eChapters

10.1 Introduction

There are very few frequency modulated fiber optic sensors. This is because frequency modulation of light occurs under a limited range of physical conditions. The principal one is based on Doppler effect. There are few other circumstances under which the frequency of light is modulated. These include luminescence and Raman scattering. Luminescence has been included in chapter 7under fluorescence based sensors. In this chapter we shall focus on the sensors based on Doppler effect and Raman scattering. In particular, we shall discuss the measurement of blood flow velocity, colloidal particle motion and Raman spectrum using optical fibers.

Abstract

Fungal rot and wilt caused by Sclerotinia sclerotiorum is a devastating disease of vegetables causing huge loss. The fungus has a broad host of more than 400 species including diverse vegetable crops, viz., carrot, potato, tomato, green pepper, eggplant, lettuce, peas and beans, cole crops, bottle gourd, pointed gourd, etc. Being able to overwinter in the soil in form of sclerotia upto 5 years and having such a wide host range, management of the disease becomes very difficult. Thus development of resistant varieties can be the only long term strategy for control of the pathogen. The screening of the existing genotypes and identification of resistant genotypes forms the base of any resistant breeding programme. The widely available genotypes of different crops have been screened by several researchers and resistant genotypes have been identified in cauliflower, vegetable soybean, peas, tomato, etc. These genotypes are further used in breeding programmes for as donors for resistance to Sclerotinia sclerotiorum.

Keywords: Vegetables, Sclerotinia, Resistance breeding, Genotypic screening

1. Choose the most appropriate option with a tick mark

i) Floating plants are required for breeding

a) Guppies

b) Angel fish

c) Swordtail

d) Gourami

ii) Breeding traps are generally used for

a) Egg-scatters

b) Egg-depositors

c) Livebearers

d) Nest-builders

Nanomedicine, an interdisciplinary field at the intersection of nanotechnology and medicine, has emerged as a promising avenue for addressing complex health challenges. One area of significant interest is the application of nanotechnology in maintaining and improving gut health. This chapter provides a concise overview of the current state of research in nanomedicine's role in promoting gastrointestinal well-being.

Nanoparticles, with their unique physicochemical properties, offer novel approaches for targeted drug delivery, imaging, and diagnostics in the gastrointestinal tract. Engineered nanoparticles can navigate the harsh conditions of the digestive system, delivering therapeutic agents precisely to the intended sites within the gut.

Introduction

Aquaculture has emerged as a viable business model having high growth potential for the entrepreneurs and start-ups in India. The rate of adoption of the aqua-business models for new age entrepreneurs has been very high in recent times. Some of the viable business models that are technology based and scalable have been attractive to the entrepreneurs are in the indoor aquaculture system like RAS, Biofloc systems. It offers many advantages like low space requirements, easy monitoring, higher level of intensification, easy management, short supply chain to the urban markets etc. These indoor aquaculture system are broadly defined as peri-urban aquaculture system offering high growth potential to the entreprenuers in India. The chapter provides a broad outline of the opportunities and recent trends of entrepreneurial developments through peri-urban aquaculture.

Entrepreneurship is the risk taking ability and readiness to venture into a new economic enterprise, along with all its challenges in order to make profit. One of the examples of entrepreneurship is the starting of new businesses in any field with business potential. In other words, entrepreneurship is the creation or extraction of economic value (Diochon et al. 2011; Gaddefors et al. 2017; Alvarez, et al. 2001). It is also viewed as a change, generally entailing risk beyond what is normally encountered in starting a business, which may include other values than simply economic ones. A person gets the benefits as he invests in one or more businesses, bearing most of the risks and availing most of the rewards. According to Shane (2000), entrepreneurship comprises both “enterprising individuals” and “entrepreneurial opportunities”[4]. An entrepreneur is generally seen as an innovator, a source of innovative ideas, services, and business.

Promotion Mix

The main objectives of promotion mix are to seek buyer’s attention towards the product with a view to : (1) arouse consumer interest in the product (2) inform consumer about the product availability (3) inform the consumer as how is it different from others.

The selection of right dog for the required purposes like watching, hunting, guarding, showing, companionship and even animal associated therapies nowadays, warrants a detailed information on various dog breeds, like physical and other specific characteristics which may be different to each other. This  chapter  gives important characteristics of dog breeds and guidelines for buying a pup.

11.1 Introduction

In previous chapters we have described fiber optic sensors based on intensity and phase modulations. These sensors have some problems in practical applications that need to be solved. Some of these are fluctuation of light source power, loss in couplers, scattering and absorption effects that affect measurement performance, temperature drifts and vibrations. In comparison to intensity and phase modulated sensors fiber Bragg grating (FBG) sensors have following advantages:

High resolution

Insensitive to intensity fluctuation because the signal obtained from an FBG sensor is encoded directly in wavelength domain.

Provision of well localized sensing region

Linear output as a function of the measurand

The capability of multiplex many sensors along one fiber

Abstract

Fats and oils are one of the five essential ingredients of human diet and the others are protein, carbohydrates, minerals and vitamins. The oil seeds are major source of edible in world. Oils and fat form an important constituent of human food. Lipid metabolism generates many bioactive lipid molecules, which are fundamental mediators of multiple signaling pathways and they are also indispensable compounds of cell membranes. Many people in developing countries, especially children under five years of age suffer from acute or chronic protein and energy shortages. There is definitely a need for food production to keep pace with the increase in the number of the world’s population. Oilseed and nut should be properly dried before storage, and cleaned to remove sand, dust, leaves and other contaminants. All raw materials should be sorted to remove stones and moudly nuts. Some moulds, especially in the case of groundnuts, can cause aflatoxin poisoning.

Introduction

Oil has been a vital part of people’s regular dietary consumption all over the world and its usage has been found to increase several folds over the decades. The importance of using the appropriate oil for cooking goes a long way in affecting the consumer’s health. Improper methods of oil-aided cooking can lead to cardiovascular diseases and increased cholesterol in the blood (Kumar et al., 2018). There is definitely a need for food production to keep pace with the increase in the number of the world’s population. In order to achieve these national development strategies in many based economy tropical countries on agriculture and biased now towards increasing diversity of food products and consumer in order to alleviate malnutrition and pressure to strengthen and expand based industries on agriculture to ensure that their products are both healthy and safe. Oils and fats for food have used a variety of other applications since prehistoric times, and were easily isolate the source of the fats and oils found useful because of its unique properties.

INTRODUCTION

Potato belongs to a genetically diverse genus Solanum having nearly 235 tuber bearing species. These speciesform a polyploid series ranging from diploids (2n=2x=24)tohexaploids (2n=2x=72), with12 asthebasic chromosome number. There is also arichdiversity within the cultivatedspecies of potato and they were initially grouped under six different species. Later studies, however, recognized those species as land race populations of S. tuberosum, with the eight groups: Ajanhuiri, Andigenum, Chaucha, Chilotanum, Curtilobum, Juzepczukii,Phurejaand Stenotomum(Spooner & Salas, 2006). Thisrich genetic diversity of the species is available in the Andean mountain where potato originated. In India,however, it was quite natural that genetic variability within the locally available material will be meager since, it was introduced here only about 400 years ago. On the contrary, more than 500 differentvarieties existed in India by 1940. This paradoxical situation was primarily due to assigning different local names toasingle variety in different parts ofthe country. The available local varieties in India consisted of both early introductions belonging to either pure Solanum tuberosum ssp. andigenum or their hybrids with S. tuberosumssp.tuberosumas well as later European introductions belonging to S. tuberosum ssp. tuberosum.

1. SEED TESTING

The science of evaluating the planting value of seed has been developed to achieve the following objectives for minimizing the risks of planting low quality seeds.

To determine the seed quality and its suitability for planting

To identify seed quality problems and their probable cause.

To determine the need for drying and processing, if any.

To determine if seed meets established quality standards for labeling.

To establish quality and provide a basis for price and consumer discrimination among lots in the market.

Geographic location of India is in Northern hemisphers and located between 80 4' & 370 6' N latitude and 640 7' & 970 25' E longitude. Extent of area is 329 M Ha or 329 x 104 Sq.Km or 3.29 MSq.Km. The physiography of India can be broadly grouped into triangular plateau, mountains, Indo-gangetic plains and islands. India is divided into twenty agro ecological regions and sixty five agro ecological sub regions as per NBSS and LUP. Agro ecological regions( AER) is referred to identification and demarcation of land units having comparable landform, soils, bioclimatic conditions and the length of growing period (LGP).

Despite substantial advances in the diagnostics and treatment of diseases, parasitic infections are a major global health issue causing significant mortality and morbidity. Currently, chemotherapeutic antiprotozoal drugs, anthelmintic and anti-ectoparasitic agents are used to treat, but resistance to these drugs has developed due to overuse. In this scenario, nanoparticles are proving a major breakthrough in the treatment and control of parasitic diseases. In the last decade, there has been enormous development in the field of nano medicine for parasitic control. Gold and silver nanoparticles have shown promising results in the treatments of various types ofparasitic infections. These nanoparticles are synthesized through the use of various conventional and molecular technologies and have shown great efficacy. 

1. Downy mildew
Diagnostic Symptoms
• Symptoms appear on all aerial and tender parts of the vine.
• Irregular, yellowish, translucent spots on the upper surface of the leaves.
• Correspondingly on the lower surface, dirty white, powdery growth of fungus appears.
• Affected leaves become, yellow and brown and gets dried due to necrosis
• Premature defoliation.
• Dwarfing of tender shoots.
• Infected leaves, shoots and tendrils are covered by whitish growth of the fungus.
• White growth of fungus on berries which subsequently becomes leathery and shrivels. Infected berries turn hard, bluish green and then brown.
• Later infection of berries results in soft rot symptoms. Normally, the fully grown or maturing berries do not contact fresh infection as stomata turn non-functional.
• No cracking of the skin of the berries (Fig.1). 

12.1 Introduction

Among a variety of optical evanescent wave techniques, spectroscopies based on the resonant excitation of surface plasmons have matured into a widely accepted surface analytical method used in different fields. Liedberg et al¹ were the first who demonstrated the exploitation of surface plasmon resonance (SPR) for chemical sensing. Since then the SPR sensing principle has received much attention. In this chapter we shall first describe the principle of this technique and then few sensors that have utilized this phenomenon.

A lot of infrastructure in the form of sheep breeding or production facilities such as sheep breeding research stations with adequate number of animals have been established and research technologies generated. The research technologies generated have however not been fully adopted by State Animal Husbandry Departments in the field except in Jammu & Kashmir, Himachal Pradesh and Parts of Rajasthan because of artificial insemination under field conditions due to migratory and semi-migratory practices in sheep husbandry, illiteracy among sheep farmers, their prejudices and convictions and difficulties in the preservation and storage of ram semen and main power requirement.

There is need to study the factors associated with adoption and rejection of sheep rearing as a subsidiary occupation and to know the attitude and knowledge of rural people. So that measures could be suggested to bring greater adoption of sheep rearing. The present study was undertaken to reveal the knowledge and attitude of adopters and non-adopters towards sheep rearing with the identification of factors helping and hindering the adoption of sheep rearing enterprise.

This chapter deals with the review of problems, objectives, hypothesis, research methodology and summary of major findings and conclusions based upon them. In addition, recommendations have also been made to accelerate adoption of sheep rearing programme in the five villages of Block Rajouri, District Rajouri, Jammu and Kashmir.

The present study was conducted to measure the knowledge and attitude of rural people towards sheep rearing and to find out the factors responsible for adoption and rejection of sheep rearing. Suitable measures are therefore suggested to bring greater adoption of sheep rearing in the hills of Jammu & Kashmir.

Animal Fibers                   The animal materials like wool, hair, fur, mohair and silk used for weaving, knitting or felting into a fabric are                                                      generally termed as animal fibers. Animals used for the purpose are sheep, goat, llama, alpaca, camel, vicuna                                                and silk worm.

ABSTRACT

The state of Jammu and Kashmir, especially the valley of Kashmir, has a rich diversity of traditional agroforestry models, which are in existence since time immemorial. Agroforestry is based primarily on natural occurrence of trees. The paper highlights the traditional agroforestry systems prevailing in the valley. A number of studies have been undertaken since the inception of AICRP-AF in University of Agricultural Sciences and Technology, Kashmir. Besides design and diagnostic survey, studies on evaluation of twelve multipurpose tree species identified during design and diagnostic survey and designing of various agroforestry models for different problematic sites have been undertaken. These studies have been tested over a period of time and have been found suitable for different sites. The out come of these studies and the recommended agroforestry systems are given in this paper.

INTRODUCTION

Land is a vital natural resource and is the basis of our existence. Due to mounting pressure of increasing human and livestock population it has been subjected to various pressures and misuse resulting in degradation of land and loss of biodiversity. Management of land is therefore, of paramount importance so that increasing needs of human and livestock are met on sustainable basis. During the last three decades agroforestry has been recognised as a distinct land management system, which is destined to play an important role in socio-economic transformation of marginal lands into more productive agrarian economy. India has a long tradition of agroforestry, farmers and land owners in different parts of the country integrate a variety of woody perennials in their crop and livestock production fields, depending upon the agro climatic conditions and local needs. Most of these practices are, however, location specific and information on these is very scanty, therefore, benefits have remained vastly under exploited and un extrapolated to other sites.

The word ‘market’ is a derivative of the Latin word _____

a) Marcatus

b) Markus

c) Marcat

d) Martus

2. ‘Marcatus’ is a _____ word.

a) Greek

b) Latin

c) French

d) Spanish

3. The word ‘Marcatus’ means 

Introduction There are multiple methods or trapping technologies available for pest management in agriculture. Some of the method discussed in literature are described here. Insect pests in an agricultural field can cause damage to the crops by infecting the crops with diseases and thus may affect adverse impact on its quality. Nowadays, farmers set up insect traps like sticky papers that comes in different colours such as yellow, green and blue to monitor the number of pests. Different insects are specifically/ particularly attracted to the colours of the sticky paper commonly such as yellow or blue (Espinoza et al?, 2016).