Research on Farmers' Objectives for Tree Breeding PDF Download
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Author: J. B. Raintree
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 148
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Author: J. B. Raintree
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 148
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Book Description
Author: G. Namkoong
Publisher: Springer Science & Business Media
ISBN: 1461238927
Category : Technology & Engineering
Languages : en
Pages : 186
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Book Description
It has become apparent, during discussions with students and colleagues in forest genetics, that a universal concern is the achievement of diverse goals of forestry from fiber production in industrial as well as farm forests to conserving forest ecosystems. Although we generally have several breeding methods available and several species to breed, we seek to satisfy multiple-use goals on diverse sites by management techniques that at best can only partially control edaphic environmental variation. The dominant approach, which was agriculturally motivated, has involved inten sive effort with complicated breeding plans on single species for uniform adaptability and single-product plantations. However, this is obviously neither the only, nor necessarily the best, solution for the genetic management of tree species, and thus our intent in this volume is to develop ways to achieve multiple objectives in tree breeding. We include an array of breeding plans from simple iterated designs to sets of multiple populations capable of using gene actions for different traits in different environments for uncertain futures. The presentation is organized around the development of breeding from single-to multiple-option plans, from single to multiple traits, from single to mUltiple environ ments, and from single to multiple populations. However, it is not a complete "How To" book, and includes neither exercises nor instructions on data handling. It also does not include discussion of all modes of reproduction and inheritance encountered in plants.
Author:
Publisher: Bib. Orton IICA / CATIE
ISBN:
Category :
Languages : en
Pages : 44
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Author: Lert Chuntanaparb
Publisher:
ISBN:
Category : Forest genetics
Languages : en
Pages : 164
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Author:
Publisher:
ISBN:
Category : Economic development
Languages : en
Pages : 512
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 592
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Book Description
Set includes revised editions of some issues.
Author: Malcolm F. Cairns
Publisher: Routledge
ISBN: 1317750195
Category : Nature
Languages : en
Pages : 1057
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Book Description
Shifting cultivation is one of the oldest forms of subsistence agriculture and is still practised by millions of poor people in the tropics. Typically it involves clearing land (often forest) for the growing of crops for a few years, and then moving on to new sites, leaving the earlier ground fallow to regain its soil fertility. This book brings together the best of science and farmer experimentation, vividly illustrating the enormous diversity of shifting cultivation systems as well as the power of human ingenuity. Some critics have tended to disparage shifting cultivation (sometimes called 'swidden cultivation' or 'slash-and-burn agriculture') as unsustainable due to its supposed role in deforestation and land degradation. However, the book shows that such indigenous practices, as they have evolved over time, can be highly adaptive to land and ecology. In contrast, 'scientific' agricultural solutions imposed from outside can be far more damaging to the environment and local communities. The book focuses on successful agricultural strategies of upland farmers, particularly in south and south-east Asia, and presents over 50 contributions by scholars from around the world and from various disciplines, including agricultural economics, ecology and anthropology. It is a sequel to the much praised "Voices from the Forest: Integrating Indigenous Knowledge into Sustainable Upland Farming" (RFF Press, 2007), but all chapters are completely new and there is a greater emphasis on the contemporary challenges of climate change and biodiversity conservation.
Author: Richard Edwards
Publisher: IICA
ISBN:
Category :
Languages : en
Pages : 230
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Book Description
Author:
Publisher: Bib. Orton IICA / CATIE
ISBN:
Category :
Languages : en
Pages : 370
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Book Description
Author: Richard Edwards
Publisher: IICA Biblioteca Venezuela
ISBN:
Category :
Languages : en
Pages : 230
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Book Description
