eChapters

3.1 Control statement in python

Python statements are executed one by one in the same order as they appear in the program. But there may be some requirement when we want to execute the statements based upon a condition. Even there may be some situation where we want to execute a single statement or multiple statement (block of statement) “n” times till the condition is true. So in order to control the flow of execution of the program python provides us control statements.

There are two types of control statements:

(a) Selection statement

(i) if

(b) Looping condition

(i) While (ii) for

Introduction

In order to cater to the nutritional needs of a rapidly growing population, it is imperative to increase food grain production on the same land while maintaining the soil’s productive capacity. This necessitates comprehensive research to establish a scientific foundation for enhancing and sustaining food production and soil productivity with minimal environmental impact (Rathore et al., 2010). Balanced nutrition extends beyond the application of nitrogen, phosphorous, and potassium in specific quantities through fertilizers. It entails ensuring that the soil contains the right proportions of available nutrients to meet the crop’s requirements for optimal yield (Rathore et al., 2010).

Introduction

Precision farming, also known as precision agriculture, prescription farming, and site-specific farming, is grounded on the principle of managing fields based on their heterogeneity (Nowak 2021). In the past, crop management decisions were made for the entire field, treating it as a homogenous unit, despite significant variations in soil characteristics, weed infestations, and plant growth within a field (Nowak 2021). Precision agriculture integrates modern technology with past experience to manage farming on a grid-by-grid basis (Nowak 2021).

Traditionally, Labour Laws have a protective function consisting of established standards both to protect workers in their workplace and to provide them a basic minimum level of living conditions. Alongwith this function, there also existed in most systems, a legal framework for the regulation of industrial relations between employers and workers. These functions had their impact on problems of development. The emphasis was more on labour legislation for its own sake, development being a separate proposition. This mutual lack of concern was perhaps due to historical factors. The most important aspect is the fact that in developed countries of the Western world, labour legislation followed the emergence of industrialization and in response to a demand for economic and social betterment of the workers, whereas in developing countries the emergence of labour laws preceded industrial growth.

ABSTRACT

Satellite-based hyperspectral imaging became areality in November 2000 with the successful launch and operation of the Hyperion system on board the EO-1 platform. Hyperion is a push broom imager with 220 spectral bands in the 400-2500 nm wavelength range, a 30 meter pixel size and a 7.5 km swath. Prelaunch characterization of Hyperion measured low signal to noise (SNR<40:1) for the geologically significant shortwave infrared (SWIR) wavelength region (2000- 2500 nm). The impact of this low SNR on Hyperion's capacity to resolve spectral detail is studied for the Musiri and Tattayyangarpettai regions of part of Namakkal and Tiruchirapalli districts of Tamil Nadu state, India which comprises a diverse range of minerals with narrow, diagnostic absorption bands in the SWIR. Following radiative transfer correction of the Hyperion radiance at sensor data to surface radiance (apparent reflectance), diagnostic spectral signatures were clearly apparent including: green vegetation; talc; dolomite; crystalline limestone, chlorite; white mica and sericite. Though the derived surface composition maps generated from these image endmembers were noisy (both random and column), the spatially coherent and correlated well with the known geology. The interpreted and processed mineral map is given below. In addition, the Hyperion data were used to measure and map spectral shifts of <10 nm in the SWIR related to white mica chemical variations.

Maize is a miracle crop and is popularly known as “Queen of Cereals” due to its very high yield potential. It’s a leading crop worldwide in terms of area, production and productivity and is suitable to diverse agro-climates. Its extent of adaptability is unmatched by any other crop. Due to this adaptability to diverse climates, maize had been grown by many generations in different parts of the world. Earlier, the primary utilisation of maize was focused towards human consumption and even today it is a staple food of many underprivileged societies especially in African countries and certain tribal pockets in India. It is playing an important role as a cheap source of carbohydrate in daily meals due to high productivity and wider adaptability. With the passage of time the productivity increased due to conscious selection towards high yield by farmers and researchers. This enhanced production and productivity opened new doors of utilisation of this wonderful crop. Maize found its place as a feed crop for economically important anima ls like chicken and swine. This shift towards feed industry got encouragement by change in the food habits of people. Looking at the recent consumption pattern of maize as a food crop displays declining trend. As per a NSSO survey (2014) maize consumption in rural areas in India has seen a decline of around 35% from 3.7 kg/year in 2004-05 to 2.4 kg per year in 2009-10, and further declined to 1.56 kg during the year 2011-12. Continued efforts towards yield enhancement and decline in human consumption made its way to utilise surplus maize in economically viable industrial products. Maize is a crop where every part of its plant can be utilised to produce food and non-food products. Oil, starch, glucose, dextrose and sorbitol are few important products produced by processing of maize grains. Apart from these, maize has been very widely used for production of ethanol which is used as a fuel in many developed countries. Direct utilisation of maize grains in poultry and other feed industries is on the rise with increasing demand of such foods. Maize oil is of high quality and is being widely used in developed countries. Maize is a major source of industrial starch which finds its way to diverse utilization such as food and beverage, pharmaceutical, textile, paper and other industries. Processing of maize is done by two ways- Dry Milling and Wet Milling. Wet milling produces starch, gluten and husk and Dry Milling produces corn meal, germ, grits and animal feed. Apart from these processed products, maize is also being developed to be utilised as a biopharmaceutical crop. Maize crop is being bioengineered to extract products of therapeutic and medicinal importance. Such a diverse utilisation of maize has generated a necessity to improve morpho-physiological traits which are important with respect to its industrial utilisation. In the present chapter, we will discuss various aspects of maize improvement for industrially important traits which will include oil, starch, methionine, biofuel and biopharmaceuticals.

The concept of gene has undergone several refinements since its discovery in 1866 by Mendel. Most genes encode one polypeptide and can be operationally defined by the complementation test. The complementation or cis-trans test provides an operational definition of the gene. It is used to determine whether mutations are in the same gene or in different genes. Intragenic complementation may occur when a protein is a multimer containing at least two copies of one gene product. The concept of gene has evolved from a bead on a string, not divisible by recombination or mutation to a sequence of nucleotide pairs in DNA encoding one polypeptide chain. The unit of genetic material not divisible by recombination or mutation is the single nucleotide pair. Historically several experimental developments have occurred to facilitate understanding of the structure and function of gene and these are briefly described in a chronological order as follows to have better understanding of the gene concept as it evolved. However, before discussing evidences supporting various gene concepts, it is better to summarize important stages in the evolution of the gene concept.

Overview of Recreational Fisheries in India with Special Emphasis on Kashmir Valley
Sport fishing, often referred to as Recreational fishing is fishing for fun or competition. It differs from commercial or subsistence fishing which targets for profit or fishing for survival respectively (Mandal et al., 2016). As per FAO (2012), recreational fishing is fishing of aquatic animals (mainly fish) that do not constitute the individual’s primary resource to meet basic nutritional needs and are not generally sold or otherwise traded on export, domestic or black markets. It is one of the most adventurous things in the world. In the simplest form, sport fishing involves using rods, lines, hooks and bait or lures to attract and catch the fish (Mandal et al., 2016). The fighting attributes of the target species leads to the sport of the fishermen in Sport fishing. Even though the sport fishing seems to be limited in the freshwater ecosystems it is extended to the marine waters also. Sport fishing involves catching of fishes which require skills as well as knowledge regarding the behaviour and food preferences of the target species. Sport or game fish are the targeted species that are caught by rods and lines and not released back into the water by the hobbyist or fishermen in disgust. However, releasing the catch to the environment should be a prerequisite for sport fishing considering the ecological and conservation point of view. In sport fishing, the target fish is played by the hobbyist until the fish is landed or lost (IGFA, 2016). According to Mandal et al. (2016), sport fish can be categorised into 2 group namely Small and Big. The fish which as less than 50 kg are grouped as the small ones like mahsser, trout etc. whereas fish weighing more than 50 kg are grouped as big ones like Goonch catfish. Fishing is an old age practice and fishing by hooks and line is the primitive form. Fishing purely for fun and releasing caught fish is a much more modern development. Although it is not possible to clearly state when fishing was first said to be recreational, the book titled ‘The Complete Angler’ by Izzak Walton in 1963 described recreational fishing for the first time. In India, King Somesvara’s (1127 AD) has mentioned about recreational fisheries (Matsyavinoda) in his treatise “Manasollosa” (Hora, 1951). With the record and description of mahseer from Ganges in the early 19th century, soon it became popular as an angling species through the efforts of the Oriental Sporting Magazine (Nautiyal, 2014). In the meantime, many different authors have pointed out about angling in India and highlighted about the sporting fishes.
British anglers have introduced first-time brown trout (1860s) and rainbow trout (1909) in streams and rivers of the Himalayas and Western Ghats (Sehgal, 1999a, b). Although recreational angling struggled to maintain its

Soil organisms play vital role in agri-ecosystem processes such as nutrient cycling, soil detoxification and organic matter decomposition. They also influence water infiltration by improving soil porosity through production of polysaccharides. Rhizosphere microorganisms help plant to acquire macro and micronutrients, produce phytohormones for better crop establishment. Soil microbes process organic matter to provide a balance of minerals and nutrients which are utilized by plants to achieve healthy and vigorous growth. Microbes also colonize on plants parts and offers protection by excluding many plant pathogens. They are the basic indicators of soil fertility and are responsible for maintaining a hospitable environment for crop growth.

Precision farming is one of the most scientific and modern approach to sustainable agriculture. It involves management of within field variation and helps farmers to grow crops more efficiently. Precision farming is concerned with the management of variability in the dimensions of both space and time. Variability of resources is a key factor of precision farming.   Precision farming is the application of technologies and principle to manage spatial and temporal variability associated with all aspects of horticultural production for improving crop performance and environment quality. Precision farming calls for an efficient management of resources through location specific hi-tech inventions to produce cost-effective and eco-friendly consumer- acceptable quality products (Mondal and Tewari, 2007).

Humans possess an innate tendency to preserve their experiences and knowledge. Throughout evolution, this inclination led to the recording of text and images on materials such as stone, rock, leaves, bark, and eventually paper. The desire to preserve not only written and visual content but also sound culminated in the invention of sound recording in the late 19th century. This innovation enabled humanity to capture and reproduce auditory experiences.

In 1924, Western Electric in the United States developed the first electromagnetic sound recording machine. This device marked a significant advancement, as it allowed for the conversion of acoustic waves into electrical signals that could drive a stylus to inscribe the sounds onto a medium, such as wax records. Over time, the technology evolved, leading to the widespread adoption of electromagnetic recording on plastic tapes coated with materials like ferrous oxide and ferric oxide. The late 20th century saw the introduction of Compact Discs (CDs), followed by DVDs and Blu-ray discs. Today, sound recordings are commonly stored on hard drives, flash drives, and memory cards.

Introduction
Cooperation is an extensive wonder. Biologists refer this term communication as mutually advantageous interplays that occur with things of the unchanging species. Cooperation in animals performs to occur generally for direct benefit or middle from two points relatives. Spending opportunity and possessions helping a related individual grant permission initially appear destructive to an animal’s chances of endurance but is actually
advantageous over the enduring. However, few researchers, like Tim Clutton-Brock, assert that communication service is a more intricate process. They state that helpers can sustain more direct, and less unintended, gains from assisting possible choice than it is usually stated. These gains include guardianship from predatoriness and increased generative appropriateness. Furthermore, they claim that cooperation concede possibility not only
be an interplay between two things but can be part of the more extensive aim of uniting populations. A generalized birth of progress that normalizes competition as a big method casts unity as a paradox, faraway in a confuse place survival is calculated in agreements of costs and benefits, following the market rule of self-addition. Prominent biologists, such as Charles Darwin, E. O. Wilson, and W. D. Hamilton, have erect the development of
cooperation spellbinding because evolutionary theory favors those who attain prominent supporter generative success while joint attitude often decreases the generative benefit of the player (the individual performing the helpful attitude).

Evaluation theories refer to the conceptual frameworks, models, and principles that guide the systematic assessment and analysis of programs, policies, interventions, and other social phenomena. They provide a set of organizing principles and methodologies for evaluating the effectiveness, efficiency, relevance, and sustainability of various interventions and initiatives in different domains, including education, healthcare, social services, environmental protection, and public policy. Evaluation theories draw from various disciplines, such as psychology, sociology, economics, statistics, and management, and they may emphasize different aspects of the evaluation process, such as the role of stakeholders, the criteria for success, the methods for data collection and analysis, and the use of evaluation results.
i. Programme theory
Program theory defines as the mechanisms that mediate between the delivery (and receipt) of the program and the emergence of the outcomes of interest. Programme theory, variously referred to as programme theory, programme logic, theory-based evaluation or theory of change, theory-driven evaluation, theory-of-action, intervention logic, impact pathway analysis, and programme theory-driven evaluation science refers to a variety of ways of developing a causal modal linking programme inputs and activities to a chain of intended or observed outcomes, and then using this model to guide the
evaluation. The term ‘logic model’ is used to refer to the summarized theory of how the intervention works (usually in diagrammatic form) and ‘programme theory evaluation’ is used for the process of developing a logic model and using this in some way in an evaluation. Most approaches to building logic models have focused on simple, linear models, but some have explored how non-linear models might be used to better represent programmes and guide their evaluation. In particular, a number of evaluators have incorporated concepts of complexity in their discussion and use of logic models. 

Introduction
The rapid expansion of global aquaculture, driven by the increasing demand for high-quality, protein-rich seafood, has necessitated significant advancements in feed production. Historically, fishmeal and fish oil—derived from wild-caught fish—have been the cornerstone ingredients in aquafeeds, providing essential proteins and lipids for the optimal growth, health, and productivity of farmed species. However, the over-reliance on these finite marine resources has raised a host of environmental, economic, and ethical challenges. The depletion of wild fish stocks due to overfishing, habitat degradation, and climate change threatens the sustainability of global fisheries. Moreover, the volatility in the cost and availability of fishmeal and fish oil has placed increasing economic strain on the aquaculture industry, which is projected to grow substantially in the coming decades. These concerns have spurred the search for alternative, sustainable feed ingredients that can reduce dependence on wild-caught fish while maintaining or even improving the nutritional value and health outcomes for farmed fish. This chapter explores the ongoing evolution of sustainable feed ingredients and their crucial role in shaping the future of aquaculture. It highlights innovative approaches, such as plant-based proteins, insect meals, and microbial sources of omega-3 fatty acids, which offer promising solutions to enhance the sustainability of aquafeeds. By addressing both the environmental impact and economic viability of aquaculture feed production, these alternatives represent a pivotal shift towards a more responsible, resilient, and efficient aquaculture industry poised to meet the growing global demand for seafood.

The total area under pulses in Kerala during 2008-09 was 3943 ha with a production of 2982 tonnes. The average yield per hectare is 756 kg. Cowpea, greengram, black gram and red gram are the important pulse crops traditionally grown in Kerala. Nearly 75% of area under pulses cultivation is occupied by cowpea. The remaining 25 per cent of area under this group of crops in the State is shared mainly by greengram, black gram and red gram. Among these, red gram is mainly confined to the Palakkad district and the crop season extends over kharif and rabi together. The other pulses are cultivated in all the districts of the State. Bengal gram is totally imported and there is little scope for its development in Kerala.

Society

Human societies are intricate networks of individuals engaged in continuous social interaction within a shared geographical or social space, typically under the governance of the same political authority and cultural norms. These societies are characterized by complex patterns of social relations, cultural practices, and institutional structures, collectively shaping the fabric of human existence. Social sciences often reveal underlying stratification and dominance patterns within these societies. Collaborative in nature, societies offer collective benefits that transcend individual gains, facilitating opportunities that would otherwise remain inaccessible. Within a society, subcultures may emerge, governed by their distinct norms and values, coexisting within the broader societal framework. Structurally, societies encompass economic social, industrial, and cultural infrastructures, comprising diverse individuals yet forming a cohesive entity. The term “society” traces its origins to the Latin word “societas,” signifying friendly or civil interaction among parties. It encompasses the entirety of humanity, acknowledging the interdependence and interactions among individuals.

Banded Leaf and Sheath Blight
Diagnostic Symptoms
• From the crop’s seedling stage until crop maturity, this pathogen can infect the plant at any point in its growth.
• The disease initially appears on the first and second leaf sheaths above the ground, and it eventually spreads to the ears, where it results in ear rot.
• The hallmark symptoms of ear rot include the presence of light brown, cottony mycelium on the plant’s ear, small, rounded black sclerotia, early ear drying, and caking of the ear sheath.
• When there is humidity, the infection that first appears on the lower sheath extends to the upper sheaths, causing leaf sheath rot and complete leaf drying.
• When the condition worsens, the majority of the plant’s leaves become blighted, and easily detachable sclerotia form on the lesions.
• The disease manifests as a straw-colored, wet, irregular to roundish patch on both leaf surfaces on the basal sheath.

Abstract

The best way to conserve the biological diversity is by involving the local community. It is popularly known as community-based biodiversity conservation (CBC). The conflict between the nature and local communities who have stakes and rights in their territory is a matter of great concern. Likewise, when there prevails the community diversity, what would be the role, participation, share, stake, management issues, equity parameters etc. are the factors that affect CBC. However, CBC is future of conservation of natural resources. It needs adequate focus of community-scale projects on biodiversity conservation implemented by different parties and NGOs. Similarly, empowering community people through adequate financial support and appropriate monitoring and evaluation are the key success factors of community conservation projects. Ethnicity, gender and wealth were the factors that predicted CBC. Hence, the CBC programmes must address these aspects with adequate emphasize. The conflict between human activity and biodiversity conservation, if handled very effectively, will be a productive strategy to highlight pragmatic problems that arise at the field level and creating equitable and sustainable solutions. The general threats as a result of conflict between human activity and biodiversity conservation are agricultural intensification, recreation and human activities and policy related threats. Hence, awareness creation must have an integrative and interdisciplinary approach including the bodies that administer social and natural movements as well as the interests and priorities of local communities. Governing biodiversity conservation measures through political processes by engaging the appropriate representatives has valid implications for the whole process of biodiversity conservation. Alienation of local community, lack of favorable legal framework and lack of addressing the conservation issues through political process may adversely affect the biodiversity conservation as a whole.

Introduction

The Horticulture crops and commercial crops like sugarcane have become a key drivers for economic development in many of the states in India, and it contributes 29.5 per cent and 24.80 percent respectively to the GDP of agriculture, which calls for technology-led development. The research priorities for genetic resource enhancement and its utilization, enhancing the efficiency of production and reducing the losses in environment friendly manner and effectively channellising the marketing for the produce. Accordingly the research was taken up to study on the prioritization of research for the crops viz., sugarcane, banana and jasmine. The study deals with the knowledge, adoption and research priorities on selected crops’ cultivation which has already been occurred.

Floral Biology and Crossing

Pearl millet spikelets bear 2 types of florets, one being bisexual and the other staminate. A singIe pistil with 2 feathery and 3  anthers is enclosed between the lemma and palea. The unisexual staminate florets are sessile and borne below the bisexual flowers. These have 3 anthers and lack the female organs. Pearl millet is a highly protogynous species and thus  highly cross pollinated.
 
The time of panicle exertion from boot leaf varies in inbreds and hybrids. Bhatnagar and Kumar (1960) observed that spike takes 6 days to emerge from the sheath with the maximum emergence on the fourth or fifth day. The stylar branches protrude first from the florets at the tip of the head and gradually proceed downwards. Most of the stylar branches on the earheads emerge by the third day. There exists a great variation in the time taken for the complete emergence of the styles in the hybrids than in the inbred lines (Tewari et al.,1971). Anthesis in pearl millet is completed in two phases. The first involves the bisexual florets while the second involves staminate florets. It has been generally observed that the anthers in the sessile male florets emerge 2-3 days after the anthers have emerged in the bisexual florets. Thus most heads continue to shed pollen for 4-6 days.The largest number of anthers emerged between 8 PM and 2 AM. Environmental factors like temperature and humidity have significant role in the anther emergence.