eChapters

Introduction

Agricultural production is necessary to fulfil nutritional requirements for human populations and global food security. The agricultural sector also forms the economic backbone of many low-income countries in which millions of farmers are employed (Anushka et al, 2022). However, managing agricultural production to achieve multiple objectives of providing food, supporting livelihoods and protecting biodiversity and forests is a challenge especially in tropical, low-income countries (Anushka et al, 2022). Usually, the growth in global agricultural production is largely driven by commercial and export oriented commodities. One such agricultural commodity that has high global demand is cashew (Anacardium occidentale L.). Cashew is presently cultivated in 33 countries including India in the world. Global land area for cashew cultivation between 1980 and 2018 has seen an eleven-fold increase from 526,250 ha to 5,972,724 ha (Anushka et al, 2022).

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 aquaculture practises carried out in open environments (e.g. ponds, cages and pens), natural interaction between the culture and non-culture species, where the culture species are been fed by the non-culture species (predation) can occur, causing significant economic loses (Ross, 1988). As many as thirteen different predators are considered to cause loss or damage on salmon farms in Scotland alone among which cetaceans are notable. Seals, sea lions, aquatic birds, dolphins, whales, otters, crabs, starfish, snail, snakes, rats etc are generally considered as predators (SSGA, 1990; Miron et al., 2005), but cetacean species are not notable predators within salmon farms. It is necessary to develop an environment friendly and economically feasible methods or technologies to limit the useless natural interaction. Manual chasing away or removal of predators, usage of scarecrows, anti-predatory nets, covering nets and increasing the tension of nets are some methods used to prevent predations in different aquaculture scenarios.

Acoustic Deterrent Devices (ADDs) otherwise called as Acoustic Harassment Devices (AHDs) help to prevent predation as they produce strong underwater noises (sound waves) that disturb and scare off the predators (Gordon & Northridge, 2002). AHDs are comparatively higher energy output devices than ADDs that operate at a power level of above 185 dB re 1µPa @1m. However, as the hearing threshold of different predators differ, the term “ADDs” are generally used for those that are efficient to deter the predators irrespective of their operating power levels (Götz & Janik 2010). One of the first usage of different unspecified sounds (eg: killer whale’s recorded voice) to deter predators (seals) were during the 1970s and no sounds were then found efficient in a long-term run (Anderson and Hawkins, 1988). Later through the 1980s, the precursor of modern ADDs (175-210 dB re 1uPa @1m) that emit out sound waves of frequency range (8-17 kHz), which is similar to the predator’s (seals) most sensitive hearing range were developed (Mate et al.,1987).

Post-traumatic bleeding, caused by accidents or battlefield injuries, is a major worldwide issue due to the associated high fatality rate. Significant efforts have been made to develop hemostatic medications that help reduce post-traumatic bleeding. The use of naturally abundant and highly biocompatible polymers, such as alginate, can have a substantial impact on the efficacy, safety and cost effectiveness of hemostatic medicines.We haveexaminedthe effectiveness of developed hemostatic hydrogel (SA-CZ) containing calcium (Ca2+) and zinc (Zn2+) in treating low-pressure bleeding wounds with the added benefit of promoting faster wound healing. The hydrogel nature of the hemostatic formulation poses limitation as hemostatic material due to its fluid absorption capability. Therefore, we converted the formulation in the form of dry formulation. Further, we explored the use of dry hemostatic particles (SA-CZ DHP) made from sodium alginate supplemented with Ca2+ and Zn2+ to manage excessive blood loss after post-traumatic hemorrhage.SA-CZ DHP showed substantial in-vitro efficacy, as observed by the significant reduction in coagulation time with better blood coagulation index (BCI) and no evident hemolysis in human blood. SA CZ also showed enhanced cellular migration (1.58-fold) in-vitroand improved wound closure (≈70%) as compared with betadine (≈38%) at the 7th-day post-wound creation in-vivo (p<0.005).The safe SA-CZ DHP showed high absorption and accelerated blood clotting kineticswith reduced coagulation time (≈70%, p<0.0001) in whole human blood. SA-CZ DHP significantlyreduced the mean blood loss (≈90% in SD rats tail incision), and bleeding time (≈60%in BALB/c mice tail incision) was at par with commercially available Celox™hemostatic granules.

The pandemic in 2019-2022 spread swiftly and became global in no time, caused by SARS-CoV-2. Vaccines were rapidly developed against the virus to restore public health and save global economy. Vaccines for immunisation drives were developed in a year of the pandemic becoming global and approved for ‘emergency use’ following expeditious development protocols. Vaccine development employed numerous nucleic acid, adenovirus and protein-based state-of-art molecular platforms, alongside the conventional attenuated and inactivated virus approaches. The majority of the attempts were successful and approved for use. All the approved vaccines were found safe and effective as per Phase I through Phase III clinical trials’ results. Mass immunisation drives demonstrably led to reduced hospitalisation, low disease severity and less mortality. Yet, there were initial vaccination hesitation across the world due to associated safety concerns about its possible long-term negative consequences. A part of it was attributed to technical reasons (as clinical trials were not fully complete with sturdy and convincing outcomes), and a majority was due to the misinformation that floated on the social media and other digital communications. Vaccine deployment across the globe was far from being equitable. Thus, immunisation was rapid in higher income (developed) nations with access to innovative advanced vaccines while low immunisation rates were seen in the low- and medium-income countries accessing majorly the vaccines based on simple technology. Given the scale and spread of the pandemic, scaled-up vaccine production and equitable distribution to limit viral spread and improve global health and socioeconomy were critical. This chapter attempts to dissect these scenarios and lessons learnt from these to prepare better for any such pandemic in future.

Technology Assessment and Refinement
What is Technology Assessment?
Technology assessment serves as a method or tool for forecasting future technological needs. It helps in envisioning or predicting potential technological developments required by users and in identifying areas where existing technologies can be improved. In agriculture, evaluating a technology means understanding its worth or effectiveness. This evaluation can be done by researchers, farmers, or other relevant stakeholders. The knowledge obtained from such evaluations is essential for creating new technologies, improving existing ones, and ensuring their successful adoption by end users.
The approach to technology assessment varies depending on who is conducting the evaluation, the purpose behind it, and the specific characteristics of the technology being assessed. It is commonly defined as the organized and intentional use of knowledge, skills, and experience to carry out a task or deliver a service that contributes to the well-being of society.
Technology Assessment: Definition and Objectives
According to Strasser (1972), technology assessment is a structured approach to planning and forecasting that identifies various options and associated costs. It considers not only economic factors but also environmental and social impacts, both internal and external to the technology being evaluated. The assessment places emphasis on analyzing both the positive and negative consequences of technologies. As such, institutions involved in the development, refinement, and dissemination of agricultural technologies have a significant stake in conducting technology assessments.

Carnation (Dianthus caryophyllus L.) belonging to the family Caryophyllaceae is very remarkable as a cut flower crop all over the world. It is well known for its attractive flowers with fragrance and varying colors. In India, the area under its cultivation is 2190 ha with a production of 8940 tones. But its production is affected by a number of insect pests and spider mite.
It is the two spotted spider mite or red spider mite which is considered as one of the most serious pests of carnation. High temperatures and low relative humidity favor the multiplication of these mites. These mites are found to be persisting throughout the year under polyhouse conditions.
Host range
Citrus, grapes, apples, pears, tomatoes, okra, potatoes, eggplant, beans, cucumbers, peppers, roses, jasmine, tea, coffee etc.

Introduction
Generally, muscles and offals obtained from animals feeding on grass and various other cultivated crops are regarded as meat. Apart from the meat obtained from the cattle, sheep, goat, pig and poultry, in many countries particularly Denmark, Belgium, Holland and Germany, horse meat is also consumed (hippophasia) as normal meat. Kangaroos are slaughtered for meat in Australia whereas capybara a large semi-aquatic vegetarian rodent, is used in South America as of one of the meat source. Dog meat (fragrant) is relished (Kinophasia) in few cultures such as South Korea, China, Vietnam and few north eastern states of India.
In many parts of the world including Indian subcontinent, buffalo meat (Bubalus bubalis), also known as water buffalo or arna, is quite popular owing to its tenderness, leanness and low cholesterol qualities. It is distributed in many countries around the world such as India (largest population), Pakistan, China, Bangladesh, Indonesia, Philippines, Hungary, Italy and France etc. Bison (Bison bison) from North America is also called buffalo but they are separate species of the order Bovidae. Rabbits are also source of meat having higher growth rate and better feed conversion ratio (2:1). Elands are another meat source which are raised in Africa and Russia for meat purpose.
Meat is quite high in protein content but the presence of saturated fat is perceived negatively due to its association in various cardiovascular diseases, diabetes etc. Efforts are made to produce lean meat having higher content of unsaturated fatty acids and to reduce the ω-6 to ω -3 fatty acids ratio.

a) Transformation towards Commercial Agro: The poultry sector in India has experienced a revolutionary shift in structure and operation, which has led its transformation from a simple backyard activity to a major commercial agro based industry over a period of decades.
b) Layer Farming: The production of eggs has increased from 1.83 billion numbers in 1950-51 to 103.32 billion numbers in year 2018-19. The per capita availability reached at 79 eggs per annum in the year 2018-19 from 5 eggs per annum in year 1950-51. Andhra Pradesh, Tami Nadu and Telangana contributes about 55 percent share in total egg production.
c) Broiler Farming: Chicken meat contributes to 50 percent share in total meat production in year 2018-19 with the production of 4.06 million tonnes production. Broiler production is mainly concentrated in
Maharashtra, Haryana, West Bengal, Tamil Nadu and Andhra Pradesh. Broiler farming is mainly done through contract broiler farming. In that the integrator provides inputs such as chicks, feed, medicines and
vaccines. The contract farmer provides labour, shed, electricity, water, litter material, and other miscellaneous services or equipment that may be required. The integrator bears the transportation cost, investment and marketing risks. 

Routine maintenance forms the foundation of effective and sustainable aquarium care. It encompasses a range of scheduled activities designed to maintain cleanliness, chemical stability, and a healthy environment for aquatic life. Whether managing a small home tank or a large public display, failure to perform regular upkeep can cause water quality to deteriorate quickly, potentially leading to stress,
illness, or even the death of fish and plants.
Common maintenance routines include partial water changes—typically 10–30% on a weekly or biweekly basis—along with cleaning the substrate and tank decorations to remove waste and leftover food. Filters should be regularly inspected and cleaned to maintain proper flow and filtration. Additionally, both the inner and outer surfaces of the glass should be cleaned to eliminate algae and ensure clear viewing.
Water testing is another critical aspect of maintenance. Key parameters like ammonia, nitrite, nitrate, pH, temperature, and oxygen levels should be routinely checked using appropriate test kits. Identifying imbalances early helps prevent serious water quality issues.
Health monitoring of fish and plants is also important. Watching for changes in behavior, eating habits, color, or signs of distress enables early diagnosis and treatment. For planted tanks, this might include trimming overgrowth, replanting, or adding fertilizers as needed.
Sticking to a consistent maintenance schedule not only keeps the tank clean but also extends the life of your aquarium’s inhabitants and equipment. It supports a stable and thriving aquatic environment where natural biological cycles can operate effectively.

Introduction
By 2050, experts anticipate the world’s population will surpass 9 billion, resulting in a 70 percent increase in the need for food, feed, and fiber. This increase will coincide with significant lifestyle and consumption shifts primarily driven by urbanization. A notable decline in the consumption of grains and pulses is anticipated, while there will be a marked increase in the intake of vegetables, fruits, meat, dairy, and fish. With its long-standing contribution to human nutrition, aquaculture is key in supplying high-quality proteins (Nash 2010; Gui et al., 2018). As the population grows, resource scarcity and environmental degradation become increasingly urgent. The necessity for land resources to meet societal demands has turned attention toward oceans as a critical frontier for human survival. Fish, in particular, are emerging as an important source of high-quality protein for the human food (Baiden et al., 2007). Over the last few decades, aquaculture has developed into the very fastest developing in the agricultural sector. In 2020, fisheries production surpassed 60 percent of what was recorded in the 1990s, driven
by an unprecedented aquaculture output of 122.6 million metric tons (MT (FAO 2022). Given this context, aquaculture and fisheries are expected to be pivotal in ensuring global nutritional security (Subasinghe, 2017). Fish provide around 20% of the world’s animal protein, serving as a healthy option for wealthier populations due to their high polyunsaturated fatty acid (PUFA) content. Simultaneously, small indigenous fish species are vital for the nutrition of lower socioeconomic groups, offering essential proteins, oils, vitamins, and minerals (Mohanty et al., 2010). Worldwide, the fishing and aquaculture industries play a crucial role in enhancing nutrition and sustaining economies. These sectors provide vital nutrients to approximately 3 billion individuals and constitute more than half of the animal protein consumed by 400 million people in economically disadvantaged areas. Fisheries and aquaculture play a crucial role in the livelihoods of over 500 million individuals in developing nations. The growth of aquaculture has been particularly noteworthy, with an annual growth rate of 7%, and fish products account for over 37 percent of the global food trade by volume. As wild fish stocks continue to decline, the cultivation of aquatic species, such as fish, crustaceans, mollusks, and aquatic plants, has become a cornerstone of the global seafood supply. As concerns rise over future food shortages and increasing prices, Fish farming and other forms of aquaculture serve as dependable sources of vital nutrients and protein, playing a significant role in enhancing global food availability and supporting efforts to combat malnutrition worldwide. Furthermore, the sector fosters promoting rural development by creating employment opportunities and enhancing local economic initiatives .In response to the rising demand for aquatic products, significant increases in aquaculture production will be necessary. Biotechnology offers a range of tools to facilitate the sustainable growth of aquaculture, fisheries, and the broader food sector. With the growing public demand for seafood and the degradation of marine habitats, researchers are increasingly focused on biotechnological solutions to enhance marine food production. This positions aquaculture as a rapidly evolving field of research (Melamed et al., 2002). Through biotechnology, researchers can identify and merge genetic characteristics in aquatic organisms to enhance their productivity and quality. Current research emphasizes identifying genes that enhance natural growth

INTRODUCTION
Transmission is a mechanism designed to reduce speed, consisting of multiple gears. It functions as a series of gears and shafts that transmit engine power to the tractor wheels. This system includes various components that enable both forward and reverse movement of the tractor, adapting to different field conditions. The entire route through which power flows from the engine to the wheels is referred to as the power train.
FUNCTIONS OF THE POWER TRANSMISSION SYSTEM
1. To transfer power from the engine to the tractor’s rear wheels.
2. To provide reduced speeds to the rear wheels as required.
3. To adjust the ratio between wheel speed and engine speed to match varying field conditions.
4. To facilitate power transmission through a right-angle drive, as the crankshaft and rear axle are typically positioned at right angles to each other.
The power transmission system is composed of several components: clutch, transmission gears, differential, final drive, rear axle, and rear wheels. Together, these components ensure the effective transmission of power.

In the contemporary academic sphere, the demands placed upon faculty members have grown increasingly complex, requiring a multifaceted skill set that goes beyond subject matter expertise. A truly effective faculty body is characterized by several key attributes and supported by institutional mechanisms that foster growth and accountability.
7.1. Effective Mentorship
• The Indispensable Nature of Communication Skills: Exceptional communication skills form the bedrock of effective teaching and mentorship. Faculty must possess the ability to articulate complex ideas with clarity and precision, adapting their communication style to suit diverse learning needs and preferences. This includes not only lucid lecturing but also active listening, providing constructive feedback, facilitating engaging discussions, and utilizing various communication technologies effectively (Fig.7.1). Strong communication fosters a positive and inclusive learning environment, enabling students to grasp concepts more readily, ask pertinent questions, and feel comfortable expressing their thoughts and challenges. Moreover, effective communication extends to interactions with colleagues, administrative staff, and parents, ensuring a cohesive and collaborative educational ecosystem.
• Unwavering Commitment to Student Welfare: Faculty commitment to student welfare transcends the traditional boundaries of academic instruction. It encompasses a genuine interest in the holistic development of students, encompassing their academic progress, personal growth,

Mutation
Definition: “Mutation is the change in our DNA base pair sequence due to various environmental factors such as UV light, or mistakes during DNA replication.”
What Are Mutations?
The DNA sequence is specific to each organism. It can sometimes undergo changes in its base-pairs sequence. It is termed as a mutation. A mutation may lead to changes in proteins translated by the DNA. Usually, the cells can recognize any damage caused by mutation and repair it before it becomes permanent.
A mutation is a sudden, heritable modification in an organism’s traits. The term “mutant” refers to a person who exhibits these heritable alterations. Mutations usually produce recessive genes.

3.1 Introduction
The different moulding machines are listed below.
• Thermoforming moulding
• Injection moulding
• Compression moulding
• Transfer moulding
• Extrusion moulding
• Blow moulding
• Rotational moulding
• Hydroforming
• Laminating
The melting furnaces, which feed molten metal to fill mould cavities are listed below.
• Cupola furnace
• Induction furnace
• Open hearth furnace
This chapter presents the different moulding machines and melting furnaces.
3.2 Thermoforming Moulding
To develop unique packaging solutions, thermoforming is the process of stretching a heated plastic sheet over a mould, then trimming, and assembling the design once the sheet has cooled as shown in Fig.3.1. The hot thermoplastic is stretched over the surface of the mould using the two thermoforming processes, viz. vacuum forming and pressure forming. A thermoforming machine is a sizable piece of industrial machinery that allows us to vacuum-form a plastic sheet onto an object as the sheet is being moulded. Thermoforming machines are used and benefited by a variety of businesses to efficiently package their products. The material used to produce parts by thermoforming machines is thermoforming plastic. Numerous thermoforming polymers are available for use in particular applications.

Nanotechnology has emerged as a transformative interdisciplinary field, enabling the design and manipulation of materials at the nanoscale with exceptional physical, chemical, and biological properties. Nanoparticles (NPs), the most fundamental components of nanotechnology, exhibit unique size-dependent characteristics such as high surface area-to-volume ratio, enhanced reactivity, and tunable functionalities that make them valuable in diverse applications including agriculture, medicine, and environmental management. This chapter provides a comprehensive overview of the classification, synthesis, and characterization of NPs. NPs are categorized based on origin, composition, dimensionality, and morphology, encompassing organic, inorganic, and composite forms. The synthesis of NPs follows two major approaches—top-down and bottom-up—employing physical, chemical, and biological methods. Conventional techniques such as ball milling, laser ablation, and chemical reduction are discussed alongside emerging green synthesis strategies that emphasize sustainability and biocompatibility. Characterization techniques including UV–Visible spectroscopy, DLS, SEM, TEM, FTIR, XRD, and AFM are highlighted for determining nanoparticle

Crop diseases are a significant threat to agricultural production worldwide, posing a major challenge to food security, economic stability, and environmental sustainability. These diseases, caused by a variety of pathogens including fungi, bacteria, viruses, and nematodes, can have devastating effects on crop yields, quality, and overall plant health. The causes of crop diseases are complex and multifaceted, involving a combination of factors such as environmental conditions, plant susceptibility, and pathogen characteristics. Climate change, soil degradation, and water scarcity can all contribute to an increased risk of crop disease outbreaks. Additionally, the widespread use of monoculture farming practices, which involve the cultivation of a single crop species over large areas, can lead to a loss of genetic diversity and increased vulnerability to disease. The consequences of crop diseases are far-reaching and can have significant impacts on agricultural production, food security, and the environment. According to the Food and Agriculture Organization (FAO) of the United Nations, an estimated 20-30% of global crop production is lost to pests and diseases each year, with crop diseases accounting for a significant proportion of these losses. This translates to billions of dollars in economic losses and millions of tonnes of food lost, exacerbating food insecurity and poverty, particularly in developing countries. In addition to the economic and food security impacts, crop diseases can also have significant environmental consequences. The use of chemical pesticides and fungicides to control disease outbreaks can pollute soil, air, and water, harming beneficial organisms and ecosystems. Furthermore, the development of pesticideresistant pathogens can lead to the use of even more toxic chemicals, perpetuating a cycle of environmental degradation. In this chapter, we will explore the causes and consequences of crop diseases in greater detail, examining the complex interplay of factors that contribute to disease outbreaks and the impacts of these outbreaks on agricultural production, food security, and the environment. We will also discuss strategies for managing and controlling crop diseases, including the use of resistant crop varieties, integrated disease management (IDM) practices, and sustainable agriculture approaches.
3.1 Symptoms of Crop Disease
Crop disease refers to any abnormal condition or disorder that affects the health and productivity of crops, including plants, trees, and other vegetation.

Lifespan development examines the physical, cognitive, linguistic, emotional, social, moral and personality changes that occur from conception through old age. This chapter evaluates essential concepts related to prenatal development, infancy, childhood, adolescence and adulthood. It includes developmental stages and tasks, heredity and environment, motor and language development, emotions, play, learning, perception, personality and major psychological theories. Questions address the contributions of Freud, Erikson, Piaget, Pavlov, Skinner, Havighurst and other influential thinkers. The chapter also covers childcare, discipline, parenting, developmental assessment and legal safeguards, enabling learners to revise the fundamental principles governing human growth and behaviour across the lifespan.

Hydrological cycle involves four major steps, Viz., Evaporation, Transpiration, Condensation and Precipitation. Though the cycle has neither a beginning nor an end, the concept of cycle begins with the water of oceans, since it occur nearly ¾ of the Earth’s surface. Radiation from the Sun, evaporates water as water vapour from the oceans into the atmosphere. The water vapour rises and collects to form clouds. Under certain condition, the cloud moisture condenses and falls back to the Earth as rain, snow, hail etc. Precipitation reaching the Earth surface may be intercepted by vegetation or enter into the soil, may flow as run-off or may evaporate.

Evaporation may be from the surface of the ground or from free water surface. Transpiration may be from plants.

Condensation: The physical process by which a vapour becomes a liquid or solid – opposite of evaporation.