eChapters

Tomato varieties produced 50% in plastic house cover more than what they produce in open air (Diez et al., 1985). Nevertheless this production increase is not, by itself the reason for the use of protected cultivation which requires higher expenses. The key factor is the cost increase of final product obtained during off-season, which created an interesting margin in spite of high production costs. The effect of cost of seed in total cost is negligible, which permitted the use of hybrid seed. The new hybrids have brought about production increases which can be calculated to be over 50% more than what the greenhouse varieties produced with the cost of hybrid seed giving an effect on total production costs of only 6-7%. So that under these circumstances, production increase associated with hybrids is certainly very advantageous, apart form other benefits to be derived from hybrids.

Success of AI programme depends on fertility of bulls used for semen production. If infertile bulls are selected in semen station for production of semen doses, large population of cows inseminated with such doses is affected. Therefore, the breeding bulls or bulls to be used for frozen semen production should be selected carefully keeping in view genetic potential, disease condition, reproductive health, libido and semen production potential of the bull. The emphasis should not only be on elimination of bulls with questionable or unsatisfactory potential, but also on induction of bulls with good semen production potential into the semen station. 

The following aspects should be taken into consideration while performing a breeding soundness examination of bulls:

The chapter “Breeding Strategies for Disease Resistance” provides a comprehensive exploration of addressing disease resistance through various breeding strategies. In an era of escalating global challenges and climate change, where crop failures can lead to food shortages and economic instability, the chapter delves into strategies that integrate traditional breeding methods with cutting-edge genetic advancements to strengthen plants against pathogens. Understanding the genetics of plant–pathogen interactions holds profound importance. This knowledge elucidates the mechanisms underpinning disease development and offers insights into developing targeted strategies for disease management. By deciphering the genetic details governing host susceptibility and pathogen virulence, we gain the ability to engineer crops with enhanced resistance, reducing reliance on chemical interventions and promoting sustainable agriculture. The chapter further discusses the mechanism of disease resistance in plants which involves inherent genetic traits that identify pathogen molecules, triggering a rapid defense response called “gene-for-gene” interaction. Systemic acquired resistance (SAR), where a local pathogen attack prompts the entire plant to boost its defense preparedness. Signaling molecules like salicylic acid play a pivotal role. Additionally, plants employ chemical defenses via secondary metabolites and leverage beneficial microorganisms to stimulate immune pathways. This coordinated approach empowers plants to effectively counter pathogens and elevate disease resistance. In this chapter, we discuss breeding strategies for disease resistance that encompass a range of vital approaches. Traditional methods involve selecting and breeding plants with inherent resistance traits and incorporating genes from related species to enhance defenses.

Introduction

In-spite of environmental, bio-physical and resource constraints in most parts of Rajasthan, the state can be classified into three distinct agro-climatic zones namely hot arid, semi-arid and sub-humid  from horticultural perspective. These diverse zones have excellent vegetable production potential with wide range of crops, varied opportunities and resource utilization. The extremes of high (March–October) and low (December–January) temperature conditions together with associated abiotic stresses in the hot arid and semi-arid regions limit the choice of crops and their genotypes, quality of produce and productivity. Vegetable exploitation with adaptive and native crop-plant species is generally found to be potential and stable under arid to semi-arid agro-climatic conditions of the state that receive 150–650 mm of rainfall and having abiotic stresses due to climatic variations, drought, frost, hot and cold winds, soil and water quality.

Our natural ecology comprises insects, which are known to have both advantageous and detrimental consequences. Insect pests are the main obstacles in maximizing agricultural crop output, since they directly or indirectly result in significant crop loss. The intricate relationship that phytophagous insects have with their hosts is the result of a protracted and ongoing evolutionary process. Because of this, it is impossible to completely eradicate them, but there is a hopeful fix for this issue, i.e., utilizing insect resistant crop varieties. Insect-resistant kinds are those that, with the same starting infestation level and similar environmental conditions, yield considerably higher yields of high-quality fruit than susceptible varieties. By boosting yield and reducing pesticide use, these varieties had an enormous economic benefit. There are a number of highly effective insect resistance mechanisms that the targeted insect pest cannot simply overcome. This chapter discusses various breeding strategies such as introduction, selection, and hybridization as well as some modern breeding approaches that have been used to develop many insect-resistant crop varieties that have significantly improved the world’s food supply, by reducing carbon inputs through reduced pesticide use. By expressing bacterial endotoxins and producing Bacillus thuringiensis (Bt) crops, genetic engineering also aids in the production of insect-resistant crops. Furthermore, RNA interference (RNAi) and genome editing by CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/CRISPR associated 9) offer new avenues for the production of insect-resistant crops.

It is imperative that the country should develop strategic planning so that available resources in different agro ecological zones of the country to exploited judiciously and utilize sustainably for further enhancing the productivity of cattle and buffaloes. Therefore, agroclimatic region and animal production system-based breeding policy strategies with a focus on large scale implementations of improved animal genetics and breeding innovations by development organizations with active participation of farmers/breeders are discussed here. Before developing sustainable breeding strategies for improving the productivity performance of a particular breed/genetic group of animal population in a given agro-climatic region, it is necessary to have a comprehensive details of population size of breed along with analysis of existing activities such as farmer/breeder’s perceptions and socio-economic levels, agriculture and livestock production systems, available feed and fodder resources, animal genetic resources, their production potentials and utilization pattern, breeding organizations, infrastructure and development facilities . The Quinquennial All India Livestock Census contains information on the herd/flock structure, sex, age, etc. and it does not reflect the factual situation about the status of breeds in terms of their population. Hence, the actual population of each breed and their geographical distribution is not clearly known. The correct picture about these breeds would be available only when breed-wise census of the livestock is carried out and status and performance of breeds are surveyed in their natural habitat and the same has been initiated in the recent survey . In the back ground of the collected and collated information on all above aspects, following region specific animal breeding strategies can be planned for conservation and genetic improvement of bovine genetic resources under different animal production systems.
Genetic Improvement of Non-Descript Zebu Cattle by Crossbreeding
The most rapid and effective approach to genetically improve the largest chunk of non-descript zebu cattle population is through crossbreeding with exotic dairy cattle breeds particularly in milk shed areas around peri-urban and industrial towns

The sheep population in India is estimated to be about 65.07 million ranking second in the world (Anonymous, 2019). There are 42 descript breeds of sheep distributed in various agro climatic zones of the country (Anonymous, 2017). It is well-known that the sheep rearing provides nutritional security and insurance to the farmer at the time of crisis due to crop failure. Therefore, sheep is seen as, “finance elevator” by the countryside poor farmer (Sharif et al., 2011). Two major sources of income; meat and wool make sheep industry a very profitable enterprise. In addition, a rich source of nitrogen, phosphorus and potash present in the droppings of sheep improves the soil fertility. Indian sub-continent isa rich source of diverse ovine germ plasm.
The native breeds of sheep of from India are well adapted to geo-physical and agro-climatic conditions. Most of the breeds of sheep in India have evolved through natural selection. Most of the breeds have generally been named after their place of origin and on the basis of prominent characters. This vast ovine biodiversity in India is being eroded rapidly and more than 50% of sheep breeds are currently under threat.
Sheep biodiversity in India is characterized by high degree of endemism and variations in agro-climatic conditions of the different regions have led to the development of various breeds/strains. Selecting for breeding animals with superior EBV in growth rate, meat, milk, or wool production, or with other desirable traits has revolutionized livestock production through out the world.
Breeding means, the manner in which selected males and females are mated. The breeders identify and select desirable qualities in animals for future mating and discard less desirable qualities. For the improvement of livestock (farm animals) selection and breeding must be practiced simultaneously. Continuous selective breeding leads to homozygosity in a population resulting in loss of variability. If all the individuals are alike, the breeder cannot make progress in future. Hence, there is a need to create variability in population. This can be achieved by breeding. Therefore, selection and breeding go hand in hand for the improvement of livestock.

Hill cattle in Uttarakhand are multipurpose animals. They are used for milk, draft, manures and ceremonial purposes. Improvement for these attributes depends on definition and subsequent selection for various traits. Based on the criteria for improvement and detailed literature analysis, it is believed that the hill cattle of Uttarakhand is one of the potential population for milk in the state specially in the remote and high altitude areas.. Hill cattle have also been used for dairy improvement as a dam breed for crossbreeding in some cases in the state. It has been observed that hill cattle in the state mostly reared as dual purpose animal i.e milk and draft. Therefore, the hill cattle could be improved for both milk and draft. The aim of the present study is to know the status, characterstics and performance  and to suggest the possible options for improvement in milk productivity of hill cattle in the state.

2.1 Introduction

The different breeding strategies (methods) that can be employed for improvement of fruit crops include introduction, open pollinated selection, clonal selection, hybrid breeding, polyploidy breeding, mutation breeding, molecular breeding, in vitro breeding and transgenic breeding. Combining traditional approaches with biotechnological approaches will speed up the rate of genetic improvement. Thus, what is required is to adopt a coordinated approach involving breeders, biotechnologists, horticulturists, pathologists, entomologists and statistician for making the cultivation of fruit crops more scientific and more profitable and thereby contributing more to improving the health of the people in a sustainable manner.

Salinity stress poses a significant threat to agricultural productivity worldwide, impeding crop growth and yield potential. Developing crop varieties with enhanced salinity tolerance is essential for ensuring food security and sustainable agriculture. Salinity stress, resulting from excessive salt accumulation in soil and irrigation water, adversely impacts crop growth, water uptake, and nutrient assimilation. Traditional breeding methods, coupled with recent advancements in molecular and genomic techniques, have enabled the development of crop varieties capable of thriving in saline environments. Genetic diversity serves as the foundation for breeding efforts, allowing the identification and selection of individuals with inherent salinity tolerance traits. Utilization of wild crop relatives and landraces provides a valuable reservoir of genetic variation for salinity stress adaptation. Incorporation of molecular markers into breeding programs expedites the selection of desirable traits. Quantitative trait loci (QTLs) associated with salinity tolerance are identified through techniques such as genome-wide association studies (GWAS) and linkage mapping, facilitating marker assisted selection. Additionally, recent strides in gene editing technologies like CRISPR-Cas9 (clustered regularly interspaced short palindromic repeats–associated protein 9) offer precise modification of candidate genes responsible for salinity response, accelerating the breeding process. A holistic approach encompassing physiological and biochemical aspects is crucial for accurate phenotypic selection. Traits, such as ion homeostasis, osmotic adjustment, and antioxidative capacity, provide insights into a plant’s salinity tolerance potential

The Annonaceae or custard apple family comprises about 120 genera and more than 2000 species (Leboeuf et al., 1982). The genus Annona is the most economically important one, containing 120 species. The major commercial species throughout the world are: the cherimoya (Annona cherimola), sweetsop (Annona squamosa) and atemoya (a hybrid of Annona cherimola and Annona squamosa). The custard apple species name ‘squamosa’ refers to the knobby appearance of the fruit. Custard apple is a small tropical tree originating in the New World tropics, probably Central America. This species is the most widely grown in the tropical regions of the America, Africa, Asia and the Pacific. Sweetsop is synonym also named sugar apple and has many other regional names, such as Custard apple (India), anon (Spanish), ata (Portuguese), noi-na (Thailand), stis (The Philippines) and fan-li-chi (Taiwan). Sweetsop is the mostly grown Annona species. The fruit is frequently found in village markets but has not shown much potential for large commercial cultivation due to the small fruit size, frequent cracking at maturity and poor shelf life. The perishable nature and supply shortages make marketing localized or air shipment essential.

Flowers are classified into three groups- self pollinated, often cross pollinated and cross pollinated- based on the extent of cross pollination which ranges from nil to 5 percent in self pollinated, 5-12 percent in often cross-pollinated and more than 12 percent in cross pollinated flowers. The information on extent of cross pollination is important to decide appropriate breeding methods to develop and improve the crop, to maintain genetic purity of seed, and to decide safe isolation distances from varieties, related species and related genera of the crop.

3.1 Autogamous (Self pollinated) flowers

When the egg in a flower gets fertilized by its own pollen, it is, referred to as autogamy. In statistical terms, it is, explained as the probability that egg gets fertilized by its own pollen as one. The coefficient of inbreeding which also measures the probability of selfing is also one in such crops. The genetic structure of autogamous flower is homozygous. The reasons for autogamy in flowers are essentially homomorphism, cleistogamy and chasmogamy. Homomorphism refers to uniformity in placement of essential floral parts, androecium and gynoecium e.g. Aster (double flowered), Balsam, Bells of Ireland, Carnation, Clianthus, Benghal dayflower (Commelina benghalensis), Gypsophila, Lupine, Salvia, Saponaria, Sweet pea and Sweet William. In autogamous ornamental crops, cross pollination in nature is almost negligible. Autogamous pollination may be of three types viz., autogamous selfing: refers to origin of pollen from anthers of the same flower; geitonogamous selfing refers to pollen from different flower on the same shoot or genet, and xenogamy, crossing refers to pollen from different flower on a shoot from another genet.

I. FILL UPS

1. _____ is the process of bringing wild species under human management.
2. _____ is referred to as taking a genotype into new environments, where they were not being grown before.
3. Introduction of plants from a foreign country is called as _____.
4. Introduction from one state to another state is called as _____.
5. When the introduced variety is well suited to the new environment it is called as _____.

A) Conventional breeding techniques
Conventional breeding techniques for spices involve various methods to improve traits such as yield, quality, disease resistance, and adaptability. Here’s an overview of conventional breeding techniques applied to specific spices:
1. Black pepper (Piper nigrum)
• Selection: Choose superior plants based on traits like yield, quality of peppercorns, and disease resistance.
• Hybridization: Cross-breed different varieties to combine desirable traits.
• Mutation breeding: Induce mutations to develop new traits or enhance existing ones.
2. Small cardamom (Elettaria cardamomum)
• Selection: Select plants with high yield, better quality, and disease resistance.
• Hybridization: Cross different varieties to improve traits such as pod size and essential oil content.
• Seed production: Improve seed production and quality through selection.
3. Large cardamom (Amomum subulatum)
• Selection: Identify plants with higher yield and better resistance to pests and diseases.
• Hybridization: Develop hybrids to enhance flavour and size of the cardamom pods.

The term genome refers to a complete set of DNA, including all of its genes. Each genome contains all of the information needed to build and maintain that organism. In the nucleus of each cell, the DNA molecule is packaged into thread like structures called chromosomes and each species has specific chromosome number. Most of the plants are diploid and they show in each one of its body cell, twice the number of haploid chromosomes (n) found in the gametes.
There are two main types of chromosomal variation that involve changes in the number. These are euploidy (in Greek “eu”means true or even and “ploid”means unit), which involves the variation of whole sets of chromosomes and aneuploidy(“aneu” means uneven), where a single chromosome within a set varies. This variation may be either increase or decrease in the chromosome number. The euploids include diploid (2n), triploid (3n), tetraploid (4n), hexaploid (6n) or even higher degree of polyploidy. Polyploidy, thus involves more than two genomes and is, therefore, a genometic mutation involving increase in the dose of whole genome. This condition of polyploidy is more common in angiosperms.

A few months back when Sharad Deshpande was talking about some processing tomatoes, I said that there is a lot of history behind processing tomatoes. He said then why don’t you speak on the subject and I said why not. So that is how this talk happened. First, I thought I will speak on breeding tomatoes as its history is even more interesting than what has happened later. I had heard a story when I went to USA for the first time in 1982. I was with Dr Charlie Rick, the father of tomato genetics, in his lab in USDA, UC, Davis, California. He talked about how the processing industry happened, who bred the types suitable for processing, how 80 percent of processing tomatoes of the USA came from California, where we are today and what could be done in this area.

In the changing Global scenario, food, nutrition, healthcare and livelihood security are the matter of great concern to human, social and economic development. The global community is increasingly looking towards finding means of sustainable nutrition for the growing population across all countries. The emphasis is on identifying lowresource strategies acceptable to the communities that do not put an unnecessary burden on the environment (FAO, 1993).
Nutritional security denotes the consumption and equitable access to adequate quantities of healthy, safe, affordable and nutritious food by every member of the family essential for optimal health and well-being. Concern for improvement of nutritional quality of vegetables has arisen in the context of providing nutritional security to our everincreasing population because poor nutrition is linked with increased risk of obesity, diabetes, and heart disease as well as broader impacts including higher health care costs and decreased productivity.
More than 1.0 billion people globally are hungry due to food insecurity problem and about 3.0 billion people are malnourished due to poor nutrition causing mainly micronutrient deficiency.

Reproduction by asexual means is common among higher plants. The best known means of asexual reproduction are by corms, bulbs, rhizomes, stolons, or other vegetative organs. Plants normally propagated in agricultural practice by these means or by budding or grafting include nearly all fruit and nut trees, strawberries, blackberries and raspberries, grapes, pineapples, almost all ornamental shrubs and trees and a few field crops such as sugar cane, potatoes, and sweet potatoes. Asexually or clonally propagated plants produce genetically identical progeny. Clones are identical copies of a genotype. Together, they are phenotypically homogeneous. However, individually, they are highly heterozygous and segregate widely upon sexual reproduction. This is not unexpected, because the types selected as commercial cultivars are likely to be vigorous ones, and a positive correlation exists between vigour and heterozygosity in most species.

2.1. Multiple Choice Questions

1. The process of bringing a wild species under human management is referred to as ????.
   1. Selection
   2. Rejection
   3. Domestication
   4. None of the above
2. ?????was perhaps the first man to use artificial hybridization to develop several new fruit varieties.
   1. Dawrin
   2. Knight
   3. Beal
   4. Mendel
3. Plant breeding aims to ???????
   1. Improve yield only
   2. Disease resistant only
   3. Insect resistance only

A) Selection of Dairy Cattle

Proper selection is the first and the most important step to be adopted in dairying. Records are the basis of selection and hence proper identification of animals and record keeping is essential. Cross-breed animals with exotic inheritance of about 50 percent are preferable.
 
Bringing animals from different agro-climatic conditions causes problems due to non-adjustment in many cases. In case, purchase becomes absolutely essential it should be from similar environmental conditions as far as possible.

General selection procedures for dairy breeds

Selecting a calf in calf show, a cow in cattle show by judging is an art. A dairy farmer should build up his own herd by breeding his own herd. Following guidelines will be useful for selection of a dairy cow.

CATTLE BREEDS The genus Bos is classified into Bos indicus  and Bos taurus. Bos indicus belongs to tropical region and have hump whereas Bos taurus belongs to temperate region and is humpless. Milch breeds are Red Sindhi, Gir, Sahiwal, Tharparkar. Dual purpose or general utility breeds are Nimari, Kankrej, Nellore, Dangi, Rathi, Deoni, Hariana, Krishna Valley, Ongole. Draught breeds are Amritmahal, Nagori, Khillari, Vechur, Bachaur, Siri, Ponwar, Kangayam, Bargur, Malvi, Hallikar. Cross-breeds Jersind = Jersey x Red Sindhi. Frieswal = HF x Sahiwal. Jerthar = Jersey x Tharparkar. Karan Swiss = Brown Swiss x Sahiwal. Karan Fries = HF x Tharparkar. Sunandini = Brown Swiss x Non descript. Jamaica Hope = 80% Jersey, 15% Sahiwal, 5% HF. Taylor = Short horn bull x Native cow. BUFFALO BREEDS (Bubalus bubalis) Buffalo breeds are classified as Riverine type

Introduction

Animal husbandry has always been an integral part of Indian civilization and our country possesses rich biodiversity of animal genetic resources, which are spread over diverse agro-climatic regions. These resources have been developed by our ancestors over several generations and have acquired special attributes like remarkable adaptability to environment, management conditions and genetic resistance to most tropical diseases besides survival on poor quality of feed and fodder. In spite of multiple threats of change, replacement, degradation and extinction, this biodiversity of farm animals comprises of 30 well-described breeds of cattle, 10 of buffaloes, 20 of goats, 40 of sheep, 8 of camel, 6 of horses, 20 of poultry besides large number of variants of native ponies, pig, donkey, yak and mithun. This mega-diversity is not accidental, nor it is purely natural, rather, it is the outcome of thousands of years of deliberate selection and planned exposure to a range of natural conditions. The description of various breeds of most economically important species of livestock viz. cattle, buffalo, goat and sheep and their genetic improvement is as follows:

Animal Genetic Resources

Agricultural biodiversity is the product of thousand years of activity during which humans have sought to meet their needs in a wide range of climatic and ecological conditions. Well adapted livestock have been an essential element of agricultural production systems. For livestock keepers, animal genetic diversity is a resource to be drawn upon to select stocks and develop new breeds. More broadly, genetically diverse livestock populations provide society with a greater range of options to meet future demands, so the wise management of the world’s agricultural biodiversity is becoming an ever greater challenge for the international community. The livestock sector in particular is undergoing dramatic changes as large-scale production expands in response to surging demand for meat, milk and eggs (FAO, 2008).

Animal genetic resources (AnGR) include all animal species, breeds and strains that are of economic, scientific and cultural interest to humankind in terms of food and agricultural production for the present or the future. Domesticated animals are considered to be those species that are bred in captivity and modified from their wild ancestors to make them more useful to humans, who control their reproduction (breeding), care (shelter, protection against predators) and food supply (Diamond, 2002; Mignon-Grasteau, 2005). Only about 40 animal species have been domesticated since the Pleistocene. Common species include cattle, sheep, goat, chicken, duck, pig, horse, buffalo, rabbit, camel, donkey, elephants, various poultry species, reindeer, etc. All these AnGR are vital to the economic development of the majority of countries in the world playing an important role in the subsistence of many communities. Although only a subset of the diversity present in the ancestral species survived in the domestic counterparts, domestic livestock diversity has been continuously evolving.

The indigenous pig has been the basis used for pig production for a long period of time. It is small in size. Improved breeds are now being used for grading up the form the basis for pig production in the rural areas. The majority of the pig population in India is of indigenous breeds though population of crossbred and exotic pigs increased by 12.7 percent from year 2003 to 2012. The exotic breed mainly comprises Hampshire, Large White York Shire, Duroc, Landrace, and Tamworth.

Domestication of the rabbit is relatively recent and most of today’s breeds have been bred by man in the last 200 to 300 years.

The rabbit has been used as an experimental animal in genetics, reproduction and physiology since the beginning of the century, but it was not until 1950 that the first findings on quantitative genetics were published in Venge’s study of maternal influence on rabbit birth weight.

Breeds of Rabbit

There are many breeds of domestic rabbits in the world and all have different qualities. Out of the number of breeds and varieties about 38 breeds and 87 varieties are recognized and well established world wide.

For commercial purposes, the most important differences between rabbits are their size, colour breeding ability and suitability to the climate. Examples of several different breeds of rabbits are given below. Some of these might be used for improving local rabbit herds.

Worldwide, almost 90% of the human food supply is provided by only 15 crop species and eight livestock species. The eight livestock species useful to man include cattle, buffalo, sheep, goat, pig, poultry, camel and horses. All or some of these species provide milk, meat, skin, fiber and manure for use of mankind. Whereas, milk and meat are important component of human food supply, skin, fiber and manure are also useful in different manner. Goats are important food-producing animals especially in tropical and subtropical regions. Goats are the most adaptable and geographically wide spread livestock species.

A breed of livestock is a group of animals that, through selection and breeding, have distinguishable characteristics and resemble one another and pass those traits uniformly to their offspring. Or A breed is defined as a group of animals that has been selected by humans to possess a set of inherited characteristics that distinguishes it from other animals within the same species. A cluster of domestic animals of a species where individuals are homogeneous in certain distinguishable characters which differ from one to the other group of animals constitute the breeds. Breeds are primarily distinguished by visual characteristics: color pattern, polled or horned condition, or extreme differences in form and shape. Breed is indicative of the perception of the breeders and the livestock industry which decides when a group of individuals constitutes a “breed”. Livestock breeds have evolved over time through genetic changes that are both natural and selected by man.

Primarily breeds have been developed to provide increased production of meat, milk and/or wool, pashmina within a certain environmental area. This breed development is a process of continuous selection over a number of generations so as to stabilize the characters in the animals for the selected traits. The distinguishable characters are quite often color markings, size, and shape, hair pattern which may have little economic significance in terms of meat, wool or pashmina production. Breed development may have begun soon after animals were first domesticated. Breed is a group of animals related by descent and similar in most characteristics like general appearance, features, size, configuration, etc. In most cases, selection has been practiced for many generations in order to fix certain characteristics in the breed. The goat breeds have since long been described primarily in terms of physical conformation (chiefly, ear, nose, face and horn), body coat/colour characteristics and body measurements with subtle reference to production traits. Today there are more than 300 breeds of goats, and they live in climates ranging from high altitude mountains to deserts. Some breeds are known by the same name in different places, but are phenotypically different from one place to another. Conversely, there are breeds that look alike but have different names in different places.

Fermentation is one of the ancient techniques that been routinely used to maintain the quality of food products. This process involves the breakdown of complex substances like carbohydrates into smaller ones which assist in extending the shelf life of food products. Fermented foods and beverages shared the major portion of the human diet which positively affect the body. Beer is a low alcoholic drink in which malt, hops and other adjuncts like aromatic herbs, honey and others are fermented with yeast to obtain a product that offers unique flavour, taste and aroma (Sohrabvandi et al., 2012).

Communication is a key to understand things between two people. Today’s communication is entirely different from pre-historic era and has taken many evolution throughout the years. Before alphabets, signs, symbols, letters and telephone evolved, communication was restricted to interpersonal interaction (i.e.) from one person to another in the form of gestures. It is in other terms called non-verbal communication. Today, communicating between two or more people has become too easy that one can communicate with more than 10 members at a time which is in technical means called conferencing.

The growth of internet has paved way for innumerable means of communication. In other words it can be told as, communication is re-defined by technology. Texts, email, tweets, tele and video conferencing have widely saved much time of people and made them recipients of today’s fast moving world.

Communication beyond history

Ancient nomads used to communicate with the help of drawings and paintings. Chauvat Cave in France is one such example which proves that communication through cave painting had taken place 30,000 years ago Before Christ (BC). Throughout the world many such cave painting monuments has been discovered. One in South Sulawesi, Indonesia and Coliboaia Cave in Romania gives an idea about how communication would have prevailed among people those days.

Later came symbols. Historical evidences prove that, symbols were used by people around 10,000 B.C. Through rock carvings pictograms were developed by ancient people to tell a story to their next generations through logographic images. It is said that, culture among human groups have evolved through rock carvings. Later, ancient cultures developed ideograms. Egyptians had their own style of communication called Hieroglyphs. Chinese created their own characters. Lastly, the alphabets re-defined language and communication was developed around 2000 BC.

The country is at long last becoming sensitive to the serious consequences of the growing rural-urban divide in terms of investment, infrastructure and opportunities for income and employment. The rural-urban divide also leads to an expanding rich-poor divide. Since crop and animal husbandry, fisheries, forestry, and agro-processing are the main sources of rural livelihoods, the current agrarian crisis is adding to the problems of hunger, poverty and unemployment. According to the Union Planning Commission, we are off-track in achieving most of the UN Millennium Development Goals. A major cause for the growing rich-poor divide both between and within nations is unequal access to modern technology. Technology helps to achieve a paradigm shift from unskilled to skilled work and thereby move large numbers of the rural poor from the primary to the secondary and tertiary sectors of economic activity. If technology has been a major factor in promoting economic and social divides in the past, the challenge now lies in enlisting technology as an ally in the movement for economic, gender and social equity.

Brainstorming is a group creativity technique by which efforts are made to find a conclusion for a specific problem by gathering a list of ideas spontaneously contributed by its members. The term was popularized by Alex Faickney Osborn in the 1953 book Applied Imagination. Osborn claimed that brainstorming was more effective than individuals working alone in generating ideas, although more recent research has questioned this conclusion. Today, the term is used as a catch all for all group ideation sessions.

Origin

Advertising executive Alex F. Osborn began developing methods for creative problem solving in 1939. He was frustrated by employees’ inability to develop creative ideas individually for ad campaigns. In response, he began hosting group-thinking sessions and discovered a significant improvement in the quality and quantity of ideas produced by employees.

Pig farming is considered as a beneficial sector in India that provides avenues of fast economic growth for new entrepreneurs and socioeconomically weaker sections, due to high fecundity rate, better-feed conversion efficiency, early maturity, small generation interval, and minimum investment on housing and equipment. Pig farming has evolved into a semi-commercial enterprise using intensive farming practises, in addition to being reared through free range management. Pig farming provides money to rural impoverished people from the lowest socioeconomic strata. As a result, effective programmes to popularise technological pig rearing of meat producing animals with enough financial supplies are required to modernise the Indian pig business and advance the productivity of small sized rural pig farms. 

Introduction

From the very early days human beings depend on animals and animal products for food and other requirements. In dairy and poultry farms high yielding animals are reared. These high yielding animals are produced by hybridization experiments. Previously the animals were developed basing on unscientific methods. Before the discovery of principles of heredity human beings have selected the animals with required characters and learned to develop the plants having the selected characters. This phenomenon is called Artificial selection. However, an increased knowledge of biology, especially genetics, has helped in improving the quality of animals and animal products as per the human requirements.

1. M/s. SALEM MICROBES PRIVATE LIMITED No: 21/10C, Bajanai Madam Street Gugai, Salem - 636 006 Mobile: +91 - 93448 37525, 70106 96630; Phone: +91 - 427 - 2469928 Email: salemmicrobes@yahoo.co.in, contact@salemmicrobes.com

Plant diseases have been documented since ancient times. Fossil data suggests that plants were impacted by illness 250 million years ago. The Indian Vedic text and Bible refer to diseases like rusts, mildews, and blights that have led to famine and significant economic impacts throughout history. Plant pathology or Phytopathology (Greek Phyto-plant pathos- suffering or ailment; logos- knowledge/study/discourse) is a division of agricultural sciences focused on the examination of plant diseases. It encompasses the recognition, comprehension, prevention, and management of plant diseases caused by different pathogens as fungi, bacteria, viruses, nematodes, and other microbes. Plant pathology is the nature, cause and prevention of plant diseases. Plant disease refers to the physiological functioning of the plants that are irritated by prolonged, phytopathogenic organisms biotic or infectious disease causing agents and abiotic or non-infectious causes such as edaphic, environmental, plant nutrition etc. covered under disorders. Plant disease can also be defined as it is a malfunctioning process in plant body caused by continuous irritation induced by some causal agent that alters the physiology of the plants and results in some suffering or symptom production. It may be other way stated that it is a sum total of the altered and induced biochemical reactions in plant system or part brought about by any biotic, mesobiotic agents or abiotic factor leading to malfunctioning of biological processes and ultimately manifesting at cellular and/or morphological level.

20.1 Unit Testing in Python Programming

The process of testing wheather a particular unit is working properly or not is called unit testing. A unit test checks small component in your application

Example

def testsum1():

assert sum([1,2,3])==6 def testsum2():

assert sum([1,1,1])==6 #assertion error

testsum1()

testsum2()

20.1.1 Step Involved in Unit Testing

(1) Import unittest from library.

(2) Create a class for test and inherit (unittest.TestCase).

(3) Write the test function in the class.

(4) Call unittest.main()

ABSTRACT

Systematic studies through stored specimens in herbaria and museum of defined geographical areas provide a set of baseline data for understanding the vegetation composition of a defined ecosyetm. A stored plant collection in herbaria offers a rich portrait of biodiversity, making innumerable contribution to science and human society. Digitization coupled with hosting of such information on world wide web (www) system has been accepted as an important tool for the dissemination of the botanical specimens in the form of databasing, imaging and geo-referencing of voucher specimens. In the present communication, we describe the development of the Janaki Ammal Herbarium (JAH) database that contains a comprehensive and searchable data of voucher snaps, historical background and statistical analysis of 23,225 voucher specimens. The information on JAH database is easy to extract data on botanical names, author citation, variety (if any), family, collection number, specific location, collection date, habitat, collector’s name and remarks on morphology. The goal of the present investigation is to digitize (database, image, georeference) all specimensin JAH, enabling themto be made available through a single portal. At concluding, all vouchers of JAH made publicly accessible via world wide web user interfaces, and also linked to PubMed, NCBI Taxonomy, where the site provide information related to Entrez records, comments and references of the particular species, while Wiki species site is linked to the free species directory. It also provide link of online accessible herbarium-based databases of the world.

The brinjal, eggplant or aubergine (French name) has originated in the Indian sub-continent and China (Thomson and Kelly, 1957, Purewall, 1957 and Martin and Rhodes, 1979). Brinjal is an important vegetable crop of the Far East, Bangladesh, India, China and the Philippines. Brinjal belongs to the family Solanaceae and is known under the botanical name Solanum melongena L. (2n = 24). There are 3 main botanical varieties under the species melongena(Chowdhury, 1976). The round or egg-shaped cultivars are grouped under var. esculenturn, the long slender types are included under var. serpentintumand the dwarf brinjal plants are put under var. depressum.

1) Phomopsis fruit rot or Blight
Diagnostic Symptoms
• Plants are attacked at all stages of growth.
• On leaves, circular to irregular, clearly defined grayish brown spots having light centers appear. The diseased leaves become yellowish in colour and may drop off.
• Several black pycnidiacan be seen on older spots.
• Lesions on stem are dark brown, round to oval and have grayish centers where pycnidia develop.
• At the base of the stem, the fungus causes characteristic constrictions leading to canker development and toppling of plants.
• On fruits, small pale sunken spots appear which on enlargement cover entire fruit surface. These spots become watery leading to soft rot phase of the disease. A large number of dot like pycnidia also develop on such spots.
• Infection of fruit through calyx leads to development of dry rot and fruits appear black and mummified (Fig.1).

I. FILL UPS

1. Brinjal is rich in _____ and _____.
2. In brinjal, _____ is the common feature in case of style.
3. Stigma receptivity of brinjal is _____.
4. Pollen viability in brinjal is _____.
5. The isolation distance recommended for brinjal certified seed production is _____.

Shoot and fruit borer: Leucinodes orbonalis: Pyraustidae

The pest is active throughout year, but more during monsoon period. Heavy losses up to 60% can occur.

The adult is a greyish brown medium sized moth with white and hyaline wings, having triangular brown and red markings on forewing. A crescent shaped mark facing outside at the apical margin is typical for the species. About 150-250 creamy white eggs are laid singly on leaves, tender shoots, flowers and developing fruits. Egg period is 3-5 days and the hatched larva completes its life in 15 days with 5 instars.

India is the primary centre of origin of brinjal. Decandolle (1904) reported it as native of Asia. In Europe it is not known earlier (before 17th early). According to N.I Vavilov, the egg plant originated in Indo–Burma region and china and spread to South Europe, china and Japan. Vavilov (1951) suggested China a centre of origin of brinjal. Crop is restricted mainly to South and South-East Asia, Southern Europe, China and Japan. Wild brinjal types are available in Southern Coastal area of Africa.

Botany

Solanum melongena’ L. var. esculentum - round or egg shape 
var. serpentinum – long, slender type 
var. depressum – dwarf brinjal plant 
It is often cross pollinated crop due to heteromorphic flower structure (heterostyle)

Advances in seed production techniques have revolutionized brinjal cultivation, enhancing productivity, quality, and sustainability. Traditional methods, such as manual emasculation and pollination, have been supplemented and in some cases replaced by innovative approaches, contributing to increased efficiency and reduced labor costs. Cytoplasmic male sterility (CMS) and grafting technologies have emerged as valuable tools, offering novel avenues for enhancing breeding efficiency and managing soil-borne pathogens. These advancements have facilitated the development of high-yielding F1 hybrids and improved pure-line varieties with enhanced resilience to pests and diseases. Furthermore, the adoption of precision agriculture techniques, including controlled environment agriculture and hydroponics, has enabled year-round seed production, mitigating the impact of seasonal fluctuations and adverse weather conditions. Integrated pest management (IPM) strategies have been integrated into seed production protocols, minimizing chemical inputs and promoting environmentally sustainable practices. Additionally, innovations in seed extraction methods, such as mechanical extraction and dry extraction techniques, have streamlined the seed processing workflow, resulting in higher seed purity and improved germination rates.

Brinjal is the fifth most economically important Solanaceous crop after potato, tomato, chilli, and tobacco. Apart from the well-known brinjal species (Solanum melongena L.), two other under-utilized species, the scarlet eggplant (S. aethiopicum L.) and the gboma eggplant S. macrocarpon are also cultivated. Brinjal, also known as aubergine or eggplant, under the family Solanaceae (Chromosome No.: 2n = 2x =24) is one of th important vegetables of the tropical countries particularly India, Bangladesh, Pakistan, China, Japan, Indonesia, Thiland, Malaysia and the Philippines. Brinjal is the most common, popular and principal vegetable crop grown widely in India for its various shape, size and colour of fruits. Brinjals are rich sources of potential antioxidants: anthocyanin and phenolic compounds.
Origin, domestication and adaptation in India
Brinjal (Solanum melongena) is believed to have been originated in Indo-Burma region and perhaps China is the secondary centre of origin of this crop. Various data indicate, that from the several species that evolved in Africa, one (S. insanum), gave rise to a distinct species which spread to South-East Asia as the wild ancestor of S. melongena (Lester 1998; Ranil et al., 2017). This wild progenitor of the cultivated species has wide distribution in at least 10 habitats in India which amply suggests India being the centre of origin of brinjal.

Broad dhaniya (Eryngium foetidum L.: Umbelliferae - Apiaceae) is an underutilized leafy vegetable and aromatic plant used for seasoning food items and source of medicine. It is a shade loving plant of tropical regions.  It has got status of a promising cash crop with huge export potential particularly in United Kingdom, USA and Middle East markets. Its medicinal and seasoning properties are well known in various countries like Vietnam, India and in the Amazon region (De Gumao et al., 2002). Broad dhaniya is relatively unknown in many other parts of the world and is often mistaken and misnamed for its close relative Coriander (Coriandrum sativum L.).

Brassica oleracea variety italica is a type of cabbage from the mustard family (Brassicaceae) that is grown for its delicious blossom buds and stalk. Sprouting broccoli, which is native to the eastern Mediterranean and Asia Minor, was first planted in ancient Rome and then imported to England and America in the 1700s.

Botany & taxonomy Broccoli (Brassica oleracea var. italica) is an edible green plant belonging to the cabbage family (family Brassicaceae, genus Brassica) that is grown for its enormous blooming head, stalk, and small accompanying leaves. Sprouting and heading broccoli (Brassica oleracea var. italica) are two varieties of broccoli. After the terminal heads are removed in sprouting kinds, axillary shoots with smaller flower heads normally grow. Heading type produces cauliflower-like heads that can be a variety of colours. 

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