eChapters

Curriculum development and lesson planning are complex educational processes requiring alignment among learning objectives, competencies, instructional activities, assessment strategies, learner characteristics, and changing societal requirements. Generative AI offers new opportunities to support educators and curriculum designers in managing these processes more efficiently and intelligently. This chapter examines AI-augmented approaches to curriculum development and lesson planning, with emphasis on personalization, competency-based education, adaptive learning, and data-informed instructional design. Generative AI can assist in developing learning objectives, lesson sequences, teaching activities, question banks, assessment rubrics, case studies, and differentiated learning resources. It can also analyze student performance and recommend modifications to curriculum content, learning pathways, and instructional strategies. The chapter considers applications within Indian educational contexts, including curriculum alignment, digital platforms, low-bandwidth environments, and emerging institutional initiatives. It also discusses challenges such as teacher resistance, inadequate AI literacy, interoperability, infrastructure limitations, data privacy, and ethical concerns. Successful implementation requires human review and pedagogical judgment. The chapter ultimately presents AI as a curriculum co-design and teacher-augmentation tool capable of improving efficiency, personalization, scalability, and educational relevance.

Plants are exposed to microbial pathogens at all growth stages from seeds to harvested produce. But they are resistant to numerous pathogens that are present in the environment and susceptible only to some of them. In other words, a plant species has built-in resistance mechanism to avoid or resist the invasion by many microbial pathogens. A pathogen may reach several plant species, but it can infect only a few plant species in the particular location or region. The process of pathogenesis or disease development is initiated when the pathogen reaches the plant surface that allows the initiation of infection. An organism is able to derive its nutrition from the susceptible host plant and becomes pathogenic. The physiological functions of such infected plants deviate from those of the healthy (normal) plants and suffer irreversibly to different magnitudes. The organism adversely affecting the plant growth and other functions to obtain nutrition is the pathogen. It develops rapidly or slowly in proportion to the levels of susceptibility / resistance of the host plant to the pathogen species concerned. Thus a plant species may be susceptible to some pathogens, while remains resistant / immune to other organisms that may be pathogenic to some other plant species. Depletion of compounds from the plants to meet the nutritional requirement of the pathogen leads to different kinds of external symptoms and internal changes due to derangement of normal metabolic functions of the host plant. The process of disease development in a susceptible host plant species is known as pathogenesis.

The vulnerability of agriculture to climate change has become an important issue resulting in reduced productivity due to adverse climatic changes. The overall purpose is to assess farming systems change to enable adaptation to climate change. It deals with the predicted climate change scenarios and the adaptations necessary to reduce climate change impacts and examines improvement of indigenous breeds for adaptation to climate change. It also explores the use of crop modeling as avenues to address adaptations of crop production systems and draws the recommendations to outlines of future research needs.

Although the adverse effects of climate change are likely to be borne disproportionately by the small farmers of the developing world, it is the integrated farming systems with their high degree of biodiversity which are best equipped to withstand the shocks of climatic extremes. Apart from the landless and urban poor, small farmers are among the most disadvantaged and vulnerable groups in the developing world. It is obvious that climate-related environmental stresses are likely to affect individual households differently compared to more market-oriented farmers. The climate change reduces crop yields. The effects on the welfare of subsistence farming families may be quite severe, especially if the subsistence component of productivity is reduced. Changes in quality and quantity of production may affect the labour productivity of the farmer and negatively influence his/her family health(Rosenzweig and Hillel 1998).

The potential yield levels in major crops have reached almost to a plateau. The current world population of 7 billion is likely to reach 9 billion by 2050 putting huge pressure to produce more from the available arable lands as acreage of major crops is predicted not to increase any further. The deficit of food requirements will have to be met partly by bridging the gap between farm yield (the average yield of the crop in a particular region/country/world) and the potential yield (the yield obtained usually in the breeders’ plots grown across the region of interest with the best yielding new varieties and without biotic stresses as diseases and pests, and abiotic stresses such as drought, flooding, salinity, heat and cold and partly by increasing potential yield per se.

What is DNA

DNA is a simple molecule

DNA is negatively charged

DNA has lots of ring structures; ring structures are generally quite hydrophobic.

DNA is a very robust molecule.

DNA work has lots of toys.

Intelligent healthcare is advancing through the integration of multimodal data, trustworthy AI, federated learning, digital twins, IoT devices and real-time decision-support systems. This chapter reviews the evolution of healthcare-data analysis and examines emerging methods for intelligent diagnosis and predictive care. It discusses explainability, privacy-preserving analytics, interoperability, data governance and ethical frameworks necessary for responsible implementation. Wearable technologies and connected sensors support continuous monitoring, while human–AI collaboration improves clinical decision-making. Case studies illustrate practical healthcare applications and implementation strategies. The chapter also considers global-health requirements, particularly in developing countries, and identifies future opportunities for scalable, equitable, secure and clinically effective intelligent healthcare systems.

Abstract

Plant roots influence the biological, chemical and physical properties of rhizosphere soil. These effects are a consequence of their growth, their activity and the exudation of organic compounds from them. There is now considerable scope for the new ideas to be extended to the rhizosphere. The role of soil microorganisms in sustainable productivity has been well construed. In recent years, root inhabiting (rhizozosphere) bacteria (rhizobacteria) is gaining importance. The beneficial effects of plant growth promoting rhizobacteria (PGPR) has been variously attributed to their ability in improving the crop production, protection against phytopathogens, soil health and environmental quality. However, there is a need for isolation, identification and improvement of potent PGPR’s to utilize them ultimately as promising bio-inoculants. This review embodies some recent developments to evolve strategies for the better biotechnological exploitation of PGPR’s.

Abstract

Surveys made systematically in different remote places of Tamil Nadu brought to light more than 1000 indigenous techniques adopted for pest control in various crops of agriculture, horticulture and store grains. Target animals included array of insect species and animal pests namely rodents, mites, molluscs and microbes like nematodes and viruses. Various kinds of plant species reveal their modes of action distinctly.

A microarray, as the name suggests, is a two dimensional array of microscopic probes which captures certain molecules in an environment by a process known as hybridization, and are used to detect quantities of these molecules in the environment. The probes can vary according to requirement of experiment, and so can the environment, which in technical terms is an extract of tissue under study.

Solanaceae is a plant family that comprising of 2300 species and 85 genera of which, nearly one half of the species belongs to the genus Solanum. The genus Solanum includes both tuber bearing and tuber nonbearing forms. Among the tuber nonbearing forms, the major fruit vegetables growing throughout the world are tomato, brinjal and chilli. They prefer warm humid tropical climate for growth and development. Hence, the agroclimatic regions where this type of climate prevails is suitable for seed production of these vegetables. In addition to this, hybrid vigour has been widely commercially exploited in these crops because of easiness in emasculation and pollination and availability of large number of hybrid seeds per fruit.

Tomato (Solanum esculentum L.)

Tomato is the most important warm season vegetable growing throughout the world. The fruit is valued as salad vegetable and for cooking purpose. It is one of the vegetables from which, a wide variety of processed products are made. The crop is grown throughout the year in one part or other part of the country and it has become one of the indispensable fruit vegetables in our diet. It is rich in vitamin A, vitamin C, niacin, and minerals like calcium, phosphorus etc and it is rich in antioxidant, lycopene which is the carotenoid responsible for the red colour of tomato. Tomato is of recent origin, and it is the native of Peru in South America from where it spread to the entire part of the world.

Introduction

Farm mechanization is application of machine power to work on land, usually performed by animate and mechanical power. It is also defined as an economic application of engineering technology to increase the labour efficiency and productivity. However, it not only includes production, distribution and utilization of a variety of tools, machinery and equipment but also planting, harvesting and primary process. Mechanization has a major impact on demand and supply of farm labour, agricultural profitability and a change in rural dynamics.

Abstract

Photosynthetic blooms of toxin producing marine algae are often referred to as “red tides”. Proliferations of freshwater toxin-producing cyanobacteria are simply called “cyanobacterial blooms” or “toxic algal blooms.” Biotoxins of cyanobacteria are water-soluble and heat stable and they are released upon aging or lysis of the cells. The primary types of cyanobacterial biotoxins involves three types of toxins: hepatotoxins (microcystin; cylindrospermopsin and nodularin), which are taken up by the liver and cause weakness and anorexia (loss of appetite); neurotoxins (usually anatoxin and saxitoxin), which effect the nervous system and dermatotoxins (aplysiatoxin and lyngbyatoxin, LPS), which cause skin and mucous irritations upon contact. Unlike freshwater toxic algal blooms, marine algal toxins become a problem primarily because they may concentrate in shellfish and fish that are subsequently eaten by humans, causing syndromes known as paralytic shellfish poisoning/PSP (paralysis due to saxitoxin and gonyaulatoxins), diarrhetic shellfish poisoning/DSP (diarrhea due to okadaic acid) , amnesic shellfish poisoning /ASP(memory disturbances due to domoic acid), neurotoxic shellfish poisoning/NSP (paresthesia due to brevetoxin; also bronchial spasms). Coral reef fishes are the vectors of another algal poisoning, the ciguatera fish poisoning/CFP (paresthesia, warm-cold sense inversion etc., due to ciguatoxins and maitotoxin).

Duff and  Daly (2002) briefly describes the commonly found orchid diseases. These include the Bacterial soft rot caused by Erwinia carotovora, black leg or slow decline caused by Fusarium spp., petal blight caused by Curvularia eragrostidis [PseudocochlioBolus eragrostidis] and Alternaria alternata, top rot/shoot rot caused by Phytophthora parasitica, and stem rot caused by Sclerotium rolfsii [Athelia rolfsii].

Abstract

Biosurfactants (BS) are amphiphilic compounds produced by microorganisms mainly bacteria and are known to contain hydrophobic and hydrophilic moieties that play a major role in reducing surface tension (ST) and interfacial tensions between individual molecules. Chemically, BS is a complex molecules consisting of lipopeptides, glycolipids, polysaccharide protein complex, fatty acids and phospholipids. They are known for their biodegradability, low toxicity, and renewable nature.

The greenhouse effect is thought to be due to the absorption of solar infrared (IR) radiation by gases and the earth’s surfaces, which, as a result, is heated and then reemit IR radiation at low frequency with a high absorptive power. In fact greenhouse gases in the atmosphere are essential for maintaining life on earth, as without them the planet would be permanently frozen because all of the incoming heat from the sun would be radiated back into space by the earth’s surface (Moss, 1993). The threshold concentration of these gases at which their greenhouse effect would be minimized is not known, but it is accepted that their concentrations in the atmosphere should not be allowed to continue to rise. In recent years, there has been an increase in public concern over environmental damage originating from animal feeding operations.

Anatomy is the study of an internal structure of an organism, while morphology is the study of various external features of an organism Anatomy helps in knowing the structural peculiarities of different groups of plants, which help for adaptation to diverse environments. An angiosperm plant is characterized by the presence of roots, stems, leaves, flowers, and fruits

Plant cells: Plant cells are multicellular eukaryotic cells that make up a plant (a group of eukaryotes belonging to the Plantae kingdom, with the ability to synthesize their own food using water, sunlight and CO₂). Being eukaryotic cells, they have a defined nucleus with specialized structural organelles that enable it to function in an orderly manner.

Introduction
Currently, about 350,000 species of flowering plants have been described under global flora, but only a few of them have been rigorously screened for plant breeding parameters and systematic research accomplished in terms of varietal development. According to the Great Medical Encyclopaedia, medicinal plants are those used as a source of raw material for preparation of medicinal products of natural origin. Medicinal and aromatic plants occupy a pivotal position in the socio cultural, health care and spiritual arena of rural people of India. Medicinal plants contribute significantly to the rural livelihoods for their sustenance and income generation. Medicinal and aromatic plants are being used since ancient time for the treatment of many diseases in traditional and recognized systems of healthcare and for therapeutic, fragrance and flavoring products in pharmaceutical and cosmetic industries besides as sources of natural dye, fat, essential oil, biopesticide, resin, protein, vitamin, condiment, spice, timber, fiber and other useful substances. Medicinal and aromatic plants-based livelihood systems are often mediated by the market forces and/ related directly to employment and income of the poor people.
Based on the research work carried out by International Development Research Centre (IDRC) in South Asia, MAP and other biodiversity-based livelihoods can not only become poverty alleviating but also been made socially equitable and gender balanced. According to the World Health Organization, 80% of people from developing countries depend mainly on traditional medicine for primary health care. India is one of the worlds’ richest sources of medicinal plants comprising of nearly 45,000 species, of which nearly 100 species find major commercial use as per the statistics of National Medicinal Plant Board, New Delhi. In 2017, the estimated global market value of herbal medicine and herbal supplements was in the region of $107 billion (Yao et al, 2019), and not surprisingly, the substantial demand and consumption of these products have resulted in shortages, and in some cases even the exhaustion, of several medicinal plant resources, leading to habitat destruction and the loss of genetic diversity.
Plant secondary metabolites specific to each medicinal herb are derived from the precursors obtained from the primary metabolic processes related to one plant species or related group of species. These metabolites protect plants against plants being eaten by herbivores or being infected by microbial pathogens. They serve as attractants for pollinators and as agents of plant-plant competition and plant microbe symbioses. The rise of chemical taxa of medicinal and aromatic plants can be considered as consequence of biochemical and metabolic processes mostly under genetic control. It is assumed that differentiation of cell is mostly manifested in chemo-differentiation at a molecular level and the fundamental differences of protein present in an organism, between different enzyme systems. Moreover, the identity of a medicinal plant is attributed to the dissimilarities in their metabolic profiling intra specific chemical adaptations influenced by the ecological and geographical conditions. This discrete chemical difference is known as poly chemism that occur in autogamous species like medicinal and aromatic plants

Crop Water Requirements

In designing an irrigation system, the primary objective is to know the water requirement of crops. Water requirement of crops are determined either by f ield cultivation or by estimation through commonly used empirical formulae such as Blaney Criddle, radiation, Penman or pan evaporation method.

Definitions

Crop water requirement or evapotranspiration (ETcrop ): It may be defined as the rate of evapotranspiration of a disease free crop growing in a field of not less than one hectare under adequate fertility and water supply so that full productive potential can be achieved in prevailing environment. Evapotranspiration requirement of a crop refers the ETcrop and expressed in mm/day.

Reference crop evapotranspiration (ET0 ): It is the rate of evapotranspiration from an extended surface of 8 to 15cm tall green grass of uniform height, actively growing, completely shading the ground and not short of water. ET0 may be computed by using the empirical formulae and meteorological data for the specific period.

SUMMARY

Fertigation is the injection of concentrated soluble nutrients into irrigation water to enhance crop production. It is used extensively in commercial agriculture and horticulture. In combination with micro-irrigation (drip irrigation), this technique forms an efficient method for precisely applying nutrients close to the crop root zone, especially when a polyethylene mulch is used. Fertigation is used to spoon feed additional nutrients or correct nutrient deficiencies detected in plant tissue analysis and usually practiced with high value crops such as vegetables, turf, fruit trees, and ornamentals. Water supply for fertigation kept separate from domestic water supply to avoid contamination. Fertilizing fruit and vegetable crops requires a delicate balance between yield, quality, and environmental impact. Fertigation increases response to nitrogen (N) and provides greater opportunity to control rates to optimum levels to the root zone. Providing nutrients through the irrigation system enables more flexibility in a fertilizer program. Several types of irrigation systems are available for use in crop production. For any system used, approved backflow control valves and interlock devices are necessary to prevent accidental contamination of the water source due to irrigation system failure or shutdown.