Author: K. Sankara Sastry
Publisher:
ISBN:
Category :
Languages : en
Pages : 70

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Book Description

Author: R. Frankel
Publisher: Springer Science & Business Media
ISBN: 364281977X
Category : Technology & Engineering
Languages : en
Pages : 301

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Book Description
When trying to solicit authors for this book it became apparent that the causal factors for heterosis at the physiological and biochemical level are today almost as obscure as they were 30 years ago. Though biometrical-genetical analyses point to dispersion of complementary genes - not overdominance - as the major cause of the phenomenon, plant breeders' experience still suggests a cautious, pragmatic approach to the dominance-overdominance controversy in breeding hybrid cultivars. Thus we are faced with a striking discordance between our limited comprehension of the causal factors and mechanism of heter osis on the one hand, and the extensive agricultural practice of utiliza tion of hybrid vigor on the other. Such utilization is the result of the economic value of hybrid combinations displaying superior yields and qualities as well as stability of performance, of benefits derived in breeding programs, and of the enhanced varietal protection of proprietary rights. No comprehensive and critical analysis of the phenomenon of heterosis in economic plants has been published for the last three decades since the now classical book Heterosis, edited by J . W. Gowen (Iowa State College Press, Ames, Iowa, 1952). The present book attempts to fill the gap and to assess the status of our present knowl edge of the concept, the basis, the extent, and the application of heterosis in economic plants.

Author: Shyam S. Yadav
Publisher: Springer Science & Business Media
ISBN: 140206313X
Category : Science
Languages : en
Pages : 472

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Book Description
The lentil was one of the first foods ever to have been cultivated. This book presents the most comprehensive and up-to-date review of research on lentil production, biotic and abiotic stress management, quality seed production, storage techniques and lentil growing around the world. This book will be of great value to legume breeders, scientists, nutritionists, academic researchers, graduate students, farmers, traders and consumers in the developed and the developing world.

Author: J. G. Ohler
Publisher:
ISBN:
Category : Social Science
Languages : en
Pages : 496

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Book Description
Modern Coconut Management presents new information on the coconut palm and its adaptation to the environment; surveys the wide range of different cultural practices and coconut-based farming systems; and describes the industrial use of various products of the tree such as coconut shell meal, activated carbon, coconut oil, coconut sugar etc. Ample attention has been given to new theories and techniques of selection and breeding, new information on diseases and their causal agents and the most important insect pests of the palm.

Author: Jiban Shrestha
Publisher: Nipa
ISBN: 9788119215621
Category :
Languages : en
Pages : 0

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Book Description
This book uates its readers about the methods and management of livestock during disasters. The book has covered all mad made and natural disasters and their effect on livestock and how they can be managed better for longer survival and help to the humans. Topics on how animals can sense a disaster in advance and what are the common indications given by them and how humans can benefit from it. Book elucidates the management of feeding, feed resources, production and health so as to make the livestock production economical. It is hoped that the compilation will prove useful for the researchers, planners and policy makers to understand the causes for the loss of productivity and health of livestock in drier regions and help in devising management plans towards sustenance and improvement of production.

Author: Robert Breckenridge Handy
Publisher:
ISBN:
Category : Peanuts
Languages : en
Pages : 32

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Author: Tabassum Abbasi
Publisher: Elsevier
ISBN: 0444543058
Category : Technology & Engineering
Languages : en
Pages : 375

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Book Description
This book covers water quality indices (WQI) in depth – it describes what purpose they serve, how they are generated, what are their strengths and weaknesses, and how to make the best use of them. It is a concise and unique guide to WQIs for chemists, chemical/environmental engineers and government officials. Whereas it is easy to express the quantity of water, it is very difficult to express its quality because a large number of variables determine the water quality. WQIs seek to resolve the difficulty by translating a set of a large number of variables to a one-digit or a two-digit numeral. They are essential in communicating the status of different water resources in terms of water quality and the impact of various factors on it to policy makers, service personnel, and the lay public. Further they are exceedingly useful in the monitoring and management of water quality. With the importance of water and water quality increasing exponentially, the importance of this topic is also set to increase enormously because only with the use of indices is it possible to assess, express, communicate, and monitor the overall quality of any water source. - Provides a concise guide to WQIs: their purpose and generation - Compares existing methods and WQIs and outlines strengths and weaknesses - Makes recommendations on how the indices should be used and under what circumstances they apply

Author: Rajinder Peshin
Publisher: Springer
ISBN: 9783319997674
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
This book is an outcome of the keynote/lead papers presented by the experts from different disciplines in the Indian Ecological Society International Conference 2016 on “Natural Resource Management: Ecological Perspectives”, organized at the Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, India. The book captures the essence of natural resource management from the intra and interdisciplinary perspectives of agricultural sciences (entomology, plant pathology, plant breeding and genetics, agronomy and soil sciences), social sciences (resource economics, agricultural extension education), medical sciences, and environmental sciences to stimulate discussion on the ecological perspectives of natural resource management. Wide-ranging topics on land and water resources, biodiversity, integrated farming system, role of microbes in agriculture, climate change and its impact on human health and crop pests, exploiting chemical ecology for pest management, human disease-causing pesticides, beneficial insects like lac insects, integrated pest management, resistance management in insect pests and Bt cotton , and diffusion and adoption of ecologically sustainable technologies at individual and organizational level are covered in the book.. The book will serve the professionals, researchers, academia, government, industry and students.

Author: Paul D. Sturkie
Publisher: Springer Science & Business Media
ISBN: 1461248620
Category : Science
Languages : en
Pages : 528

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Book Description
Since the publication of earlier editions, there has been The new edition has a number of new contributors, a considerable increase in research activity ina number who have written on the nervous system, sense organs, of areas, with each succeeding edition including new muscle, endocrines, reproduction, digestion and immu chapters and an expansion of knowledge in older chap nophysiology. Contributors from previous editions ters. have expanded their offerings considerably. The fourth edition contains two new chapters, on The authors are indebted to various investigators, muscle and immunophysiology, the latter an area journals and books for the many illustrations used. Indi where research on Aves has contributed significantly vidual acknowledgement is made in the legends and to our general knowledge of the subject. references. Preface to the 'Third Edition Since the publication of the first and second editions, pathways of birds and mammals. New contributors in there has been a considerable increase of research activ clude M. R. Fedde and T. B. Bolton, who have com ity in avian physiology in a number of areas, including pletely revised and expanded the chapters on respira endocrinology and reproduction, heart and circulation, tion and the nervous system, respectively, and J. G. respiration, temperature regulation, and to a lesser ex Rogers, Jr. , W. J. Mueller, H. Opel, and D. e. Meyer, who have made contributions to Chapters 2,16, 17, tent in some other areas. There appeared in 1972-1974 a four volume treatise and 19, respectively.

Author:
Publisher:
ISBN: 9789290662846
Category : Bacterial diseases of plants
Languages : en
Pages : 23

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Book Description
Bacterial wilt (Pseudomonas solanacearum) is a major constraint to groundnut production in several Asian and African countries. Although the disease is present in many contries, is particularly important in China, Indonesia, Vietnam, Malaysia and Uganda.