eChapters

Vegetables are grown on a limited scale in homesteads for family use and cultivated in an extensive scale for marketing. Depending on the purpose for which they are developed, vegetables gardens are classified into different types, viz., kitchen garden or nutrition garden, market garden, truck garden, garden for processing, garden for seed production and vegetable forcing or protected cultivation.

1. Kitchen garden or nutrition garden

Kitchen garden or home garden or nutrition garden is primarily intended for continuous supply of fresh vegetables for family use. A number of vegetables are grown in available land for getting a variety of vegetables. Most of works are done by family members. Area of garden, lay out, crops selected etc. depend on availability and nature of land. In rural area, land will not be a limiting factor and scientifically laid out garden can be established. In urban areas, land is a limiting factor and very often crops are raised in limited available area or in terraces of buildings. Cultivation of crops in pots or in cement bags is also feasible in cities.

The unique advantages of a kitchen garden or home garden are:

(i) Supply fresh fruits and vegetables high in nutritive value

Introduction
The area of drug delivery has progressed remarkably in recent decades propelled by the demand for more efficient therapeutic approaches that can reduce side effects and improve the therapeutic index of medications. Conventional approaches to drug delivery frequently lead to widespread distribution, putting healthy tissues at risk of exposure to harmful levels of therapeutic compounds, while not achieving sufficient concentrations at targeted disease locations (Yu et al., 2023). This issue is especially apparent in addressing intricate conditions like cancer, cardiovascular diseases, and neurological disorders, where the therapeutic window is limited, and the likelihood of adverse effects increases. In this context, the advancement of targeted drug delivery systems has become an essential approach for enhancing the effectiveness and safety of therapeutic agents, with liposomal drug delivery systems receiving significant focus (Mitchell et al., 2021). The concept of targeted drug delivery revolves around the selective direction of therapeutic agents towards specific tissues or cells, aiming to reduce exposure to non-target areas. This method is crucial for enhancing treatment efficacy, especially in conditions marked by variability in drug response, like cancer. For example, traditional chemotherapy frequently results in considerable toxicity and negative side effects because of the non-specific distribution of drugs (Gao et al., 2023). Utilizing specific delivery methods allows healthcare professionals to increase the concentration of therapeutic agents in tumor tissues, leading to better treatment results and minimizing harm to healthy tissues (Bae et al., 2011). Beyond oncology, targeted drug delivery shows potential for various diseases, such as infectious diseases, autoimmune disorders, and neurological conditions. For example, in the management of viral infections, targeted delivery can increase the concentration of antiviral agents within infected cells, thereby enhancing efficacy and minimizing systemic toxicity. Targeted delivery systems can enhance the transport of therapeutics across the blood-brain barrier (BBB) in the context of neurodegenerative diseases, addressing a major challenge in drug development for central nervous system (CNS) disorders. Delivering drugs selectively to their sites of action is essential for achieving optimal therapeutic outcomes and enhancing patient quality of life (Wu et al., 2023 a; Rana et al., 2024).
Among various drug delivery systems, liposomes have surfaced as a flexible and efficient platform for targeted drug delivery. Liposomes consist of lipidbased vesicles formed by phospholipid bilayers, capable of encapsulating both hydrophilic and lipophilic drugs. Their distinctive structure and characteristics render them excellent options for various applications in targeted therapy. The encapsulation of a wide variety of therapeutic agents, such as chemotherapeutics, anti-inflammatory drugs, peptides, and nucleic acids, stands out as a key benefit of liposomes. This adaptability facilitates the simultaneous delivery of various drugs or therapeutic approaches within one liposomal formulation, promoting combination therapies that can improve effectiveness and address resistance mechanisms (Wang et al., 2023).

2.1 Quantitative Classification

It the data are classified on the basis of phenomenon which is capable of quantitative measurement like age, height, weight, prices, production, income expenditure, sales, profits, etc., it is termed as quantitative classification. The quantitative phenomenon under study is known as variable.  For example the daily incomes of different retail shops in a town may be classified as under.

Dendrobium is a huge genus of orchids. It was established by Olof Swartz in 1799. The name is from the Greek word “Dendron” means “tree” and “bios” means “life”; it means “one who lives on trees”, or essentially, “epiphyte”. The truly spectacular genus Dendrobium contains the largest diversity of horticulturally interesting specimens. More than 1,000 natural species make dendrobium the second-largest orchid genus. Dendrobiums are among the most commonly encountered orchids in the retail trade. Flowers are very long-lasting both on the plant and once cut, looking fresh for up to three weeks or more. Faded flowers on the bottom of the stem can be removed to encourage upper buds to open. Dendrobiums are sturdy orchids that can add a focal point to any room.

ORIGIN AND DISTRIBUTION

Dendrobiums are originally from Southeast Asia. The geographic distribution is from India through China, Japan, Malaysia, Philippines and the islands of the South Pacific with the largest diversity in New Guinea. Dendrobium species are either epiphytic or occasionally lithophytic. They have adapted to a wide variety of habitats from the high altitudes in the Himalayan mountains to lowland tropical forests and even to the dry climate of the Australian desert.

Preliminaries
    
Minimum Variance Unbiased Estimator and Cramer, Rao Inequality
    
Minimum Variance Unbiased Estimator (M.V.U.E.) and Black Wellisation
    
Results on UMVUE and MVUE
    
Efficiency and Consistency
    
Consistency
    
Sufficiency and Completeness
    
Distribution Possessing Sufficient Statistics
    
Sufficient Statistic for Several Parameters
    
Completeness of a Sufficient Statistic
    
Some Important Results in Theorem Forms
    
Minimal Sufficient Statistic
    
Results on Complete Sufficient Statistic

The State of Kerala has witnessed an unprecedented and unusual flood which devastated the entire State during August 2018 after the notorious 1924 flood, popularly known as the flood of 1099. Heavy rainfall from 14 to18 August 2018 led to flash floods across the State. This was aggravated by the dam opening and subsequent water level in the downstream of the rivers. 33 dams were opened across the State. This has caused the river water to flow into the inland areas. Rivers overflowed and inundated the river side villages and towns. It was reported that the water levels at many places were of the order of 20 feet. Landslides were the major threat that claimed many human lives. A chain of mud slip/land slide events took place during the heavy rainfall period at the time of flood across the mid and high lands of the State, which are ecologically sensitive areas. Even before the heavy rainfall events started on 14th August, 2018 there were major rainfall events on August 8thand 9th. On 9thAugust 2018, Nilambur (Malappuram District) recorded extremely heavy rainfall of 400 mm which is a record rainfall in 24 hours as far as the State is concerned.

Abstract

Geomatics (Remote Sensing and GIS) based tsunami damage assessment was carried out for Nagapattinam coast as a part of All India Coordinated Programme of NRDMS, Department of Science and Technology, New Delhi. The paper discusses the methodology and the inferences made for Nagapattinam region, Sirkali block and north Poigainallur panchayat village, holistically for the former and as case studies for the latter two. The regional studies show that the coastal geomorphology has played a significant role in tutoring the tsunami inundation and the damages with beach, dunes, tidal flats, backwaters and rivers / streams facilitating the inundation of tsunami. The studies in Sirkali block show the similar role of geomorphology, but the damage assessment carried out for Water bodies, soil and ground water show appreciable damage to Aquifer in the form of saltwater mixing / intrusion due to tsunami. Detailed geospatial data bases were generated village wise too. On the basis of the studies, possible remedial strategies were also suggested.

Keywords: Remote Sensing, GIS, Tsunami 2004, Damage Assessment, Tsunami mitigation, Nagapattinam.

Resource management has become a formidable task with loss of cultivable land to urbanization. Coercion to increase production has resulted in adoption of intense farming. This, however, has resulted in significant increase in the pest problem. Despite ten-fold increase in insecticide use during the last 80 years, losses inflicted by pests have nearly doubled. Estimates of yield losses caused by various pests attack range from 10-35% in various crops during different seasons which account for about 2000 crore revenue loss to the horticulture industry and is further projected at 5000 crore or more in future due to changing climate and intense farming (Reddy, 2010 and Rather, et al, 2013).

Abstract: Zinnia, multipurpose ornamental annual is noted for its garden performance. The uses of zinnias range from dwarf cultivars used for containers, borders or edging, bedding to tall cultivars used for cut flowers. Breeders and seed companies successfully introduced hybrid cultivars in the mid 20^th century. Some modes of inheritance of floral doubleness, floral colour, male sterility, self incompatibility, leaf morphology, disease resistance have been discussed/ clarified; research succeed in interspecific hybridization, polyploidy, mutation breeding and seed production are presented. Somaclonal variation for generating mutants has created new horizons in zinnia breeding. Important traits for both production and landscape use include flower colour and bloom time, plant habit and form, seed germination, disease and virus susceptibility.

Keywords: Breeding, cytology, inheritance, polyploidy, F₁ hybrids, seed production.

Abstract: The study reports the influence of biophysical and socio-cultural factors on composition, diversity and distribution of plant species in the homegardens of the Andaman and Nicobar archipelago of India. In Nicobar mostly an aboriginal tribe the Nicobari predominates. The Nicobaries are Christians. However, in the Andamans people from different parts of Indian subcontinent have been rehabilitated in the mid twentieth century. Mixed culture prevails in South Andaman, but in the other Andaman islands either Bengali or Tamil culture predominates. Biophysically, South Andaman is hilly whereas Nicobar is flat. Rests of the islands lie in-between the two extremes. But, all are similar climatically. Twelve to thirty-four plant species are found in the homegardens that are planted, cared and harvested. These plants are: palm, fruit, spice and forest trees, formed three-storey structure in Andaman and two-storey structure in Nicobar’s homegardens. Floristic similarity among the homegardens of the Andamans is 82 to 92%. However, it is only 12-18% between the homegardens of Andaman and Nicobar. Compared to Nicobar, species richness is greater in the homegardens of the Andamans. But, diversity is higher and evenness lower in the homegardens of Nicobar. All plant species in the Nicobar’s homegardens are spontaneous in regeneration. Among the Andamans, proportion of spice trees is higher in the homegardens of South Andaman, mango and citrus in North Andaman, and pineapple and vegetables

Chrysanthemum (Dendranthema spp.) belongs to family Compositae (Asteraceae). It was named by Carolus Linnaeus from the Greek prefix “chrys” means golden and “anthemon” means flower. Chrysanthemum morifolium is the modern florists chrysanthemum, which evolved as a result of endless variation and hybridization from C. sinensis, C. indicum and C. ornatum (Bailey, 1963). This group is also distinguished as C. hortorum. The name of C. morifolium Ramat has been changed to Dendranthema grandiflora Tzvelev (Anderson, 1987, Heywood and Humphries, 1977). Chrysanthemums are mainly herbaceous perennial and bear flowers in capitula. Chrysanthemum perennates in nature by means of stolons and is readily propagated through basal stem cuttings. It ranks second next to roses in importance among the cut flower crops in the world.

Evidence is fast accumulating that the problem of climate change is of a scale not previously encountered by human societies. The scale and scope of climate change challenges to food and water security are unprecedented. World food supply is already facing significant pressures. Even without climate change, ensuring sufficient food for all in the 21st century would be difficult enough. Climate influences food security through many channels. Climate change will increase the severity and frequency of cyclones, flooding and drought. It will intensify rainfall variability, increasing water stress, weeds, pests, and erosion and reducing soil fertility. Above certain temperature ranges, crops develop more rapidly, resulting in lower overall grain production, even moderate increases in temperature can decrease yields in major food crops. Population growth, urbanisation, higher per capita calorie intake, and increasing consumption of meat combine to put more pressure on exiting water recourses.

Introduction

With ever-increasing population growth, waste management has become a major challenge threatening environmental sustainability. The total solid waste generation was recorded to be 1.3 billion tonnes per year by the world’s cities in 2012, with an ecological footprint of 1.2 kilograms per person/day. With the intensity with which the population growth is happening coupled with urbanization, predictions are made that by the end of the year 2025, 2.2 billion tonnes of municipal waste will be generated (The World Bank, 2018). 

Under the selected breeding system selected males and females are mated. The breeding system can be classified into five different ways depending on their phenotypic and genotypic relations.
The five Breeding Systems are
(1) Random mating,
(2) Phenotypic assortive mating,
(3) Phenotypic disassortive mating,
(4) Genetic assortive mating and
(5) Genetic disassortive mating.
1. Random mating or Panmixia: It is a system of mating in which each male individual has an equal opportunity to mate with the female individual and vice versa. This mating system generally takes place in nature where the number of males and females are assumed to be equal.
2. Phenotypic assortive mating: In this type of mating animals which are phenotypically alike are allowed to mate among themselves. This is also called “like to like” mating.
3. Phenotypic disassortive mating: Here individuals which are phenotypically unlike are allowed to mate. It is also called “unlike to unlike” mating. For example, mating of tall with short individuals.
4. Genetic assortive mating: In this system individuals, which are closely related genetically are allowed to mate. This is also known as inbreeding.
5. Genetic disassortive mating: This system is just opposite to the previous system where mating takes place between less closely related individuals. This is also called as out breeding.

Introduction

Indian agriculture has come a long way since the inception of planning in1951. All along there was an almost obsessive concern of development policy with the attainment of self-sufficiency in food. We faced nightmare of absolute shortage of food grains supplies in the 1960s, when the average annual imports of wheat hovered around three million tones. We survived through this phase because of the munificence of the US, which supplied wheat to us under its PL 480 programme. There have been several policy statements for agriculture during the last sixty years. India attained self-sufficiency in food grains in the 1970s and what is more, has emerged as an exporter of food grains in more recent years. Attainment of food self-sufficiency, even in a technical sense, is admittedly an important landmark in the history of growth of Indian agriculture, but this has not meant the dilution of problems facing Indian agriculture. Problems of agricultural growth and rural development in general continue to remain, in the new millennium, as daunting as they were in the 1950s. One major difference is that agricultural sector today faces a host of what we might call second generation problems.

Chilli (Capsicum annuum, 2n = 2x = 24, family Solanaceae) also known as hot-pepper, classified as often-cross-pollinated crop is consumed both as fresh green and dry spice type. It is a rich source of vitamin C and pungency to the consumers and world food industries. The global area and production statistics often run into different figures due to inclusion of some times only fresh green chilies, sometimes red-dry chillies and sometimes inclusion of sweet peppers also in this broad category. The global production of fresh and dry chillies in 2014 has been reported to be 32.32 million tons where China alone accounted for 16.12 million tons followed by India with over 5 million tons of production. Other major countries growing chilli are Mexico, Indonesia, Spain, Turkey, USA, Korea, Bangladesh, Pakistan, Nigeria, Thailand and Ethiopia. More than 65% of global green and dry chillies production is in Asia, while Europe contributes 12% and Africa around 10%. China is the leading producer of green and dry chillies, Area under chillies in China is less than that in India, but productivity is almost double than that in India.

Use of insect-resistant varieties in integrated pest management is an economically and ecologically sound alternative to synthetic pesticides. A large number of germplasm lines of different fruit crops have been evaluated for resistance to pests, and a few genotypes with resistance to insects, mites and nematodes have been identified. The resistance of “Winter Majetin” apple variety against woolly apple aphid, Eriosoma lanigerum (Hausmann) was the first report of innate resistance to insect pests in fruit crops. Another successful example was the resistance to grape phylloxera, Daktulosphaira vitifoliae (Fitch), in which the susceptible European scions (Vitis vinifera) were grafted onto the resistant American rootstocks (Vitis labrusca) in late 1800s. Various leaf characteristics, such as hairiness, pubescence, thickness of veins, sponginess, stomatal density and fruit characteristics such as rough skin, have been reported to confer resistance to insect pests. High content of phenols, flavonols, potassium, calcium, and low carbohydrate and nitrogen contents have also been reported to confer insect resistance in various fruit plants. The germplasm has been screened against various pests under natural as well as artificial infestations. In apple, rootstocks (MM-series) resistant to woolly apple aphid have been developed. Molecular markers for three genes that confer woolly apple aphid resistance are located on two linkage groups (LG). Low infestation of the woolly apple aphid has also been recorded in Golden Delicious variety which incidentally is the most preferred host of apple fruit moth. The scab resistant apple selections, HCR21T200, HCR23T125, S80ER21T72 and TSR16T223 have also been found to be resistant to the European red mite, Panonychus ulmi (Koch). Peach varieties such as Flaming Gold, Stark Early Giant, Early White Giant and Flavour Crest are moderately susceptible to the peach leaf curl aphid, Brachycaudus helichrysi (Kalt.). Peach cultivar, Matchless has been reported tolerant to flat headed stem borer, Sphenoptera lafertei Thomson. Early maturing varieties of peach are reported to escape the fruit fly, Bactrocera dorsalis (Hendel) damage while Nemaguard, and Nemared rootstocks are resistant to important nematode pests. Almond varieties, Briggs Hard Shell, Katha 85, Ribba Selection and Tree No. 55 have been reported free from peach curl aphid infestation.

Permeability is a fundamental concept in food packaging, shaping the protective capabilities of packaging materials by determining the extent to which gases and vapors can move through them. This property plays a crucial role in preserving food freshness, safety, and quality by controlling the interaction between the food product and its surrounding environment. Understanding permeability is essential in designing packaging solutions tailored to the specific requirements of different food products, as improper permeability can lead to accelerated spoilage, nutrient degradation, and undesirable changes in texture and flavor. In this chapter, we explore the science of permeability in food packaging, breaking down its core principles, the behavior of different gases and vapors in various packaging materials, and the factors influencing permeability. Additionally, we examine how permeability impacts shelf life and consumer satisfaction, offering insights into selecting materials for specific food types. By understanding and manipulating permeability, food manufacturers can develop packaging that optimally balances protection and breathability, extending product shelf life and ensuring quality