eChapters

One of the greatest achievements in science is the development of vaccines. Vaccines have been revolutionary for the prevention of infectious diseases. They have prevented a large number of deaths caused, every year, by dreadful diseases like smallpox, polio, hepatitis etc. Diseases like smallpox and polio have been successfully eradicated by vaccination.

Inclusive education requires learning environments that recognize and respond to the diverse sensory, physical, cognitive, emotional, and learning needs of students with disabilities. The integration of Generative AI with Assistive Educational Technology and digital pedagogy creates new possibilities for removing longstanding barriers to participation and achievement. This chapter explores how intelligent technologies can provide flexible, adaptive, and personalized learning experiences for disabled students. It examines applications involving text-to-speech, speech-to-text conversion, screen readers, captions, intelligent interfaces, eye tracking, gesture-based controls, AR/VR, multimodal content, real-time feedback, and AI-supported personalization. Generative AI can further enhance conventional assistive technologies by producing customized written, visual, and audio learning materials according to individual requirements. Universal Design for Learning provides an important framework for ensuring that these technologies support accessibility and inclusion rather than creating additional barriers. The chapter also highlights the importance of individualized learning plans, teacher preparation, family and community engagement, emotional support, and stakeholder collaboration. By combining digital pedagogy, assistive technologies, and GenAI, educational institutions can move toward more equitable, accessible, learner-centered environments in which students with disabilities can participate meaningfully and develop their full potential.

Modern garden designs are classified on the basis of utility, need, location and materials used. Nowadays, garden types are focused on issues contributing towards ecological balance, biodiversity, environmental moderation and sustainability as well as personal preference and taste. This has given new perspectives to roof gardening, rock gardening, home gardening, kitchen gardening, green belt development, traffic islands, avenue plantation etc. Further there is incorporation of alternative energy sources like solar systems, water harvesting, etc. A garden could be for entertainment or a place to relax for some people and for others, a productive kitchen or herbal garden is more important. Some common garden types are given below, where in it is also possible to combine elements of two or three different types to create something entirely different.

Vegetables form an important component of our daily diet as they provide necessary nutrients to the diet and they add colour, texture and flavour to it. Vegetables contain very high content of water (about 78 to 98%) and are reasonably good source of starch, sugar, cellulose, hemicellulose, pentosans and pectic substances. They also contribute minerals, vitamins and indigestible fibers to our diet. The yellow, orange and dark green leafy vegetables are rich source of carotenes- the precursors of vitamin A. Non-volatile acids, such as citric, malic, oxalic and succinic acids, contribute to their flavour. The very strong flavour characteristics of some vegetables like onion, garlic, cabbage, cauliflower, etc. are due to certain sulfur containing volatile compounds. However, vegetables, in general, are poor source of protein and amino acids.

India has made significant progress in the production of vegetables since independence because its diverse agro-climatic zones ranging from tropical to temperate allow the production of a wide spectrum of vegetables.At present, the country is producing about 108 million tonnes of vegetables and considered the second largest producer in the world (Venkatesan et al., 2006). Currently, the plant breeders are focusing their efforts to produce high yielding varieties having resistance against diseases and herbicides and tolerance against drought and salinity. Therefore, the physical aspects of quality, i.e., shape, size, texture, colour, tenderness, etc. are given due priority in the breeding programme with no emphasis to the biochemical and nutritional quality parameters, which include dry matter, proteins, vitamins, sugars, flavouring compounds, alkaloids, flavonoids, etc. However, under present set up of World Trade Organization (WTO), the country will have to compete with quality conscious European and developed countries, and with inferior quality product, it would not be possible to penetrate the foreign market. Therefore, breeding programme in a country like India with future-plans of globalization of agriculture produce must be aimed at achieving good nutritional quality. In different types of vegetable, a varied set of biochemical parameters determines the quality. In this chapter, the methods for qualitative and quantitative determination of these parameters in vegetables have been described.

Introduction

Organic farming is basically a holistic management system, which promotes and improves the health of the agro-ecosystem related to biodiversity, nutrient biocycles, soil microbial and biochemical activities. Organic and bio-dynamic farming emphasises management practices involving substantial use of organic manures, green manuring, organic pest management pratices and so on. It has also come to mean that it is a system of farming that prohibits the use of artificial fertilisers and synthetic pesticides.

Biodynamic agriculture is an advanced form of organic farming system that is gaining increasing attention because of its added advantage of soil health and food quality. It is an alternative variant where the chemical fertilisers are totally replaced by microbial (biological) nutrient givers such as bacteria, algae, fungi, mycorhiza, actinomycetes. Biological Pest management of crops is undertaken by employing predators, parasites and other plethora of natural enemies of pests, in addition to all the rest of option that help to avoid resorting to chemical pesticides. These agents could be augmented into farms or promoted through such activities that favour their flourished activities. Composting, Green manuring, crop rotations. Intercropping, mixed cropping etc. as well as bird perches, trap crops promote such biological activities.

3.1 Introduction

Tomato is one of the most versatile vegetable with wide usage not only in Indian culinary but also in world cuisines. Despite botanically being a fruit, it is generally eaten and prepared like a vegetable. Tomato is producing a very good source of income to small and marginal farmers and provides nutrition to the growing population. Sometimes, it is called poor man’s orange in India and Love of Apple in England. Tomato is one of the most important “protective foods” because of its special nutritive value. The100 g of edible portion of tomato contains 94.1 g of water,2.5 g of total sugar, 1.0 g of protein, 0.3 g of fat, 4.0 g of carbohydrates, 0.6 g of fibre, vitamin A (1100 I.U), vitamin B (0.20 mg), vitamin C (23 mg), malic acid (150 mg), citric acid (390 mg), oxalic acid (3.5 mg), potassium (268 mg), and phosphorus (27 mg). Tomato is a rich source of minerals, vitamins and organic acid. Tomatoes are the major dietary source of the antioxidant lycopene, which has been linked to many health benefits, including reduced risk of heart disease and cancer. It is used for treating chronic dyspepsia, bronchitis, asthma and also used as a blood purifier. Tomato fruits contain 20-50 mg of lycopene/100 g fruit. Tomatine is a steroidal glycoalkaloid present in tomato. Tomatine content is higher in leaves and flowers than fruits. Tomatine content is 300 mg/100 g in small hard tomato fruits whereas in large green tomato it is 150mg/100 g. There are various types of flavouring compounds found in fruits, which enrich the taste;so, several processed items like paste, puree, syrup, juice, ketchup, drinks etc are prepared on large scale. Tomato fruit aroma is due to sulfonium. Tomato acidity is due to citric acid and pH of the tomato juice is 4.5.Tomato is very good appetizer and its soup is said to be a good remedy for patients suffering from constipation. Three flesh colours are found in tomato, namely, red (lycopene pigment), yellow (carotenoid) and tangerine (prolycopene).Tomato seed oil (24%) is used for manufacture of margarine. About 33% of total tomato growing area is covered by F1 hybrids which is highest among the vegetables grown in India. A book entitled Tomato was written by Dr. G. Kallo in 1986.

The collection of cones/fruits and seeds is the first step in the harvest, processing, and storage of seed in which man interacts with nature in determining ultimate seed quality. Successful collection, therefore, depends on understanding seed maturation and dispersal characteristics of each species, knowing local weather trends, and evaluating crop quality. Collection of propagating material is an expensive process and it is therefore also important that areas wherein cones and seeds are to be collected are evaluated to determine whether a sufficiently heavy crop to permit economic collection of seeds is present and whether the seed zone and elevation represented by the candidate area is appropriate for the production of seedlings needed in the reforestation program. Remember that properly collected, processed, and stored seeds may remain viable for a decade, so evaluation of seed needs may be projected well in advance of current harvest schedules through proper planning and organization of seed collection.

Introduction

Seeds are regarded as carriers of new technology and serve as basic catalytic input for enhancing the agricultural production. Hence the timely availability of quality seeds of the right variety in adequate quantity decides the strength of an agricultural economy. The intensive crop improvement programmes have resulted in the development of large number of hybrids and high yielding varieties in many important crops. Today, the Indian seed industry is the fifth largest seed market in the world, accounting for 4.4 per cent of global seed market. In terms of global trade, India is almost self-sufficient in flower, fruits and vegetables and field crops seeds (Anonymous, 2015). Economy of crops depends on good crop variety. Farmers choose these verities based on good quality traits and satisfactory yield. Thus, it is always essential to do fidelity check of all plant variety. The genetic purity is one of the most important aspects of quality control. Seed quality includes good germination, purity, seed health and vigour. With the increase in seed industry, there has been a refinement in the techniques used for testing genetic purity or genuineness of seed purity. Methods for testing genetic purity include different morphological, chemical, biochemical and molecular markers. Under PPV & FR Act, DUS (distinctiveness, uniformity, stability) testing procedure is performed with morphological descriptors. However, in agriculture, biotechnology has found applications in checking of true to type of clones and variety identification programs using molecular and chemical markers. Markers that reveal polymorphisms at the protein level are known as biochemical markers, while DNA markers reveal polymorphisms at the DNA level.

6.1 Introduction

Perennial crops are crucial for maintaining food security, despite making up only 4.2–4.7% of all agricultural acreage (Kreitzman et al., 2020). The value of fruit and nut production reached a value of USD 823 billion globally in 2020, with the top five fruit crops being apples (87 Mt), oranges (78 Mt), grapes (77 Mt), mangoes (55 Mt), and apricots (41 Mt) (Statista, 2020). The tree nut business is growing quickly, although making up a smaller share of the world’s agricultural output. Global tree nut output is expected to reach 4.2 Mt in 2019–2020, with almonds, cashews, walnuts, hazelnuts, and pistachios accounting for 31%, 17%, 21%, 12%, and 14% of the nut market share, respectively (Serna, 2020).

Tree crops require a longer investment period before producing a commercial yield; sweet cherry takes three years to attain a commercial yield, while pistachio takes ten (Rezaei et al., 2019). High-density monocultures of cultivars chosen for their potential yield, fruit quality, and disease resistance are part of optimal tree crop production techniques. These monocultures are maintained under intensive, high-input farming systems (Simon et al., 2017). However, inadequate pollination can seriously impair the quantity and quality of these agricultural products, prompting for meticulous dedication to pollination research and management (Bosch et al., 2021; Forbes et al., 2019).

Effective pollination, and on the contrary, situations in which pollination is restricted or deficient, depend on both internal and external factors (Figure 7.1, Table 7.1). The period of stigma receptivity, the lifespan of the ovule, and the quality and availability of compatible, suitable pollen are all considered as intrinsic factors (Howlett et al., 2015). Agronomic methods pertaining to plant nutrition, orchard layout, pest and disease control, pollinator activity, pollen quality, and weather patterns and their effects on flowering synchrony are examples of extrinsic factors(Toledo-Hernandez et al., 2017). Hatfield and Prueger assert that pollination is one of the phenological stages that is most sensitive to temperature, and as such, it has a significant impact on productivity (Hatfield and Prueger, 2015). Climate has been shown to be a key factor in determining pollination success and production in crops including peaches, apples, and almonds.

ABSTRACT

Punjab is the richest state in the country in term of per capita income and has earned the name as food bowl of the country by putting 84-85 per cent of its geographical area under highly intensive, technical and mechanical agriculture with cropping intensity as high as 185 per cent and contributing more than one third of rice and half of its wheat production to the central pool of food reserve. The food grain production in the state has increased approximately twelve times in a span of about 50 years after independence from 20 lac tones in 1950-51 to 234.89 lakh tonnes in 2002-2003. Achieving this high productivity without caring for natural resources has resulted in a considerable loss in the inherent production potential and deterioration of soil health. As a result, man is getting serious warning signals in the form of lowering of water table, drought, high rate of environmental pollution, extremes of climatic parameters, etc. Agriculture in the state has become too intensive, wasteful and reckless and the radical changes are required to maintain the balance. Therefore, there is a strong thinking to diversify farming in the state to maintain the sustainability of the whole system. The state government is stressing hard to save the natural resources through the diversification in traditional crop rotation and adopt resource-conserving measures.

The wellbeing of a person depends on his immune system. Any deficiency in any component of the immune system is called immunodeficiency and it may impair the normal functioning of his body and makes the person more susceptible to infections.

As long ago as 1881 Charles Darwin wrote: “It may be doubted whether there are many other animals which have played so important a part in the history of the world, as have these lowly organized creatures”.

The soil of the food bowl states of our country viz. Punjab, Haryana, Western Uttar Pradesh and plains of Uttarakhand have become deficient in organic matter, macro and micro nutrients and trace elements. Now soil has become non living due to death of earthworms and beneficial micro organism. Farmers are using mainly nitrogen and phosphorus in crop production. However 17 elements are essential for plants nutrition for growing of crops. To get maximum yield and output from the crop plants, a vicious cycle of using the maximum amount of chemical amendments is going on. In the chemical amendments, indiscriminate use of both fertilizers and pesticides are included. Due to this indiscriminate use of these fertilizers and pesticides, our environment is being polluted and living organisms on this planet are experiencing the deleterious effects of all this on their health. These chemicals also exert their influence on soil flora and fauna, therefore the balance of macro and micronutrients release in soil is being disturbed and as a consequence soil fertility and productivity is decreasing day by day. Therefore, for sustainable agriculture healthy farming is fast becoming an urgent necessity.

The problems being faced are the destruction of the soil health leading to reduction in production potential, failure of pest control strategies due to the development of pesticide resistance, biomagnification of pesticides such as reside problems in food and water. The food grain produced and assessed with attributes of fertilizers, the fertilizer efficiency seems to be decreasing. In 1970-71 it was 17.1%, declined in 1980-81 to 10.3% and in 1988-89 reached to 8.1%. Now a day, farmers are not properly using organic, green and compost manures in crop husbandry. Soil fertility and ground water level has been declining very fast by adopting intensive farming. If soil health of any country has been depleted, then the food grain production will also tend to decrease.

One of the characteristics of the immune system is to recognize and discriminate self from the non-self antigens. But, sometimes, there is a failure to discriminate between self and non-self antigens in the body and an autoimmune response occurs. Body starts producing antibodies against its own cells/antigens. The self antigens against which the immune system responds are called autoantigens and the antibodies produced against self antigens are called autoantibodies.

3.1 Applications

Nanotechnology, with its ability to manipulate materials at the atomic and molecular scale, offers diverse applications across various sectors, including aquaculture. In this extensive exploration, we delve into the innovative applications of nanotechnology in aquaculture, focusing specifically on areas beyond water parameter control and disease prevention. This comprehensive review highlights how nanotechnology enhances feed efficiency, improves growth and health monitoring, develops novel materials, and addresses environmental and sustainability challenges within the aquaculture industry.

1. Introduction to Nanotechnology in Aquaculture

1.1 Understanding Nanotechnology

Nanotechnology involves the manipulation and engineering of materials at the nanoscale, typically ranging from 1 to 100 nanometers. At this scale, materials exhibit unique physical, chemical, and biological properties that differ significantly from their bulk counterparts. These properties make nanomaterials highly versatile for applications across various industries, including agriculture and aquaculture.

Seed testing

No matter how good processed seed may look, the actual value is the number of seedlings it will produce. Testing of seeds is therefore imperative to determine and identify the changes that have occurred from the time of collection until the seeds are sold or sown at one time. The critical step in evaluating a seed lot is the drawing of representative sample. Place all the test samples in a bucket, mix them thoroughly and subdivide to obtain sample size. Improvements in seed processing can only be obtained with quality control. These evaluations should be made in the processing plant and at a seed testing laboratory. The National Tree Seed Laboratories offers a free service to evaluate processing machinery. You need only collect a small sample of seed after it has been processed by each machine and send it to the laboratory. Be sure all the seed comes from the same lot so all samples are related. Each machine must be adjusted for efficient operation, and proper adjustment requires monitoring of the operation.

Descriptive Statistics of Independent Variable With Respect to Minimum, Maximum, Range, Mean, Standard Deviation of Values, Variance, and Coefficient of Variance:

Results: The variable age (x1 ) having the range between 20 to 62. So, the mean of the age (x1 ) variable is 38.64. Similarly, the other variables education (x2 ), family size (x3 ), family income (x4 ), risk factor (x5 ), management factor (x6 ), natural calamities (x7 ), employment status (x8 ), expenditure (x9 ), push factor (x10 ), pull factors (x11 ) have the mean 5.220, 4.720, 1.270, 0.505, 4.790, 3.875, 4.809, 5.655, 2.226, 5.613 respectively. Here, we see that distribution of variables education (x2 ) and push factor (x10 ) among the respondents are moderately consistent and residual distribution of variables among the respondents are highly consistent.

People all around the world have been conducting genetic association studies for a long time. Still the literature to practically understand the statistical analysis of such data using software packages is scarce. Statistical analysis of molecular data is a vast topic. So we will be undertaking one of the important basic and preliminary topics “Statistical analysis of genetic association studies among unrelated individuals” in this chapter. Overall, we will be discussing population association studies in which qualitative and quantitative data on unrelated individuals for various economic traits is collected and these individuals are also typed at a number of Single Nucleotide Polymorphism (SNP) markers. This excludes family-based association studies, admixture mapping or linkage studies. Various software packages used in this chapter to analyze molecular data of a population are given below in Table 1.

Vegetable occupy an important place in diversification of agriculture and have played a pivotal role in food and nutritional security of ever growing population of our country. The vegetable requirement of our country is estimated at 225 million tonnes by 2020 (Paroda, 2020) against only 134 million tonnes in 2009-10 (NHB, 2010). India is facing, today, with stagnation in crop productivity and slows down in agricultural growth. Declining soil health and fertility is considered as one of the factor for such a decline. The restoration of soil health and fertility is, therefore, a formidable challenge before us to ensure higher and sustainable productivity, profitability and national food and nutritional security.

An Overview of Parasitic Diseases in Asian Aquaculture

Parasitic induced diseases bring about significant economic losses in fish culture system. Estimated loss due to mortality and morbidity of fish due to parasitic infection is much more than that from microbial diseases. Protozoan ciliates (Ichthyopthirius, Trichodina) and flagellates (Ichthybodo, cryptobia) are some of the common ectoparasites of fish. Certain ectocommensal ciliates (Epistylis, Vorticella and Zoothamnium) attach to the external surface of fish leading to fouling. These protozoan ectoparasites are often associated with mortalities of younger stages of cultured fish. The situation becomes worst in water with low oxygen and high organic matter. Most extoparasitic protozoans have simple and short life cycle and reproduce by binary fission. Most protozoan ectoparasites are readily detected in direct microscopic examination of skin and gill scrapings. Histopathological changes in the integument following ectoparasitic protozoan infection are outcome of two counteracting cellular processes – hyperplasia of the epithelial cells, including mucus cells and chloride cells, versus a progressive cellular destruction. Cellular necrosis primarily occurs due to the feeding and attachment activity of the parasites. Generally, immersion therapy using suitable chemicals can control ectoparasitic protozoan infections

Disease caused by endoparasitic sporozoans are a serious threat to fish farms. These sporozoan spores present in the pond soil are normally ingested by the fish. The infective element of the spore (sporoplasm) is released in the gut. The sporoplasm reaches the target tissue using the vascular route. Once inside the target tissue, the vegetative trophozoites cause massive destruction of the target tissue and produce large spore containing cysts. There are two types of sporozoan infecting fish and shell fish namely myxosporidian and microsporidian. Myxosporidian occur in fish either as histozoic (intercellular tissue parasites) or as coelozoic (inside the lumen of various ducts and tubules) parasites. Microsporidians are intracellular obligatory parasites and lead to massive hypertrophy of infected cells (xenomas). There is no effective treatment for sporozoans. However, treating pond soil with chemicals and lime is the best option.