eChapters

Abstract

In afforestation and reforestation programs, seed has become a valuable commodity and its collection, identification, handling, processing, testing, storage and certification requires prudent planning. The research and development in seed science and technology have made significant progress in recent years. The quality of seed has been the subject of increasing interest among Forest Managers and the Scientists. Not every seed is suitable for sowing. Sometimes, the seeds do not develop into normal plants or the plants produced do not produce the expected harvest. This manuscript reviews, the progress made to-date in the forest tree seed germination and highlights future line of action.

Introduction

The term geographic information systems (GIS) has come to mean, variously, an industry, a product, a technology, and a science. As such, the term invokes different perceptions dependent on whether the viewpoint is that of the software developer, the system marketer, the data provider, the application specialist, or the academic researcher, among others. A newcomer to the field is likely to be bewildered by the multiple uses of the same term, or, seen alternatively, different definitions of the same term. For instance some find it distasteful to use of the conventional acronym GIS and prefer Geospatial Technology. With all the variety of perceptions predicting the future of GIS is a cumbersome business. The most certain inference we can gain from the available trends is, it is growing and is poised for further growth. Geotechnology along with Nanotechnology and Biotechnology is considered as of the three most promising growth industries for the near future.

Introduction

The protected cultivation aims to create a favorable environment for harnessing maximum potential even in adverse climatic conditions. Farmers in India are facing different challenges including small and fragmented land holdings, climate change, vagaries of weather, poor soil health and lack of knowledge and exposure to modern agricultural technologies. The protected cultivation farming is emerging as one of the better alternatives in agriculture and gaining foothold in India. However, for successful protected cultivation farming, one needs to understand the protected cultivation structures, climate control, production technologies, plant protection, water management, marketing, guidelines and policies. At present, various innovations are adopted under the greenhouse technology viz., Soil based cultivation and soil less cultivation. Soil less cultivation consist of solid media based and liquid media based. Solid media include coco-peat, vermiculite, perlite, rice husk, sawdust, mass grass, wheat - paddy straw, sand, gravels, rock wool etc. whereas liquid based media include hydroponic, aeroponic and aquaponics cultivation.

Previous Year Questions

1. Discuss the strengths and weaknesses of Public Food Distribution system in India. (8M, IFoS-2022)

2. Describe the vicious cycle of poverty and enlist the existing policy instruments for combating malnutrition. (20M, CSE 2022)

3. Enlist and explain the efforts of the GOI in streamlining the current levels of poverty (10 marks, CS 2022)

4. Enlist and explain the salient features of Public Distribution System as per the provisions of the National Food Security Act, 2013. (10M, CSE 2022)

5. Discuss the strengths and weaknesses of public food-grain distribution system in India. (8M, IFoS 2020)

1. Introduction

Intermediate moisture foods are semi moist foods that have some of their water bound by glycerol, sorbitol, salt or certain organic acids, thus preventing the growth of many microorganisms (Stewart et al. 2001). It is now well recognized that fruits and vegetables are dehydrated to an intermediate moisture level (20-50%) (Stewart et al. 2001; Purvi et al. 2003). As the intermediate moisture products are characterized by a semi moist consistency so these foods have enough moisture content to permit easy chewing but low enough water content to prevent spoilage production of intermediate moisture foods is based on an increased scientific understanding of the chemical reactions involved in traditional food preservation methods (Purvi et al. 2003).
There will be better retention of original flavor and texture compared to fully dried products, with concomitant reduction in bulk, weight and cost of packaging, transportation and storage. Such intermediate moisture foods are more appropriate for developing countries in view of their minimal processing requirements, stability under ambient conditions, safety, convenience, ease of nutrient content adjustment, energy savings and low capital investment. They are also eminently more suited than dehydrated or canned foods for military rations (FAO, 2005).

Introduction

Mithun (Bos frontalis), or ‘Gayal’ or ‘Eso’ or ‘Sial’ or ‘Sandong’ or ‘Wei’, is a rare bovine species, exclusively found in the northeastern hill region (NEHR) of India at an altitude of 300-3000 m. It plays an important role in the socio-economic and cultural life of indigenous tribes of Arunachal Pradesh, Nagaland, Mizoram and Manipur and is aptly referred to as the ‘Pride of Northeast India’ (Mukherjee et al. 2019). Besides India, mithun population is distributed to China, Bangladesh, Thailand, Bhutan, Myanmar, and Malaysia. The Indian mithun is a medium- to large-sized majestic ruminant with a characteristic jet-black body, an ash-colored forehead, and ‘white stockings’ on all the limbs. This unique animal has a special preference for salt feeding, is a skilled browser even in steep, hilly terrain, and does not need pasture land like cattle. Mithun is primarily reared under a free range system as an important source of lean meat, rich in amino acids, proteins, PUFA, etc. On September 1, 2023, the Food Safety and Standards Authority of India (FSSAI) officially certified the mithun as a food animal (Joshi et al., 2021; Lalchamliani et al., 2024; Ramesh et al., 2024). Compared to milk from other species, mithun milk has much larger quantities of fat, lactose, solids-not fat (SNF), calcium, important vitamins A, D, and E, essential amino acids, and polyunsaturated fatty acids (Devi et al., 2023).

“Knowledge Management is the process by which an organization identifies, creates, manages and delivers information to enhance workforce performance. The purpose of knowledge management is to provide information collected from employees, best practices, clients, competitors and other sources in a format that employees can use to the productivity and quality of their work”

Before attempting to address the question of knowledge management, it’s probably appropriate to develop some perspective regarding this stuff called knowledge. Consider this observation made by Neil Fleming [1996] as a basis for thought relating to the following points.

The present study was undertaken to study the trends of area, production and productivity of major fruit crops in the Himachal Pradesh state. The study was based on secondary data from 1974-75 to 2010-11. The data was collected from several government publications and website. To analyze the trend of area, production and productivity of major fruit crops in the Himachal Pradesh state, the linear, quadratic and exponential functional forms were used. To fit the trend, quadratic functional form was used due to its higher R² value as compared to other two forms. Besides these, compound growth rate, coefficient of variation and instability index was also estimated. The effects of area, productivity and their interaction towards increasing production were also estimated in the present study. The growing of major fruit crops was not risky in the Himachal Pradesh state as revealed by the lower coefficient of variation. The coefficients of variation (CV) of area, production and productivity of major fruit crops were less than 100.13 per cent. The instability indices for area, production and productivity for major fruit crops in the Himachal Pradesh state were positive and thereby indicating less risk for growing major fruit crops in the state. The increase in production is due to increase in area as well as interaction of area and productivity of fruit crops in the state. This may be due to the adoption of high yield variety seed of major fruit crops and adoption of improved methods by the farming community during last decade.

Abstract

Ethnobotany is the area of study which include direct interaction of human and plants. This communication compiles and evaluates 301 ethnobotanically important medicinal plants used by ethnic tribes for the treatment of different ailments living in Uttarakhand Himalaya. The state is a home of five major tribes, viz., Bhoxa, Bhotiya, Tharu, Raji, and Jaunsari. These tribal people have age-old relations with plants, and their indigenous knowledge passed from one generation to another. In this communication, a total of 90 plant families were reviewed and recorded that Asteraceae, Lamiaceae, Rosaceae, Fabaceae, Amaranthaceae Apiaceae, Combretaceae, Euphorbiaceae, Anacardiaceae and Malvaceae members are frequently used as medicinal plants. Total 68 roots of different species, followed by leaves of 55 species, whole plants of 29 species, fruits of 26 species and 28 types of seeds of different plants families used by locals for the treatment of various diseases such as fever, cold, cough, diabetes, skin problems, digestive problems and other associated ailments. The mode of application of herbal formulations varies from tribe to tribe. Herbaceous communities belonging to 160 species were the frequently used plant groups followed by trees, shrubs, and lianas. The decoction was recorded as the most frequently used method of preparation. Medicinal plants sold in the market was not primary for local people rather herbal plants locally available used as food, spice and beverages preparations. Therefore, there is a need for proper documentation and conservation planting of these unique medicinal plants growing in the Himalayas.

Introduction

The tribal population comprising 705 tribal communities spread over various states of India contributes 8.6 % of total India’s population (Census 2011). Their culture, traditions and practices interpenetrate almost all the aspects of Indian culture and civilisation. From the Aryan, Dravidian to the Indo-Tibetan languages, Indian tribal culture has also seen a tremendous merging of cultures within its own people. Some of these communities share similarities and yet are diverse in their religious and traditional beliefs. Some are prominent worshippers of the Hindu deities while others follow the path of the Christian missionaries. Animism and all forms of pagan worship are still prevalent in these communities. The societies by which these tribal communities survive are very patriarchal in their outlook although some tribal communities have gradually inherited the modern forms of society where each one is respected for his or her own set of views and beliefs. India’s tribal population is over-dependent on agriculture and forest related livelihood sources. 

Since the beginning of the Planning process, efforts have been made to ensure that the tribal people were included in the growth process. However, the strategy changed with each Five-Year Plan as new lessons were learnt from various developmental efforts. The First Five Year Plan emphasized the provision of additional financial resources through a community development approach to address the problems of tribal people rather than evolving a clear-cut tribal development strategy. Towards the end of the Plan (1954), 43 Special Multipurpose Tribal Development Projects (MTDPs) were created. These MTDPs could not fully serve the interest of the tribal people since the schemes were numerous and of a general nature. This approach continued during the second Five Year Plan. In the Third Plan, a different strategy for tribal development was evolved by converting the Community Development Blocks, where the concentration of tribal population was 66% and above, into Tribal Development Blocks (TDBs). By the end of the fourth Five Year Plan, the number of Tribal Development Blocks in the country rose to 504. The strategy of development through Tribal Development Blocks had its limitations as well, as it failed to address the cause of the tribal population of the country living outside the Tribal Development Blocks, which comprised more than 60% of the total tribal population. During the th on 5 Five Year Plan period, the exercise of identification of tribal majority blocks was undertaken. These were later constituted into 194 ITDAs/ITDPs in the country.

The present Tribal Sub Plan (TSP) strategy was initially developed by an Expert Committee set up by the Ministry of Education and Social Welfare in 1972 under the Chairmanship of Prof. S.C. Dube for the rapid socio-economic development of tribal people and was adopted for the first time in the Fifth Five Year Plan. The TSP strategy, with some modifications, continues till this day and the salient features concerning TSP for States, are given below:

INTRODUCTION

Tribulus terrestris L. (Gokhru) is an important industrial herb, belonging to family Zygophyllaceae which includes 285 species representing around two dozen genera. Members of this family are distributed in tropical and warm climates. Most species are shrubs, but some grow as small trees or herbs. T. terrestris is a mat forming plant that grows extensively in warm and dry areas all over the world. In China, India, Greece and other parts of the world, the species finds wide application in folk medicine, in polyherbal formulations and as food supplement for physical rejuvenation, to enhance muscle strength, sexual potency, etc. Amidst many positive claims, clinical trials are recommended to evaluate its reported toxicity in animals.

The Hans Krebs cycle, known by different names like the citric acid or tricarboxylic acid cycle, was named after the scientist Hans Krebs. The citric acid cycle is named after the citrate product formed in the cycle. The name tricarboxylic acid is given as citrate itself, which is a tricarboxylic acid due to the presence of three carboxyl functional groups (-COOH).
The tricarboxylic acid (TCA) cycle occurs in aerobic conditions and within mitochondrial ETC, involving various sequential oxidoreductase reactions. The cycle requires Acetyl-CoA (C2 molecule) and oxaloacetate molecule (C4 molecule) to begin with the formation of a citrate molecule (C6 molecule). Acetyl-CoA is generated from the pyruvate (glycolysis), the fatty acids (lipolysis), or by oxidative deamination of specific amino acids. The complete oxidation of a glucose molecule results in the end products like energy (ATP), CO2 and H2O. A molecule of Acetyl-CoA has two carbons. It is formed from a three-carbon pyruvic acid molecule generated from the glycolysis of a sixcarbon glucose molecule. Acetyl-CoA is the substrate for this cycle and is an energy-rich molecule having a thioester bond between coenzyme A and acetic acid.
8.1 Formation of acetyl-CoA from Pyruvic Acid
Pyruvate is obtained by glycolysis or the oxidation of glucogenic amino acids. The pyruvic acid produced in the cytoplasm crosses the inner membrane of the mitochondrion to enter the mitochondrial matrix, where it undergoes oxidative decarboxylation, forming Acetyl-CoA. Acetyl-CoA carries (carrier molecule) the acetyl group to the citric acid cycle. It also links various metabolic products with the TCA cycle. Such products can be from the EMP cycle, beta-oxidation, and oxidative deamination of amino acids. Oxidative decarboxylation of pyruvic acid needs a complex enzyme system known as pyruvate dehydrogenase

Introduction

Trichoderma, a genus of fungi found ubiquitously in soil, has garnered significant attention as a potent bio-control agent for managing soil-borne diseases in flowers. These diseases, caused by pathogenic fungi like Fusarium, Pythium and Rhizoctonia, can devastate floral crops, leading to substantial economic losses. Trichoderma species combat these pathogens through multiple mechanisms, including mycoparasitism, competition for nutrients and space, production of antimicrobial compounds and enhancement of plant immunity. By colonizing root surfaces, Trichoderma forms a protective barrier against harmful pathogens, effectively reducing their impact. Additionally, Trichoderma’s ability to decompose organic matter and improve soil structure further contributes to plant health and vigor. Its use aligns with sustainable agricultural practices, offering an eco-friendly alternative to chemical pesticides, which can have detrimental environmental effects and lead to resistance in pathogens. The application of Trichoderma not only promotes healthier, more resilient flower crops but also supports the broader goal of reducing reliance on synthetic agrochemicals. As research continues to unveil the full potential of Trichoderma, its role in integrated disease management strategies is poised to expand, making it an invaluable tool for floriculture and sustainable agriculture worldwide.

1. Introduction

Agriculture is prime source of living for rural people world wide effective in raising incomes among the poorest compared to other sectors. In Indian economy horticulture has been recognized as one of the most potential agriculture endeavours in terms of exponential growth. The Horticultural crops viz., fruits counting nuts, vegetables with potato, ornamental plants plus cut flowers, spices, plantation crops and medicinal and fragrant plants has developed a prime promoter for monetary growth in numerous of the states in the nation and it pays 30.4% to GDP of agriculture (ICAR website).

Etiological Agent

Trichomonas gallinae, a flagellate protozoan. Strains vary in pathogenicity. The disease continues to be of significance in pigeons and doves. It has also been reported in raptors.

1. Country Profile
 
Trinidad & Tobago comprises two islands with Trinidad being by far the larger of the two. They have a combined land area of 5,130 sq. km with Trinidad being 4,825 square kilometer. Over 95 per cent of the population of 1.3 million lives in Trinidad. Tobago’s affairs are, for the most part, administered separately through the Tobago House of Assembly, and therefore, the description of it’s extension system is reported separately.

The CSO report (CSO, 2004) listed Trinidad as having approximately 18,142 farmers who are mostly male (85 per cent) and average age of 52 years. These farmers farm on 84,900 hectares of arable land. The majority of this land (72.5 per cent) is under crop cultivation. While most of this land is dedicated to Sugarcane production, tree crops and vegetable cultivation are also important commodities. The rest of the farmland is used for Livestock (10.6 per cent), mixed farming (16.3 per cent) and some small amount of fisheries production. The majority of farms (63 per cent) are less than 5 hectare in size with 22  per cent being less than 0.5 hectare. Agriculture is mainly rain- fed but increasing amounts of farmland are being irrigated. Trinidad has six months of dry season (January-June) and an annual rainfall of 2010.9 mm of rain.

1. INTRODUCTION

Agricultural Extension in Trinidad and Tobago is searching for a way to effectively use Information Communication Technologies (ICTs) to improve the delivery of services to the farming community. The notion of a demand-driven extension service seems to appeal to the Ministry of Agriculture, and many believe that ICT has the potential to become a primary enabler to improving the extension service.

The country has a population of 1.3 million with one of the highest per capita incomes in Latin American and the Caribbean (US$16,090 in 2007). Oil and gas account for 40 per cent of GDP and 80 per cent of exports. The unemployment rate is 5 per cent, and the labour market is characterized by chronic shortage, high price and low productivity particularly in the agricultural sector (Government of the Republic of Trinidad and Tobago, 2008). One of the government’s objectives is to develop a vibrant agriculture sector to reverse the decline of agriculture. The government’s operational plan 2007-2010 identifies a model for transformation which includes joint ventures with the private sector, investments to develop farms via Government to Government arrangements, and improvements in infrastructure and communication (Republic of Trinidad and Tobago, 2007).

ABSTRACT

This paper takes cues from the previous paper on the evolution of IPR concepts and attempts explaining the nuggets of TRIPS and analyzes the current trends in its implementation.

Introduction

As the TRIPS Agreement signifies stronger protection of conventional and new areas of intellectual property, the question that how implementation of TRIPS could influence developed and developing countries is to be addressed. The implications of such influence have far reaching consequences in terms of socio-economic development of Nation States, including geopolitical strategies and hence, a proper understanding on the plausible influence is essential.

Major cucurbits grown in India are cucumber, watermelon, muskmelon, ash gourd, pumpkin and squashes, snake gourd, ridge gourd, smooth gourd, bottle gourd, round gourd, bitter gourd, pointed gourd, ivy gourd,pointed gourd and oriental pickling melon. After independence,a lot of breeding work were done in these crops at many research institutes in the country which  resulted in  release of several high yielding/disease resistant varieties/hybrids.

Being warm season crops, cucurbits are tropical in origin, mostly in Africa, Tropical America and Asia. Flowering in cucurbits normally start in 40 to 45 days after sowing depending on weather conditions. Sequence of flowering follows a set pattern, namely the first 4 to 6 flowering nodes would bear staminate flowers and later pistillate flowers appear. Many sex forms are seen in cucurbits viz., monoecious, dioecious, gynoecious,trimonoecious, gynomonoecious and andromonoecious. Sex modification is also possible in cucurbits by exogenous application of plant growth regulators. GA₃ and AgNO₃ are used for inducing male flowers in gynoecious lines. Conversely,ethrel and TIBA  are used to promote greater number of female flowers. This kind of sex modification is more useful and practicable in  cucumber and bottle gourd where continuous and simultaneous flowering, fruit set and fruit picking take place.

Mango occupies a pre-eminent place amongst the fruit crops grown in India and is acknowledged as the ‘King of Fruits’. Mango is the pride of the garden and one of the choicest fruits known to mankind. Mango possesses unique nutritional and medicinal qualities apart from being a rich source of vitamins A and C. Young and unripe fruits are utilized for culinary purposes, preparing pickles, chutneys because of their acidic taste as well as for extraction of tannin and other astringent products. Ripe fruits are a delicacy for the table and are utilized in preparing squash, juices, nectar, jam, cereal flakes, custard powder, baby food, mango leather and toffee. Canned mango slices and pulp are indeed very popular. The inside kernel of the stone being rich in carbohydrates, calcium and fat, can be used as a source of food for certain industrial purposes.

BANANA

Musa paradisiaca L

F. Musaceae

Banana, an antique food crop of the world is known as the ‘Apple of the Paradise’ and botanically named as Musa paradisiaca. Plants of the Musaceae family as a whole are strictly old world plants which are believed to be originated in the hot, tropical regions of S. E. Asia (Simmonds, 1962). Malaysia is considered as the primary centre of origin of M. acuminata (AA and AAA cultivars) and from there, it spread to India and Burma where M. balbisiana is the native. In the IndoBurman peripheral area, natural hybridization of acuminata and balbisiana types occurred and thus India is regarded as a major centre of origin for more the 300 types (AB, AAB and ABB cultivars) out of the 600 types of Musa germplasm. Mention of plantain in Ramayana (2000 BC), Arthsastra (250 BC) and in Chilappathikaram (500 AD) suggests the antiquity and long period of domestication of banana fruit in India. Present day type/cultivars were originated through natural hybridization, mutation and polyploidy breeding and perpetuated through vegetative propagation.

It was introduced to East Africa even before Christ and to the Mediterranean region about 650 AD. It reached the New World in 1516 AD and its cultivation is distributed throughout the warmer countries situated in the region between 30⁰ N and 30⁰ S of the equator. Now banana is grown widely in 130 countries like Brazil, China, India, Ecuador, Columbia, Venezuela, Florida, Panama, Cuba, Uganda, Tanzania, Zaire, Ivory Coast, Kenya, Honduras, Nigeria, Fiji, India, Philippines, Thailand, Indonesia, Sri Lanka, Australia etc. and total (world) area is 88.5 lakh ha with a production of 97.2 million tonnes. Fifty per cent of the global production is from India, Ecuador, Brazil and China.

Tropical plum (Spondias mombin) also known as yellow mombin, hog plum, and java plum, is a deciduous fruit species widely spread in the tropics. This species is evaluated for its fruit as an unconventional source of vitamins A and C, which are used for making juices, ice creams and jellies. This plant also has medical importance.
 
It is a graceful tree of the family Anacardiaceae, a native of tropical America. It was introduced into India for edible fruit and also to serve as fencing. The fruit flesh (48% on  weight of fruit) contains: total solids 11.47%, protein 1.38%, fat 0.57%, acids (astartaric) 1.50%, reducing sugars 9.41%, sucrose nil, fibre 1.17%, and mineral matter 0.66%. The seeds are eaten when tender. The fruit is a good source of minerals and vitamin B1 and C.

Introduction

The tropical root and tuber crops are comprised of crops covering several genera. They are staple foods in many parts of the tropics, being the source of most of the daily carbohydrate intake for large populations. These carbohydrates are mostly starches found in storage organs, which may be enlarged roots, corms, rhizomes, or tubers. Many root and tuber crops are grown as traditional foods or are adapted to unique ecosystems and are of little importance to world food production. Others such as cassava (Manihot esculenta Crantz) and white-fleshed sweet potato (Ipomoea batatas L.) are known worldwide. Several of these crops have been termed under-exploited and deserving of considerably more research input

Potato and Banana chips: Potato chips are one of the popular snack foods consumed throughout the country. Chips are mostly prepared by small scale artisans / confectioners, and sold in plastic film or paper packs. Recently, however some of the companies have installed plants having relatively large capacities and have started marketing chips in attractive packs. The fat content generally ranges between 25-40% and moisture content between 2-4%. Potatoes having high total solids, low reducing sugars and low amylase activity are most suitable for chips manufacture.

Banana chips are prepared from varieties rich in starch having very low levels of soluble sugars and polyphenol - oxidase activity. These are mostly processed and marketed in Southern States especially in Kerala. Previously, the chips were fried in coconut oil, but now other vegetable oils are also used in their processing. Relatively, banana chips are harder in texture than potato chips.

Tropical root and tuber crops are the third important group of food crops after cereals and pulses. Tuber crops hold a premier position among food crops in the tropical and subtropical regions of the world. These crops are rich in starch and calories and have great potential in meeting the food and energy needs.  More than 840 million people do not have enough food to meet their basic daily energy needs. Far more - an estimated 3 billion - suffer the insidious effects of micronutrient deficiencies leading to hidden hunger. Apart from its popular use as food, tubers also find an important space in cattle feed and agro industries sector.Tropical tuber crops possess high photosynthetic ability coupled with the capacity to yield under marginal lands, adverse biotic and abiotic stress etc (Ravindran et al., 2008).

Tomato, the ‘Apple of Love’ or ‘Golden Apple’ is one of the most popular, widely grown and highly praised vegetable in the world. In India, commonly referred as ‘Poor Man’s Orange’, has wider coverage in comparison to other vegetables. Tomato universally treated as ‘Protective Food’, is eaten raw or cooked or in processed form (soup, juice, ketchup, puree, paste and powder, green tomato - pickles and preserves) or it supplies vitamin C and adds variety of colours and flavours to food. It is a very good source of income to small and marginal farmers and contributes to nutrition of consumers. Tomato seed contains 24% oil used as salad oil and in manufacture of margarine. By virtue of its many attributes, it is considered as a favourite crop for research in physiology and cytogenetics, all over the world. Tomato is also rich in medicinal value. The pulp and juice are digestible, mild aperient, a promoter of gastric secretion and blood purifier. Tomato, a primary source of lycopene, showed significant association with low prostate cancer risk and cancers of digestive tract. It is one of the best vegetables which keeps our stomach and intestine in good condition. Tomato juice has become an exceedingly popular appetizer and beverage.

Introduction

Trout farming is considered as one of the oldest forms of commercial fish production and dates back to 400 years in Europe and about 150 years in US (Hinshaw, 1990). In India, the upper Himalayan region and Western Ghats are the areas where trout culture and farming are restricted due to suitable climatic conditions. The UT of J&K, especially Kashmir region plays a major role towards trout culture, thus being major contributor of trout as well. In Kashmir, the introduction of trout started in the year 1899 with the arrival of first batch of Brown trout (Salmo trutta fario) ova of 10,000 eyed eggs from England (UK). This introduction of trout eggs to Kashmir was assisted by the Duke of Bedford. Woefully, this batch of 10,000 eggs expired on the way due to the unavailability of air transport. Then, the second batch of trout ova arrived in the year 1900 in a magnificent condition from Howeiton in Scotland, assisted by Mr. J.S. Macdonall consisting of 1800 fry. Out of these 1000 swim-up fry were successfully reared up to the adulthood and the first spawning or eggtaking of Salmo trutta fario, was done in December 1905 at Harwan near Srinagar (Kashmir) by F. J. Mitchell and rest of 800 fry were reared at his personal residence in Bhag - i - Dilawar Khan in the heart of city near Khankah-i-Moula. In 1905-1906, Mitchell succeeded in establishing a regular Trout Hatchery at Harwan Srinagar Kashmir, having a capacity of 100,000 green eggs. Since then brown trout has established itself throughout the Kashmir and parts of Jammu notably in Baderwah and Poonch providing f ly and spoon fishing year after year to thousands of anglers visiting the state.It was from Kashmir that brown trout spread to other sections of the Himalayas. In 1912, Mitchell succeeded in hatching and rearing rainbow trout eggs from a consignment presented to him by the Bristol Water Works England. Today J&K Fisheries Department has achieved remarkable success in trout culture (Hassan and Pandey 2012). In the year 1984, Trout Fish Farming Project was established at Kokernag under cold water fisheries by the assistance of European Economic Community, serving as mother unit for the production of quality seed of Rainbow trout and Brown trout.This project provided a major thrust to the trout fisheries in the UT of J&K from last two decades.Besides this, there is another trout hatchery at Laribal Srinagar where quality trout seed of rainbow trout and brown trout is being produced (Hassan and Pandey 2012).

INTRODUCTION

Potato is a vegetatively propagated crop mainly through tubers. Seed is the costliest input, which constitutes nearly half of the production cost. Due to the high cost of seed, seed replacement rate is low, which results in build up of various tuberborne diseases.To maintain high tuber yield, multiplication is done through “Seed Plot Technique” (SPT), which involves seed production in low aphid pressure period to minimize transmission of viruses and also adopt a set of cultural practices aimed at minimizing disease spread. The production of healthy seed tubers through SPT is expensive and the low rate of tuber multiplication (normally 68 times) provides only a limited quantity of quality tubers. Further, the low aphid areas suitable for producing healthy seed in the country lie in the northern plains and high hills (> 1800 m above mean sea level). Changing climate scenario is likely to shrink the window for potato cultivation and increase pathogen/vector attacks across the country thereby seriously limiting quantity and quality of seed in the country. An alternative technology of true potato seed (TPS) or use of botanical seed has shown great potential for producing both diseasefree healthy (quality) and cheaper planting materials for commercial potato production. This chapter describes the classical TPS technology and two novel potential TPSbased technologies in potato propagation.

True protein nitrogen is also termed a Albuminoid nitrogen in animal feeds and fodders and human foods. If material (Such as seeds, seed residue or oil cake) is rich in alkaline phosphates, 1-2 ml of 10 percent solution of potash alum is added to decompose them. If this is not done Cu3 (PO4) and free alkali may be formed and the protein-copper precipitate may partially dissolve in the alkaline liquid.

Citrus reticulata

• A highly polyembryonic species of Chinese origin
• Mandarin occupies 43% area and 42% under citrus spp.
• Seeds of citrus plants do not have dormancy so they should be sown immediately after extraction.
• Blooms three times a year.

  a) February flowering – Ambe bahar

  b) June flowering – Mrig bahar

  c) October flowering – Haste bahar

• Mandarins are highly susceptible to waterlogging.
• Rootstock for HDP – Troyer citrange (1.8 × 1.8 m2)
• Best time for pruning – Last winter or early spring.

Cell counting is the fundamental techniques in various fields of biology, medicine and biotechnology.

Importance of cell counting

1. Research: Cell counting is a critical component of biological and medical research. It helps scientists understand the behavior of cells in various contexts, such as studying cell proliferation, differentiation, and response to stimuli.

2. Disease diagnosis: Monitoring various medical conditions, including infections, autoimmune diseases, cancer and blood disorders. Complete blood counts (CBCs) are routinely used to assess the levels of different blood cell types and assess disease conditions.

3. Stem Cell Research: Cell counting plays a significant role in stem cell research, where precise quantification of stem cells is necessary for various applications, including regenerative medicine and tissue engineering.

4. Cell Culture: Cell counting is integral part to determine seeding density. Seeding of cells to available surface area for growth is important consideration for successful culture.

5. Cell-Based Assay: The cell-based assays are used for drug screening, toxicity testing, and evaluating the efficacy of new compounds. Accurate cell counts are essential to ensure the reliability of assay results.

Kingdom: Protozoa
Phylum: Euglenozoa
Class: Kinetoplasta
Order: Trypanosomatida
Family: Trypanosomatidae
Genus: Trypanosoma
Members of the genus Trypanosoma are responsible for trypanosomosis in animals and human beings and are found in the blood vascular system and tissues all over the world. All the species of trypanosomes are transmitted biologically or mechanically through an arthropod vector except T. equiperdum, which is transmitted through coitus in equines.

Abstract

The recent tsunami occurred on 26^thDecember 2004, caused great devastation along the east coast of Tamil Nadu, India. As the said tsunami has caused colossal damages, the impact assessment has become essential for tsunami mitigation measures. In this context, the extent of tsunami inundation, loss of lives, property loss and damages to physical and natural resources have been assessed in the tsunami affected area between Ennore and Mahabalipuram along the east coast of Tamil Nadu.

IRS LISS III PAN merged satellite data and IKONOS data were used for mapping the pre-tsunami geomorphology and land cover conditions and IRS-P6 PAN merged satellite data were used to map the post – tsunami terrain conditions including the inundations. From the study it is inferred that wherever buildings and population are denser the loss is more. Hence, vertical expansion may be needed as an alternative or to supplement horizontal expansion. Bio-shield along coastal areas, involving raising of mangrove forests, planting of casurina, salicornia, palms, bamboo and other tree species and halophytes which can grow near the sea will serve as speed-breakers for the up rising waves.

Keywords: Tsunami, Damage Assessment, Mitigation Measures, Chennai region.

Introduction

On 26^th December 2004, the Indian coastline experienced the most devastating tsunami in recorded history. The tsunami was triggered by an earthquake of magnitude Mw 9.3 at 3.316ºN, 95.854°E off the coast of Sumatra in the Indonesian Archipelago at 06:29 hrs making it the most powerful in the world in the last 40 years. In recent years increasing the vulnerability to natural disasters of developing countries is a major reason for concern. The potential loss of human lives and property due to natural hazards is very high in the urban areas of these countries. The Information obtained from conventional tsunami hazard maps does not always provide sufficient data for users .needs. The difficulty in presenting more significant information on tsunami hazard maps in conventional paper format is due to the limited available physical space of that format. Printing more information on such paper maps tends to confuse rather than provide more needed information to users. Furthermore, these kinds of maps provide little opportunity for users to ask for additional information, to determine the relationships between different kinds of information and important quantitative analyses. Furthermore, Tsunami hazards have important temporal attributes. Presenting these attributes on the map; e.g. the sequence of volcanic eruptions in a region or the frequency of tsumani in a particular area during a particular period of time is very difficult.

Abstract

Ennore is an industrial region having many industries on chemicals, fertilizers, refineries etc., discharging their effluents into the Buckingham canal. Present study focuses on the impact of tsunami on water quality of Buckingham Canal segment found to the north of Chennai city, Tamil Nadu, India, in addition to the human interferences. Water samples were collected from surface and near bottom at five locations covering about 20km stretch of the Buckingham Canal during high tide on the spring tide day before (December 2004) and after (January 2005) the mega tsunami. Various water quality parameters measured were pH, Temperature, Salinity, Dissolved Oxygen, Suspended Particulate Matter, Nutrients and Chlorophyll. The maximum depth observed in the canal was 2.5m in December, whereas a shallow depth of less than 0.5m was recorded in January. The water quality analyses confirmed the incursion of saline water (upto 32ppt) into the Canal. Not much variations were observed in Dissolved Oxygen and pH. Because of the organic pollution in the canal, the water was rich in nutrients before tsunami, whereas due to the large quantity of seawater invasion, dilution had occurred after tsunami. High turbidity was observed in January 2005 indicating the tsunami induced disturbance and resuspension of the sediments from sea bed.

Keywords: Tsunami, Ennore, Tamil Nadu, Buckingham Canal.

15.1 Introduction

A tsunami is a series of waves created when a body of water, such as an ocean, is rapidly displaced. Earthquakes, mass movements above or below water, volcanic eruptions and other underwater explosions, landslides, large meteorite impacts and testing with nuclear weapons at sea all have the potential to generate a tsunami. The effects of a tsunami can range from unnoticeable to devastating. The term tsunami comes from the Japanese words meaning harbor (“tsu”,) and wave (“nami”,). The term is created by fishermen who returned to port to find the area surrounding their harbor devastated, although they had not been aware of any wave in the open water. Tsunamis are common throughout Japanese history; approximately 195 events in Japan have been recorded.

A tsunami has a much smaller amplitude offshore, and a very long wavelength (often hundreds of kilometers long), which is why they generally pass unnoticed at sea, forming only a passing “hump” in the ocean (Fig. 15.1). Tsunami have been historically referred to as tidal waves because as they approach land, they take on the characteristics of a violent onrushing tide rather than the sort of cresting waves that are formed by wind action upon the ocean (Iwan, W.D., 2006).

Abstract

During natural disasters, mostly panic and curiosity lead to greater causalities. But the tsunami is such a disaster which no one have witnessed during their life time nor heard of from their ancestors. On 26, December 2004, tsunami has struck all of a sudden many South Asian coasts including the east coast of Tamil Nadu and Andhra Pradesh causing greater devastation and causalities. This historical event has taught us many lessons and the paper deals with some aspects related to tsunami from the citizen’s view point.

Keywords: Natural calamities, Tsunami mechanisms, Mitigation strategies, Citizen’s perspective.

INTRODUCTION

The tsunami that ravaged the coasts of South India had left tell tale signs that affirm the need for early warning systems as well as well-planned mitigation measures for the benefit of the affected. Over the last 12 months, since the tsunami struck the east coast of India on 26 Dec. 2004, numerous seminars, discussions, programmes and project proposals have been deliberated on various aspects that deserve attention. Government agencies, self-help groups and non-governmental organizations (NGOs) have done commendable post-tsunami work. All sections of the society have responded both emotionally and rationally to the event in an unprecedented manner. In retrospect, to the informed citizen – one who has heard about the event, read about it and discussed it with others, though not have had the ‘experience’ of the natural disaster by himself / herself - what do all these mean ? the tragedy and its aftermath. This paper documents the issues that a citizen would like to ponder over so as to understand the various dimensions of the post-tsunami activities and draw a few lessons that the tragedy had taught us. The major issues pertain to (i) the mechanisms (ii) the coastal vulnerability and the need for assessment (iii) mitigation strategies (iv) media exposition (v) communication networking and (vi) educational facilitation.

The phenomenon we call tsunami is a series of large waves of extremely long wavelength and period usually generated by a violent, impulsive undersea disturbance or activity near the coast or in the ocean. A tsunami is a very long-wavelength wave of water that is generated by sudden displacement of the seafloor or disruption of any body of standing water.  Tsunami are sometimes called “seismic sea waves”, although, as we will see, they can be generated by mechanisms other than earthquakes.  Tsunami have also been called “tidal waves”, but this term should not be used because they are not in any way related to the tides of the Earth.  Because tsunami occur suddenly, often without warning, they are extremely dangerous to coastal communities.

Thrips: Thrips tabaci : Tuberose thrips Franklinella schultzei: Thripidae

These minute insects, preferring hot humid weather, rasp and suck the cell sap, causing bronzing, withering and drying up of leaves and flowers. This is the most serious pest on tuberose. Damage to young plants results in stunted growth.

Introduction

Two-thirds of the population make their living from agriculture, which also supplies raw materials for other businesses. To feed the growing population and decrease hunger and poverty, agricultural output must be increased. Various farming systems coexist in India depending on the resources available, agricultural methods, and location-specific demands of people to meet their needs for food, fuel, and fibre. An intricate, interconnected matrix is the integrated farming system (IFS) of soil, plants, animals, tools, equipment, labour, capital, and other inputs that are partially controlled by farming families, with varied degrees of political, economic, and institutional power and resting elements that affect farms. In India, the size of farm holdings has dropped over time.

Tuber crops grown in India include Cassava, Sweet potato, Dioscorea, Colocasia, Amorphophallus and minor tuber crops like Chinese potato, Arrowroot, Canna, Yam bean etc. Biotechnology can contribute solution to the major problems and realize greater benefits for tuber crops. Traditional breeding in tuber crops is difficult due to their heterozygous nature, low fertility, out crossing coupled with strong inbreeding depression. Many of the agronomic traits are polygenic and/or recessive which make breeding for such characteristics complicated. Biotechnology is a powerful tool to complement traditional breeding. Developments in the field of tuber crops biotechnology are discussed below.

Root and Tuber crops are the most important food crops of man after cereals. Tuber crops are efficient producers of carbohydrates especially under suboptimal conditions of rainfall, fertility and low input conditions encountered in tropics. The group contributes about 6 % of the world’s dietary calories. In fact, one out of 6 kg of human food comes from roots and tubers. Tuber crops find an important place in the dietary habits of small and marginal farmers especially contributing to food security of tribal populations. Tuber crops grown in India include Cassava, Sweet potato, Dioscorea, Colocasia, Amorphophallus and minor tuber crops like Chinese potato, Arrowroot, Canna, Yam bean etc. The biotechnology can contribute to the solution of the major problems and realize greater benefits for tuber crops.

1. Tuber crops Starches

Tropical root and tuber crops are rich sources of starch (Ghosh et al., 1988; Chadha and Nair, 1994; Moorthy, 1994) besides many vitamins, minerals etc (Table 1). In addition to food applications, they have important industrial uses; especially, cassava in view of the considerable starch content. Cereals form the major source of commercial starches in most developed countries, but cassava (Manihot esculenta Crantz) and to a lesser extent, sweet potato (Ipomoea batatas Lam.) tubers are used for starch extraction in India, Brazil, Thailand, Indonesia, Philippines and China.

Tropical tuber crops are an important group of subsistence crops in tropical and subtropical zones.  Carbohydrates synthesised and stored in the form of starch in underground tubers are used as food by millions in under-developed countries.  It is also used as raw material by many industries.  Cassava, sweet potato, Chinese potato, edible aroids like elephant foot yam, taro, tannia and yams like greater yam, lesser yam and white yam are major tuber crops  grown in India.

Tuber crops are mainly grown as rainfed with minimum cost of production.  All are propagated through vegetative means and require fertile and well drained loose soil for proper root development. All roots crops require high dose of potassium for high productivity.

6.1. Potato (Solanum tuberosum L.)

Potato, Solanum tuberosum, is a starchy, tuberous crop belonging to the Solanaceae family. The name potato originally referred to a type of sweet potato, batata, in Spanish. Potatoes are occasionally referred to as “Irish potatoes” or “white potatoes” in the United States, to distinguish them from sweet potatoes. The potato was believed to be first domesticated in the region of southern Peru and extreme northwestern Bolivia between 8000 to 5000 BC. The potato diffused widely after 1600, becoming a major food resource in Europe and East Asia. Greater geographic mobility of farmers led to the rapid spread of potato cultivation throughout China, and India. China is now the world’s largest potato producer and nearly one third of the world’s potatoes are produced in China and India.

Today potato is the fourth major food crop after rice, wheat and maize in the world. In India potato is a very important crop and are mainly produced in the states of Uttar

Cultivars/Varieties: Most of the improved potato varieties were developed by CPRI, Kufri, Shimla. Most of the earlier varieties released as clonal selections derived from foreign varieties have been replaced with high yielding new varieties from the same institute. The popular varieties under cultivation now are Kufri Sindhuri, Kufri Chandramukhi, Kufri Jyothi, Kufri Lauvkar, Kufri Muthu, Kufri Dewa, Kufri Badshah, Kufri Bahar, Kufri Lalima, Kufri Swarna, Kufri Jawahar, Kufri Ashoka, Kufri Megha, Kufri Sutlej, Kufri Pukhraj, Kufri Chipsona-1, Kufri Chipsona-2 and Kufri Giriraj.

Uses

Potatoes are used in different ways like boiled, fried, baked and roasted. Potatoes are used to brew alcoholic beverages such as vodka, potcheen, or akvavit.They are also used as food for domestic animals. Potato starch is used in the food industry as, for example, thickeners and binders of soups and sauces, in the textile industry, as adhesives, and for the manufacturing of papers and boards. Many companies are exploring the possibilities of using waste potatoes to obtain polylactic acid for use in bioplastic products; other research projects seek ways to use the starch as a base for biodegradable packaging. Potato skins, along with honey, are used in folk medicine for burns in India. Burn centers in India have experimented with the use of the thin outer skin layer to protect burns while healing. The potato is best known for its carbohydrate content, which is in the form of starch. Because of its high starch content, it is a staple food in several parts of world including in some parts of India. A small but significant portion of this starch is resistant to digestion by enzymes in the stomach and small intestine, and so reaches the large intestine essentially intact, thereby, increasing its physiological significance. Besides these the potato also provides various other nutritional constituents to the body. Potato is also processed into various products like chips, powder, pappad, savory items.

Tropical tuber crops are an important group of subsistence crops in tropical and subtropical zones. Carbohydrates synthesised and stored in the form of starch in underground tubers are used as food by millions in under-developed countries. It is also used as raw material by many industries. Cassava, sweet potato, Chinese potato, edible aroids like elephant foot yam, taro, tannia and yams like greater yam, lesser yam and white yam are major tuber crops grown in India.

Tuber crops are mainly grown as rainfed with minimum cost of production. All are propagated through vegetative means and require fertile and well drained loose soil for proper root development. All roots crops require high dose of potassium for high productivity.Cassava is the most important starchy root crop grown in the tropics and is mainly cultivated in southern peninsular India. Introduced during seventeenth century by Portuguese, the crop played a significant role to overcome food shortage among the low income group of people in Kerala. Underground tuber is rich in starch and mainly consumed after cooking. Processed products like chips, sago and vermicelli made of tapioca are also popular in the country. Being easily digestible, it forms an important ingredient in poultry and cattle- feeds. It is also widely used for production of industrial alcohol, starch and glucose.

ABSTRACT

Role of cytokinins in the regulation of sink development in potato was studied by transgenic approach. Transgenic potato plants over-expressing Agrobacterium native ipt (gene for isopentenyl transferase, rate limiting enzyme in cytokinin biosynthesis) under the transcriptiona l regulation of tuber specific patatin promoter were developed. Transformants obtained showed normal phenotype, while the cytokinin levels showed significant increase over the control plants for the various cytokinins tested, viz., trans zeatin riboside (tZR), dihydrozeatin riboside (DHZR) and isopentenyl adenosine (iPA). The primary transformants were hardened and tested under green house conditions. Green house studies showed a significant increase in the number of tubers in ipt transformants when compared to the wild plant as well as GUS transformant. However, the total weight of tubers did not show appreciable difference between transformants and control plants. Reduction in the weight of individual tubers appears to be due to source limitation.