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INNOVATIONS IN HORTICULTURAL SCIENCES

Prof. K.V. Peter
  • Country of Origin:

  • Imprint:

    NIPA

  • eISBN:

    9789389547030

  • Binding:

    EBook

  • Number Of Pages:

    686

  • Language:

    English

Individual Price: 3,995.00 INR 3,595.50 INR + Tax

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The book is a compilation of 19 chapters authored by eminent scientists in the area. There is need to break yield barriers by GM Technology, keeping biosafety intact and as per standards. Use of biotechnology to enhance productivity is elaborated in two chapters. Water being a limiting factor is being studied wholistically. Soil fertility and its management are critical to crop productivity. Soil as a living entity needs to be viewed as the basics of horticulture. Root stocks play a vital role in rejuvenation, anchoring and better nutrient absorption. Biotic stresses like nematode pests and an array of viruses make crop growing highly challenging. Breeding methods are now available to develop varieties and hybrids which withstand stresses-biotic and abiotic- An exposure to basic sciences like plant physiology is needed to understand the source-sink ratios in crops. Marketing and trade are areas less taught but assuming top importance now. Horticulture is incomplete without study on pollinators like bees.

0 Start Pages

Preface Food Security as envisaged in the National Food Security Act-2013 will be laudable only along with Nutrition Security. Horticultural Sciences play a major role in providing nutrition security at affordable costs in addition to the aesthetic roles. Horticulture is an integral part of livelihood security by enhancing purchasing power through medium and small scale enterprises. Despite the favorable agro-climatic conditions, rich crop biodiversity and availability traditional wisdom, the per capita consumption of fruits and vegetables are much lower resulting in many disorders and nutrient deficiency diseases like anaemia, diabetes, low body weight (wasting), underweight and stunted children. Production and productivity of horticultural crops are lower though India is the second largest producer of vegetables and fruits in the world next to China and Brazil respectively. India also possesses the worlds second largest domestic market for horticultural crops and value added products. Horticultural research, education and extension received attention even prior to India's independence in 1947 and the emphasis continues. The transformation of horticulture from the status of an art and culture to a science - Horticultural Sciences - is recent and aims ultimately at a zero hunger India where citizens are healthy and wealthy. Science of horticulture is the backbone emanating primarily from Research Institutes under the Division of Horticulture ICAR, State Agricultural Universities, CSIR Laboratories, selected laboratories under DOAE, DRDO, DOS, DST and AYUSH.

 
1 Genetically Modified (GM) Crops Global Status
Hari Har Ram

The potential yield levels in major crops have reached almost to a plateau. The current world population of 7 billion is likely to reach 9 billion by 2050 putting huge pressure to produce more from the available arable lands as acreage of major crops is predicted not to increase any further. The deficit of food requirements will have to be met partly by bridging the gap between farm yield (the average yield of the crop in a particular region/country/world) and the potential yield (the yield obtained usually in the breeders’ plots grown across the region of interest with the best yielding new varieties and without biotic stresses as diseases and pests, and abiotic stresses such as drought, flooding, salinity, heat and cold and partly by increasing potential yield per se.

1 - 38 (38 Pages)
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2 Genetically Modified Vegetable Crops
Govind Kumar Rai, Major Singh and Prakash S Naik

Transgenic plants are those plants, in which a foreign gene(s) has/have been introduced and stably integrated into the genome. The inserted gene sequence is known as Transgene. Almost three decades ago, in early 1983, the first cloning of the recombinant genes in tobacco signified the beginning of plant molecular biology in its own right. Since then the number of genes transferred and studied in plants has increased exponentially and the first transgenic crop (‘FlavrSavr’ tomato) was commercialized on May 18, 1994. However, the impact of transgenic crops was perceptible only after 1995 when transgenic maize, soybean and cotton were released for cultivation in USA.

39 - 78 (40 Pages)
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3 Genetic Improvement of Rubber
Kavitha, K Mydin

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.

79 - 104 (26 Pages)
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4 Genetic Improvement of Cocoa
Elain Apshara, S.

Cocoa (Theobroma cacao L.) represented as ‘Food of Gods’ is considered as an important beverage crop next to Tea and Coffee. The economic produce of cocoa is the bean, when it is fermented and dried, become the source for chocolate. Cocoa is native to Amazon basin of South America and is domesticated and distributed to different regions by the natives Mayas, Aztecs and Pipil- Nicaraos (Wood and Lass, 1955; Young, 1994) who consumed it as an energy drink called ‘xocoatl’ by roasting and grinding cocoa beans. When Spanish conquered Mexico in 16th century they took cocoa to Europe which is christened as ‘chocolate’ the worlds’ favourite food. From then on cocoa spread to many other countries (Wood, 1991). According to World Cocoa Foundation, currently 40–50 million people depend on cocoa for their livelihood and the production is 3.97 mt in which Africa contributes 71%, Latin America 14% and Asia and Oceania 14% (Jean Marc Anga, 2013). Ivory Coast is the major producer followed by Ghana, Cameroon, Nigeria and Brazil. In Asian continent, Indonesia and Malaysia are the leading producers (www.wcf.org.).

105 - 134 (30 Pages)
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5 Rootstock-Scion Interactions in Fruit Trees
Bal, J. S.

The rootstocks are known to have a profound effect on the vigour, productivity, precocity, fruit quality and tree longevity of scion varieties grafted or budded onto them. They also influence the susceptibility of scion trees to various diseases and pests. It is well recognised that optimum performance of scion varieties depends on the proper selection of rootstocks for a given set of agro-climatic conditions. To achieve success in orcharding, always select a right type of rootstock for the particular fruit or variety. In addition, it is important to raise the stock seedlings in a proper manner so that there is good germination and the stock seedlings are ready for budding/grafting in the shortest possible time. Rootstock seeds of desired fruits and varieties must be ensured from reliable sources.

135 - 176 (42 Pages)
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6 Citrus Rootstocks: Recent Trends
Sonkar, R. K. and Mhaske, B. G.

The research work carried out throughout citrus growing countries of the world including India showed utility of different rootstocks for citrus plants, which varies greatly with scion variety and agro-climatic condition. A wide range of citrus rootstocks are available, each having desirable attributes. The success of a rootstock is determined by its tolerance to prevailing conditions of soil, climate and diseases. Citrus plants are unusual in that many species and cultivars including the commercial rootstocks reproduce true to type from seed. Commercial citrus rootstocks are usually highly polyembryonic but there can be 1-40 zygotic seedlings in the seedbed.

177 - 228 (52 Pages)
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7 Nematode Pests of Horticultural Crops
Matiyar Rahaman Khan and Jain, R. K.

Crop productivity is largely affected by the several factors; however, biotic stress factor is one of the major concerns. Horticultural crop productivity is low in India as compared to other countries for many reasons including pest problems. Plant parasitic nematodes is one of the potential threat for cultivation of some important crops- root knot and reniform nematodes in vegetables; burrowing nematodes in banana, spices and plantation crops; citrus nematode in citrus; cyst nematodes in potato, foliar and lesion nematodes in flowers etc.

229 - 302 (74 Pages)
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8 Breeding for Resistance to Virus Diseases in Vegetable Crops
Dhaliwal, M.S. and Abhishek Sharma

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.

303 - 328 (26 Pages)
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9 Physiology of Flowering in Mango (Mangifera indica L.)
Vinod Singh, K.

Flowering is the most important phenological event in the phyotogerontology, as it is the key factor contributing to fruit production and profitability to the orchardists. Under favourable growth conditions the timing and intensity of flowering greatly determine the quantum of production. However, several times there are very contrasting florigenic events where despite prolific flowering, resultant fruit set remains low leading to low yields. Therefore understanding of the various external and internal factors involved in flower induction in mango is crucial for developing suitable orchard management practices to achieve regular and high yield.

329 - 348 (20 Pages)
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10 Physiology of Tuberization in Potato
Som Dutt, Brajesh Singh and Bir Pal Singh

Presently, potato (Solanum tuberosum L.) is the world’s third most important crop, after wheat and rice. Tubers of the potato plant have been used as a primary nutritional staple and a carbohydrate source in many diets and as the basis for a variety of processed products throughout the world. Owing to climate change, potato production is expected to fall in the coming decades, predictions asserting that global potato yields will decrease by 9–18% in most parts of the world. Availability of new varieties less sensitive to these environmental cues is thus crucial to overcome the negative effects of global warming. Of various developmental phases, tuberization is the most sensitive stage in potato limiting its climate associated geographical distribution and actual yield.  Hence, understanding the tuberization process becomes even more important in the face of changing global climate. The induction of tuber formation is a key developmental transition for the production of potatoes.  Understanding the regulation of tuber induction is essential to devise strategies to improve tuber yield and quality.

349 - 390 (42 Pages)
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11 Apiculture to Improve Productivity in Horticultural Crops
Raj Kumar Thakur and Surbhi Gupta

Nearly 70 percent of the cultivated crops all over the world are cross-fertilized and depend on insects like honeybees for pollination. At present, several countries are making desperate efforts to achieve self–sufficiency in food production by physical expansion of the area under cultivation, production of better quality seeds and animals, bringing more waste lands under cultivation, use of fertilizers,pesticides and irrigation. However, in the past decade or so, food production has come to a point of stagnation for some cultivated crops. Emphasis in the future therefore, should be on full use of under used resources. In order to maximize horticultural production, pollinators can be used as an important resource or input as improved variety of seed, timely irrigation, doses of fertilizers and plant protection.

391 - 450 (60 Pages)
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12 Water Management in Farming Systems
Srivastava, R. C. and Brahmanand, P. S.

Water is a critical input for crop production. Its optimum availability is important in augmenting and sustaining crop productivity. Lack of adequate supply of water can limit crop yields ranging from 10 to 90% or even be subjected to mortality if moisture go below permanent wilting point. It is also observed that the moisture shortage during some critical crop growth stages would cause severe detrimental effect. This necessitates us to provide irrigation to crops at right quantity and frequency. In other words, irrigation schedule plays key role in optimizing or maximizing crop yield. Moreover, judicious use of irrigation water has potential to enhance the agricultural productivity which in turn would lead to food security. As water resources are getting diminished day by day, the application of water saving techniques would be needed for addressing the food security objectives of the nation.

451 - 474 (24 Pages)
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13 Coconut Based Farming Systems
Maheswarappa, H. P.

Coconut is a traditional plantation crop of India and assumes the status of a high value commercial crop. In India, most of the acreage under coconut palm (90%) lies in the four southern states i.e., Kerala, Tamil Nadu, Karnataka and Andhra Pradesh. Kerala ranks first in area (53.76%) and production (45%) followed by Tamil Nadu, Karnataka and Andhra Pradesh. Coconut is mostly a crop of small farmers in India, the average size of a holding being 0.22 ha. More than 90% of the five million coconut holdings in the country are less than one ha in size. The income derived from such small holdings is not sufficient to sustain even the small families.

475 - 496 (22 Pages)
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14 Hydro-climatology for Arid Horticulture Crops: A Phonological Approach
Mohammad Valipour

Hydro-climatology is defined as the investigation of the impact of climate upon the waters of the earth. This topic includes hydrometeorology, the water processes of evaporation (surface and near surface), rainfall-runoff, and groundwater studies (Langbein, 1967; Wendland, 1998). Hydroclimatology provides a systematic foundation to assess how the climate system causes spatiotemporal changes in the hydrologic cycle with respect to global or local aspects. Variations in the relationship between the hydrologic cycle and the climate system underlie droughts, floods, and future impacts of global warming on available water resources. Both land and satellite based data and computer programming and modelling contribute to our knowledge of the spatiotemporal changes of physical processes shared by the hydrologic cycle and the climate system (Shelton, 2009).

497 - 528 (32 Pages)
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15 Nutrient Deficiency Symptoms in Cashew
Rupa, T. R.

Cashew (Anacardium occidentale L.) is the principal and one of the most important horticultural products of India. In spite of its immense popularity and commercial importance, information relating to nutrient deficiency/toxicity symptoms in cashew has not progressed much. Nutrient deficiency is common in cashew growing soils as most of the cashew plantations in India are established on degraded slopes with poor fertility, where soil and water erosion are common phenomena. Nutrient deficiency in cashew is influenced both by soil and climate.

529 - 538 (10 Pages)
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16 Management of Fruit Crops in Acid Soils of India
Ganeshamurthy, A. N., Kalaivanan, D. and Satisha, G. C.

In India, land is limited and shrinking whereas the human and animal populations are increasing. The land and man ratio has fallen rapidly in the past half century from 0.34 in 1950 to 0.14, and is projected to be 0.10 in 2025. Horticultural crops however, have shown substantial growth acceleration (Table 1).The area devoted to fruit production increased 50 per cent, while the vegetable growing area increased 20 per cent. Grape, an export crop, currently at 43,000 ha, increased by 70 per cent. The value of horticultural crops grew at an average of 7.5 percent during the 1990’s. High yield and quality in horticulture can only be ensured through rational blend of commercial fertilizers and organic nutrient sources.

539 - 558 (20 Pages)
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17 Management of Vegetable Crops in Acid Soils of India
Ganeshamurthy, A. N., Kalaivanan, D. and Satisha, G. C.

Acid soils occupy a considerable area in the country. There are about 90 million ha. of acid soils (27.4 per cent of total geographical area) spread across several states. They are found to occur in the Himalayan region, the eastern and north-eastern plains, peninsular India and the coastal plains under varying environmental conditions of landscape, geology, climate and vegetation. Thirty one million hectare area show severe soil acidity problems (pH 5.5) and 59 million ha. have pH between 5.6 and 6.5 (Sharma and Sarkar, 2005). Laterites and various latosolic soils are the large groups among acid soils. The other groups are podzolic soils, brown forest soils, peaty soils etc., Distribution of acid soils in different states of India is given in (Table 1 and Figure 1). Acid soils usually have problems associated with aluminium, iron and manganese toxicity, low nutrients status, nutrients imbalance and multiple nutrient deficiencies.

559 - 584 (26 Pages)
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18 Hightech Interventions in Horticulture Crops
Soman, P.

Technologies for cultivation of crops are changing over the years. Adherence to the principles of conservation, high input-use efficiency and higher productivity with optimum inputs and the very idea of crop production as a business venture; all these are leading to increased adoption of high technological (high-tech) crop production practises.

585 - 608 (24 Pages)
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19 Domestic Trade and Export in Coconut Industry
Remany Gopalakrishnan

There are about 6.5 million coconut farmers in the country. Coconut production, processing, marketing and other connected activities support the livelihood of over 12 million people. Coconut crop provides natural health drink, nutritious edible products and oil for edible and non edible uses, fibre of commercial value, shell and wood for fuel and industrial uses, and a variety of miscellaneous products of utility. Coconut is a symbol of national integration and prosperity. The crop is considered reverential cutting across linguistic and religious barriers promoting national integration. Contribution of coconut to the GDP of the country is around Rs. 100,000 million.

609 - 638 (30 Pages)
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