eChapters

I. Rock Phosphate

Rock phosphate is natural source of phosphorus. It occurs as natural deposits of rock in Morocco, U.S.A., Egypt, Poland, Russia, Tunisia, Algeria, Brazil, Nauru and some Islands in the Pacific and the Indian ocean. It contains 20 to 35 percent phosphoric acid (P2 O5 ) but this phosphorus is in insoluble form. In India, some of rock phosphates occur in Udaipur and Jaisalmer districts (Rajasthan), Purulia (West Bengal), Singhbhum (Zharkhand) and Mussorie (Uttrakhand). Most of these phosphates are classified as low grade phosphate since its phosphoric acid content is less than 20-25%. The total reserve of low grade rock phosphate is estimated to be around 165 million tonnes of which nearly 70 million are reported to occur in Rajasthan. The other economically viable deposits are in Mussorie (Uttarakhand), Jhabua district (Madhya Pradesh), Singhbhum (Zharkhand) Kasipatnam (Andhra Pradesh) and Purulia district (West Bengal). Rock phosphate is the basic raw material for manufacture of superphosphate and other kind of phosphatic fertilizers. It is reported above that India has mostly low grade rock phosphate. Hence India has to spent huge amounts of foreign exchange to import high grade rock phosphate containing around 32-35%, P2 O5 for manufacture of phosphatic fertilizers.

Tuber crops are rated as one of the richest sources of energy, besides being a treasure house of vitamins and minerals. The highest rate of dry matter production per day per unit area makes tuber crops important in the food economy, especially in meeting rural feed security. The tuber crop produce can also be processed into various food products to suit the taste and need of the urban, semi-urban and rural folk as well. Better post harvest management and diversification for production of value added products is one of the dependable methods to make tuber crops lucrative to both farmers and entrepreneurs.

India has the highest livestock population in the world with 50% of the buffaloes and 20% of the world’s cattle population, most of which are milch cows and milch buffaloes. The dairy industry in our country is considered as one of the most successful development programmes in the post-Independence period. In the year 2006-07the total milk production in the country was over 94.6 million tonnes with a per capita availability of 229 gm. per day. The industry had been recording an annual growth of 4% during the period 1993-2005, which is almost 3 times the average growth rate of the dairy industry in the world. Milk processing in India is around 35%, of which the organized dairy industry account for 13% of the milk produced, while the rest of the milk is either consumed at farm level, or sold as fresh, non-pasteurized milk through unorganized channels. Dairy Cooperatives account for the major share of processed liquid milk marketed in the India. Milk is processed and marketed by 170 Milk Producers’ Cooperative Unions, which federate into 15 State Cooperative Milk Marketing Federations. Over the years, several brands have been created by cooperatives like Amul (GCMMF), Vijaya (AP), Verka (Punjab), Saras (Rajasthan). Nandini (Karnataka), Milma (Kerala) and Gokul (Kolhapur). Uttar Pradesh, Punjab, Haryana, Rajasthan, Gujarat, Maharashtra, Andhra Pradesh, Karnataka and Tamil Nadu are the milk surplus states in India.

Drugs acting on alimentary system

Drugs acting on respiratory system

Drugs acting on urinary system

Drugs acting on genital system

Drugs acting on musculoskeletal system

Antineoplastic drugs

Antimicrobials

Antifungal

Antiprotozoal

Anthelmintics

Introduction

The green revolution is exemplified by too much adoption of high soil disturbance, modern varieties, energy exhaustive technologies, high amount of capital investment and simplification of farming systems (Meeus, 1993), resulting in uniform and featureless landscapes (Nassauer and Westmacott, 1987) in the most intensively farmed arable areas. In post-green revolution epoch, we had experienced a period of remarkable escalation in food productivity, despite rising land values and increasing land scarcity. Farmers from both developing and developed countries get exposed to several production constraints for achieving a sustainable, cost-effective and assured return from their field. Depending upon the circumstances and the scale of farm activities, farmers face varying degrees of climate risk, biotic invasion, and economic uncertainty. Thus, from the context of economical ambiguities, volatile food prices, social pressure to buffer ups and downs of agricultural production and achieving food security for ever growing population and curtailing poverty, farmers must be equipped with novel cultural practices to achieve a sustainable and assured cost-effective grain production. Research experiments throughout the globe found that the principal indicators for unsustainability of agricultural systems are: (1) intensive tillage induced decrement of soil organic matter (OM), structural degradation of soil, accelerated water and wind erosion, reduced water infiltration rates, surface sealing and crusting, soil compaction, (2) insufficient return of organic materials into soil, and (3) monocropping.

There are many distribution networks which an organization may use depending upon the nature and usage of the product. Generally, there are two types of distribution networks which are being widely used the first is direct selling to the customer and the second is to have intermediaries in between which ensures that the product is available to the final consumer. In this indirect method the company is not in direct touch with the customer and this gap is filled by the middleman. The middleman not only provides the product to the customer but he also provides continuous feedback to the organization about the product and market demands. 

Abstract

The geochemical signature and vulnerability of groundwater of the East Coastal aquifers of  India from Pondicherry to Nagapattinam were determined. The coastal aquifers are fragile and this situation becomes more intense in aquifer systems like that of the Pondicherry to Nagapattinam region. A total of 136 water samples were collected during pre and post monsoon of 2008 and 2009 respectively. Out of which 45 samples for each pre and post monsoon from shallow groundwater and 23 samples for each pre and post monsoon from deeper groundwater.. The samples collected were analysed for major, minor cations and anions. Selected samples were also analysed for stable isotopes (d¹⁸O and dD). The analysed samples were studied for; their utility for different purpose, the nature of the geochemical classification, their variations in ion ratios, extent of sea water intrusion and the percentage of mixing, The study reveals that chief mechanism controlling shallow groundwater is the salts precipitated in the pore spaces during the Pre monsoon were leached and dissolved during the subsequent monsoon apart from sea water intrusion. Southern part of the study area  is more vulnerable than the Northern part of the study area.

The Para rubber tree (Hevea brasiliensis) is the most important commercial source of natural rubber, a strategic raw material. Rubber is an indispensable commodity used in the manufacture of over 50,000 products worldwide. This crop has therefore emerged as a key plantation species in various countries. The global area under rubber  cultivation is about 9.6 million hectares producing 9.2 million tones annually (IRSG, 2014). Among the major natural rubber producing countries, India occupies 4th position in terms of production with 0.91 million tones and more significantly the first position in average productivity of 1823 kg/ha/year. The major rubber producing countries are Thailand, Indonesia, India, Malaysia, Vietnam and Sri Lanka. Rubber is also commercially cultivated in Philippines, Nigeria, Cameroon, Cote de Ivoire, Liberia, Brazil, Cambodia, Nigeria, Cameroon, Guatemala, Myanmar, Mexico, China, Ghana, Democratic Republic of Congo, Gabon, and Papua New Guinea.Increase in production and improving productivity of NR continues to be the subject of considerable research efforts, particularly in the context of the widening gap between demand and supply of natural rubber. Over one million small farmers  in India owning less than 0.5 ha. of land depend on rubber cultivation for a livelihood.

A) Conventional breeding techniques
Conventional breeding techniques for spices involve various methods to improve traits such as yield, quality, disease resistance, and adaptability. Here’s an overview of conventional breeding techniques applied to specific spices:
1. Black pepper (Piper nigrum)
• Selection: Choose superior plants based on traits like yield, quality of peppercorns, and disease resistance.
• Hybridization: Cross-breed different varieties to combine desirable traits.
• Mutation breeding: Induce mutations to develop new traits or enhance existing ones.
2. Small cardamom (Elettaria cardamomum)
• Selection: Select plants with high yield, better quality, and disease resistance.
• Hybridization: Cross different varieties to improve traits such as pod size and essential oil content.
• Seed production: Improve seed production and quality through selection.
3. Large cardamom (Amomum subulatum)
• Selection: Identify plants with higher yield and better resistance to pests and diseases.
• Hybridization: Develop hybrids to enhance flavour and size of the cardamom pods.

ABSTRACT

Madhya Pradesh is declared as mega diversity state in India. It also harbours diversity in human population as 1/4^th of its population is tribal. These tribal people are practicing agroforestry since time immemorial. The state is divided into 11 agro climatic zones. The paper provides the agroforestry systems and species suitable for these zones. The traditional practices and the innovative agroforestry systems developed are also given. Agroforestry systems that are suitable for problematic soil have been briefly discussed. Efforts of different institutes like TFRI, JNKV and projects like TDET, ORP on Agroforestry, AICRP on AF in developing different system and their recommendations are also provided in this paper.

INTRODUCTION

Environment remained in its pristine purity and congeniality till man stayed in the hunting and food gathering stage. But, as he entered in the pastoral age and domesticated animals, he gradually passed from the nomadic stage to settled cultivation. When, he cleared the first patch of earth and upturned the first sod and lifted the first bucket of water, the long story of his interference with environment started. Clearing trees for farming, disturbing the moisture regimes and furrowing the land endangered the phenomenon of erosion leading on to the problem of reducing the soil fertility. At the same time, the art of Agroforestry emerged, though in the most rudimentary fashion, which in varying form and emphasis has continued till today. Coming to recent times, the increasing pressure on land as well as on forests, rising demand for fuel and fodder and finally the requirement of timber for multifarious purposes have strengthen the need of agroforestry as an alternate land use system especially at natural resource conservation front (Singh, 1999). Pathak (2000) opined that agroforestry is a land management system that optimizes the overall land productivity and reduces resources depletion through the utilization of positive interactions between crops-trees-animals in its temporal and spatial dimensions. In this way, agroforestry operates in a given socioeconomic frame work; it is not a static but a dynamic structure.

Introduction

Multiplication of plants is termed as propagation. Nowadays, propagation practice has been totally modernized. Propagation practices have advanced from field to in-vitro. Starting from scion stick of 15 to 20 cm length, the plants are multiplied even using cell, tissue and embryo. In modern horticulture trade, plant propagation is a soaring business. It is highly profitable, employment generative, recreative and creative business.

Several improvements have been noticed over the period of time in the basic techniques of plant propagation, using either conventional or tissue culture approaches. The propagation under protected environment by creating artificial conditions such as light, temperature and humidity under controlled irrigation through drip irrigation and fertigation has enhanced the potential of plant propagation and has made it possible to propagate the plants around the year.

In tropics, many crops are grown for their edible roots or tubers. Broad group of “tuber crops” encompasses a wide range of starchy food crops, some of which are true botanical roots and some others are stem tubers or corms. In global scenario, they are in a neglected state mainly due to their negative image as poor people’s food. They are highly perishable and are normally consumed locally in fresh or home processed state. It is time to bring out the positive attributes of these important foods and the increased contribution they can make to the nutritional welfare, food security and economic wellbeing of people, especially in developing countries.

Abstract

In the past decade, many knowledge-centric mobile phone initiatives in Indian agriculture have emerged, either substituting or supporting extension services by providing farmers with access to agricultural information. These knowledge-centric mobile phone platforms have the potential to reach many farmers directly with timely and accessible content. But the content that these deliver has more relevance if it is localized and context specific, as this improves the value and actionability of the information, which can have important impacts on farm management. The localization of content is influenced by how the projects access, assess, apply, and deliver content.

Introduction

In India about 8.6 per cent of population enlisted in the category as ‘Scheduled Tribes’ under Article 342 of the Constitution of India, but they constitute almost 16 per cent of the poor. Lakshadweep is the most populous state with respect to proportion of tribal to total population (94.8 per cent) whereas, in Uttar Pradesh tribal population is lowest with only 0.6 per cent of the total. In Odisha tribal constitutes 22.8 per cent of total population. In India literacy rate of tribal is 59 per cent as against that of general category is 69 per cent. Tribal people are observed to be strongly associated with the forests, hills and remote areas, practising a unique life style, having a unique set of cultural and religious beliefs. Over the generations these communities have evolved time tested farming systems, which are purely subsistence in approach and are keeping pace in perfect harmony with nature. Over the recent few decades, however, population growth and lack of harmony between different agriculture and developmental policies have threatened these traditional agricultural systems for extinction. The encroachment of local Governments and private interests on forest and mineral resources has pushed the tribal groups on to increasingly degraded land, thus their survival became a constant struggle.

The primitive societies have passed through several stages of economic development everywhere in the world. Thus one can find the stages of food gathering, hunting and fishing, farming, etc. among the Indian tribes. The tribes living in the forests and hills usually earn their livelihood by means of food gathering, hunting and fishing. Such is the life of Kadar of Kerala, Birhor and Kharia of Bihar and other tribes. The tribes living in dense forests, full of wild beasts, live on hunting, such as the tribes of Naga, Kuki, Bhil, Santhal and Gond. The hunters leave the females to carry out household activities in the morning and return in the evening after hunting. In some tribes there is a usual custom of hunting collectively. The Nagas use spears, arrows and bows. The Bhils are very much specialized in shooting by arrow. The tribes living near rivers and seas usually earn their livelihood by catching fish. The hilly tribes rear the cattle, an example of which are Goojars and the tribes of Chamba. The Todas of Nilgiri rear buffaloes. Some tribes also carry out cultivation, but they are generally shifting from one place to another. So shifting cultivation is an intrinsic part of tribal system and tradition. Among the cultivating tribes are the Santhals and Gonds. Tribal groups mostly do not have land ownership and have a limited option to adopt agricultural operations in forest areas. Considering their sustenance Government of Odisha has passed an Act “Schedule Tribes and other forest dwellers Forest Right Act” in 2006. It permits ownership of tribals on forest land up to 4 ha. for forest use and subsistence agricultural activity without any penalty. Cottage industries, such as weaving cloths, preparing ropes and skins and utensils of different metals are prevalent in many tribes. The Kharia people are very much specialized to cottage industries. Their living standard is very poor in spite of their hard work.

Frankia is potent nitrogenous biofertilizer for forest trees since it establishes symbiotic association with non-leguminous plants. Nitrogen fixing non leguminous trees thrive in temperate condition. The species belong to Casuarinaceae are an exception and grow successfully in tropical areas. Alnus for temperate regions and the genus Casuarina for tropical and sub-tropical regions stand out examples of the benefits they provide to ecosystem by the way of nitrogen fixation. They have an excellent potential to adapt themselves to grow under diverse geographical and environmental conditions providing enough fuel, fodder, pulp and timber. The microsymbiont within these root nodules of non-leguminous plants has been identified and designated as Frankia (Becking, 1970).

Historical Developments

First of all Boussingault, a French farmer during 1838 drew attention that non-legumes were capable of fixing atmospheric nitrogen. The roots of Alnus were described as warty brownish biomass as large as man’s fist (Woronin, 1866). Frank and coworkers (1887a, b, 1891) studied the nodulated nitrogen f ixing trees regardless of whether they were leguminous or non-leguminous (actinorhizal). Frank believed that the bacteroids were protein deposits but subsequently he named the causative organism as Frankia subtilis. Moller (1885, 1890) reported the causative organism in the nodules as plasmodia and Frank also revised his opinion and pointed out that the causative organism was a fungus. Such conflicting results were due to imperfect techniques to differentiate between vesicles and sporangia. Later the organism was renamed as Frankia bruchorstii to honour Frank and his coworker, Brunchorst (Moller, 1890).

Introduction
Vegetable crops are highly susceptible to biotic stresses indicated by disease causing micro-organism (fungi, bacteria, virus and phytoplasma). Indiscriminate use of chemicals for the control of diseases, insect pest have
several disadvantages, particularly increased cost of cultivation, residual toxicity in food chain and development of resistance against pathogen. Management of diseases involves use of resistant varieties and integration of cultural and chemical control measures. Of the biotic stresses much of the breeding efforts have been directed towards developing resistance against diseases. In fact, breeding for resistance, has been one of the most important objective of vegetable breeder in the last half of the century. Genes that contribute to pathogen tolerance/resistance can be obtained from local germplasm resources, or through exotic lines, wild species or genera, or lines from other breedingprograms. In the biotechnological approaches for vegetable breeding also,  most of the achievement has been to generate transgenic plants resistance to disease. Often breeding for resistance has assumed greater importance in a number of vegetable crops.
Major Diseases of Tomato
Early blight: The casual organism is Alternaria solani. The symptoms appears as small, black spots with enlarged and concentric rings in a bull’s eye pattern in the center of the leaves. Tissue surrounding the spots may turn yellow. On fruits, dark brown concentric rings are seen that affects the market quality.

Ice cream defects can result from formulation imbalance, poor ingredient quality, processing deviations, inadequate freezing or hardening, packaging problems, storage conditions, and cold-chain failures. This chapter provides a systematic framework for understanding, classifying, diagnosing, and correcting defects affecting flavour, body, texture, melting, colour, appearance, packaging, and storage stability. It emphasizes that a visible defect in the finished product may originate much earlier in the production or distribution chain. Examples include iciness caused by slow freezing or temperature abuse, weak body associated with formulation or overrun, and flavour problems originating from raw materials or microbial activity. Defect analysis therefore becomes an important tool for troubleshooting, quality improvement, training, and preventive action.

Introduction

India (8^o-30^o N and 68-97.5^ºE) exhibits a wide range in topography and climate, which has a bearing on its vegetation and floristic composition. This subcontinent is one of the World’s 12 leading Biodiversity Centres, encompassing 16 different agro-climatic zones, 10 vegetation zones, 25 biotic provinces and about 426 habitats of specific species. It has been estimated that about 45,000 plant species (nearly 20% of the global species) occurs in the Indian Sub-continent. About 3,500 species of both higher and lower plant groups are of medicinal values. More than 80 per cent of medicinal and aromatic plants (MAPs) are collected from 17 million hectares of Indian forest land. However, many of these, due to over-exploitation have become rare (Rheum emodi, Aconitum deinorrhizum), threatened (Rauvolfia serpentina, Berberis artistata) or endangered ones (Sassurea lappa, Dioscorea deltoidea). Problems arising out of rapid genetic loss of medicinal plants forced the need for international co-operation and co-ordination to undertake programmes for conservation of medicinal plants to ensure that adequate quantities are available for future generations.

Vegetables are considered protective foods and play an important role in human nutrition. These help to combat malnutrition and also diversify diets with variety of colours. The compounds imparting various colors to the vegetables are important antioxidants that also help to combat degenerative diseases like cancer. Over the years, vegetable sector has made an appreciable progress in terms of production and productivity and emerged as the better option to diversify agriculture, generate employment and enhance farmers’ incomes. The worldwide production of vegetables has doubled over the past quarter century and the value of global trade in vegetables now exceeds that of cereals.

Introduction
It has been universally acknowledged that breeding for hybrids is the most effective conventional plant breeding technique. When two genetically distinct parent lines typically inbred lines are crossed, the resultant progeny is referred as a hybrid. It has been demonstrated that hybrids are larger, more productive, and hardier than their parental lineages. When we talk about hybrids, it is also imperative to understand two other related jargons: heterosis and hybrid vigour. The word “heterosis” was first coined in 1914 by Gottingen to refer the hybridization process in which two homozygous individuals (inbreds) are crossed to produce a hybrid. Darwin first used the phrase “hybrid vigour” in 1876 to denote the superiority of the F1 offspring produced by heterosis (i.e., the hybrids show superior performance with increased characteristics when compared with the two parental lines).
In general, the goal of plant breeding is to create better crop varieties by utilizing genetic variation found in the germplasm of the given plant species. Traditionally, two genetically different accessions of the given crop were selected and crossed to produce a hybrid. The genotype of this hybrid is the outcome of the fusion of the male and female gametes, those produced a zygote, from which the progeny eventually emerged. It would be appropriate to recollect the point that a plant’s life cycle consists of a gametophytic generation that produces gametes. Therefore, the genotypes of the gametophytes reflect the genetic diversity of the gametes.
Gametophytes are derived from spores, which are created via sporophytic reproduction during the course of the plant’s life cycle. Meiosis is a specialized kind of cell division that produces spores from differentiated cells that are located in the reproductive organs of plants. Two important processes (viz., recombination and chromosomal segregation) occur during meiosis and this results into independent assortment and creation of novel combinations of the genetic components of a diploid genome into a haploid genome of the gametophytes. Consequently, the genotype of a progeny is made up of the genotypes of the male and the female gametes that merged to create a new sporophyte. Therefore, meiosis can be viewed as a crucial stage in the life cycle of a plant and is responsible for generating genetic diversity. To generate desired plants with novel traits, this diversity or variability is frequently employed. In many cases, a hybrid plant outperforms a homozygous (parental) plant because it combines the best traits of the two parents. However, the creation of such hybrids is quite difficult. In order to evaluate the combining ability of hybrids, multiple putative parental lines are first produced at homozygous conditions by employing several generations of inbreeding and selection. The best pairs are then kept, and the corresponding parental lines produce a vigorous hybrid. Although hybrids were originally generated in maize during the 1930s, they are now employed in a wide variety of economically important plant species because they significantly surpass their parental inbreds. The main reason quoted for the wide-spread application of hybridization in breeding programs is because of the reason that hybrid seeds are easier and faster to growing homogenous plants