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Melhoramento Genetico Da Mandioca Ii Estimativa E Uso Da Variacao Genetica Fenotipica E Ambiental
Download Melhoramento Genetico Da Mandioca Ii Estimativa E Uso Da Variacao Genetica Fenotipica E Ambiental full books in PDF, epub, and Kindle. Read online Melhoramento Genetico Da Mandioca Ii Estimativa E Uso Da Variacao Genetica Fenotipica E Ambiental ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Melhoramento genético da mandioca II. Estimativa e uso da variação genética, fenotípica e ambiental by : A. Bueno
Download or read book Melhoramento genético da mandioca II. Estimativa e uso da variação genética, fenotípica e ambiental written by A. Bueno and published by . This book was released on 1986 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: O melhoramento genético da mandioca (Manihot esculenta Crantz) pode ser dividido em três fases principais: a coleção ou criação de uma fontede germoplasma variável, a seleção dos genótipos superiores e a subsequente utilização destas seleções como cultivares melhoradas. As estimativas das variações genética, fenotípica e ambiental e da interação genótipo x ambiente são importantes nos três estágios. Na fase inicial, quando o germoplasma disponível e testado em experimentos com repetição no tempo e no espaço, a análise dos dados permite a estimação da variabilidade genética, fenotípica e ambiental. A existência de variabilidade genética na produção total nao indica a amplitude de variação de cada genotipo específico. Componentes da variação obtidos à partir de dados inadequados podem levar à estimativas errôneas da variação genética. Quando a estimativa é baseada em dados de apenas um local e um ano, a variância genética contém, também, a variância das interações genótipo x local, genótipo x ano e genótipo x local x ano . Caso estas interações sejam importantes, predições assim obtidas não serão confirmadas em outros locais ou anos futuros. Em geral, quanto mais diversa for a população de ambiente, menor será a estimativa da variância genética, pois uma maior parte da interação genótipo x ambiente será removida daquela variância.
Book Synopsis The Physiology of Vegetable Crops, 2nd Edition by : Hans Christian Wien
Download or read book The Physiology of Vegetable Crops, 2nd Edition written by Hans Christian Wien and published by CABI. This book was released on 2020-05-01 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completely updated and revised, this bestselling book continues to explain the growth and developmental processes involved in the formation of vegetables. Since the publication of the successful first edition significant discoveries, particularly in the area of molecular biology, have deepened and broadened our knowledge and understanding of these processes. This new edition brings the topic up-to-date and is presented over two sections: the first provides general knowledge on germination, transplanting, flowering, the effects of stress and modelling, whilst the second section details the physiology of specific crops or crop groups.
Book Synopsis Vegetation of the Earth and Ecological Systems of the Geo-biosphere by : Heinrich Walter
Download or read book Vegetation of the Earth and Ecological Systems of the Geo-biosphere written by Heinrich Walter and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phytomass and Primary Production of the Various Vegetational Zones and of the Entire Biosphere The biosphere is that thin layer at the earth's surface in which living organisms exist and biological cycling takes place. It includes the upper horizons of the soil in which plants root, the atmosphere near the ground, (insofar as organisms penetrate this space), and all the surface waters. More than 99% of the earth's biomass is phytomass, to which we shall limit our discussion. Amounts of phytomass are distinctly related to vegeta tional zones. Because accurate determination of phytomass and primary production is difficult, only gross estimates have been available until recently. However, in 1970, Bazilevich et al. published (in Russian) more accurate calculations, based on the rapidly accumulating literature, for the various thermal zones and bioclimatic regions of the earth. These authors calculated mean phyto mass and mean annual primary production for the various regions as dry mass (in tons) per hectare. On the basis of measurements of the areas covered by the individual regions, excluding rivers, lakes, glaciers, and permanent snow, total phytomass and total annual primary production for the various regions were obtained (see table). The sum of these figures is the phytomass and annual production of the land surface of the earth. In addition, the table gives corresponding data for the waters of the earth. The values involved are potential i. e. , they are based on natural vegetation uninfluenced by man.
Book Synopsis Climate Dynamics of the Tropics by : S. Hastenrath
Download or read book Climate Dynamics of the Tropics written by S. Hastenrath and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of my book "Climate and Circulation of the Tropics" was reasonably up to date to the middle of 1985. In a second printing in 1988 it was possible to complete a few literature references and to correct some misprints. However, vigorous research has taken place over the past five years in various areas of tropical climate dynamics, especially in the atmosphere-ocean mechanisms of climate anomalies, climate prediction, ocean circulation, and paleoclimates. Promising progress has also been made in the application of general circulation modelling to tropical climate problems. In the present second edition, named "Climate Dynamics of the Tropics", I have attempted to incorporate much of the recent work to late 1990. Chapters 8 and 9 have been essentially re-written, and major additions have been made to Chapters 4 and 12 in particular. I would like to acknowledge the continued support by the U.S. National Science Foundation over the past five years. B. Parthasarathy, Poona, and H. Lessmann, San Salvador, sent me updates of data series not easily accessible. I have benefitted from discussions with numerous colleagues in the United States and overseas. In the preparation of this second edition, Marilyn Wolff patiently transferred my illegible hand-written drafts onto word processor. Dierk Polzin and Dan Skemp assisted me with the creation of the page masters and the subject index and Christopher Collimore with the author index.
Book Synopsis Animism in Rainforest and Tundra by : Marc Brightman
Download or read book Animism in Rainforest and Tundra written by Marc Brightman and published by Berghahn Books. This book was released on 2012-08-01 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amazonia and Siberia, classic regions of shamanism, have long challenged ‘western’ understandings of man’s place in the world. By exploring the social relations between humans and non-human entities credited with human-like personhood (not only animals and plants, but also ‘things’ such as artifacts, trade items, or mineral resources) from a comparative perspective, this volume offers valuable insights into the constitutions of humanity and personhood characteristic of the two areas. The contributors conducted their ethnographic fieldwork among peoples undergoing transformative processes of their lived environments, such as the depletion of natural resources and migration to urban centers. They describe here fundamental relational modes that are being tested in the face of change, presenting groundbreaking research on personhood and agency in shamanic societies and contributing to our global understanding of social and cultural change and continuity.
Book Synopsis The Ecology of Power by : Michael Heckenberger
Download or read book The Ecology of Power written by Michael Heckenberger and published by Psychology Press. This book was released on 2005 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2005. Routledge is an imprint of Taylor & Francis, an informa company.
Book Synopsis Fire and Plants by : William J. Bond
Download or read book Fire and Plants written by William J. Bond and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large regions of the world are regularly burnt either deliberately or naturally. However, despite the widespread occurrence of such fire-prone ecosystems, and considerable body of research on plant population biology in relation to fire, until now there have only been limited attempts at a coherent conceptual synthesis of the field for use by students or researchers.
Author :American Society of Civil Engineers. Technical Committee on Irrigation Water Requirements Publisher : ISBN 13 : Total Pages :236 pages Book Rating :4.3/5 (91 download)
Book Synopsis Consumptive Use of Water and Irrigation Water Requirements by : American Society of Civil Engineers. Technical Committee on Irrigation Water Requirements
Download or read book Consumptive Use of Water and Irrigation Water Requirements written by American Society of Civil Engineers. Technical Committee on Irrigation Water Requirements and published by . This book was released on 1973 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Holistic Anthropology by : David J. Parkin
Download or read book Holistic Anthropology written by David J. Parkin and published by Berghahn Books. This book was released on 2007 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given the broad reach of anthropology as the science of humankind, there are times when the subject fragments into specialisms and times when there is rapprochement. Rather than just seeing them as reactions to each other, it is perhaps better to say that both tendencies co-exist and that it is very much a matter of perspective as to which is dominant at any moment. The perspective adopted by the contributors to this volume is that some anthropologists have, over the last decade or so, been paying considerable attention to developments in the study of social and biological evolution and of material culture, and that this has brought social, material cultural and biological anthropologists closer to each other and closer to allied disciplines such as archaeology and psychology. A more eclectic anthropology once characteristic of an earlier age is thus re-emerging. The new holism does not result from the merging of sharply distinguished disciplines but from among anthropologists themselves who see social organization as fundamentally a problem of human ecology, and, from that, of material and mental creativity, human biology, and the co-evolution of society and culture. It is part of a wider interest beyond anthropology in the origins and rationale of human activities, claims and beliefs, and draws on inferential or speculative reasoning as well as 'hard' evidence. The book argues that, while usefully borrowing from other subjects, all such reasoning must be grounded in prolonged, intensive and linguistically-informed fieldwork and comparison.
Book Synopsis The Cerrados of Brazil by : Paulo S.
Download or read book The Cerrados of Brazil written by Paulo S. and published by Columbia University Press. This book was released on 2013-02-05 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The massive grasslands of Brazil -- known as the cerrados -- which cover roughly a quarter of its land surface and are among the most threatened regions in South America, have received little media attention. This book brings together leading researchers on the area to produce the first detailed account in English of the natural history and ecology of the cerrado/savanna ecosystem. Given their extent and threatened status, the richness of their flora and fauna, and the lack of familiarity with their unique ecology at the international level, the cerrados are badly in need of this important and timely work.
Download or read book Vegetation history written by B. Huntley and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt: The analysis of vegetation history is one of the prime objectives for vegetation scientists. In order to understand the recent composition of local floras and plant communities a second knowledge of species com position during recent millenia is essential. With the present concern over climate changes, due to human activities, an understanding of past vegeta tion distribution becomes even more important, since the correlation between climate and vegetation can often be used to predict possible impacts to crops and forests. I was very fortunate to receive the help of Drs. Webb and Huntley to compile this volume on vegetation history. They have collated an impres sive set of papers which together give an account of the vegetation history of most of the continents during the late-Tertiary and Quaternery periods. There are, however, gaps in the coverage achieved, most notably Africa, and Asia apart from Japan. The information in this book will nonetheless certainly be used widely by vegetation scientists for the regions covered in the book and much of it has relevance to the areas not explicitly described. The authors of the individual chapters have done their best to cover recent topics of interest as well as established facts. It is intended that a separate volume will be produced in the near future covering the vegetation history of Africa and Asia. I thank the editors of It fits well into the this volume for their commendable achievement.
Book Synopsis The Various Contrivances by which Orchids are Fertilised by Insects by : Charles Darwin
Download or read book The Various Contrivances by which Orchids are Fertilised by Insects written by Charles Darwin and published by . This book was released on 1886 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Banisteriopsis, Diplopterys (Malpighiaceae) by : Bronwen Gates
Download or read book Banisteriopsis, Diplopterys (Malpighiaceae) written by Bronwen Gates and published by New York Botanical Garden Press. This book was released on 1982 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gates provides circumscription, distribution, & subdivision of the genera, morphology, chromosome numbers, & the taxonomy of the two genera.
Book Synopsis Pollination and Floral Ecology by : Pat Willmer
Download or read book Pollination and Floral Ecology written by Pat Willmer and published by Princeton University Press. This book was released on 2011-07-25 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollination and Floral Ecology is a very comprehensive reference work to all aspects of pollination biology.
Book Synopsis Ecology and Evolution of Flowers by : Lawrence D. Harder
Download or read book Ecology and Evolution of Flowers written by Lawrence D. Harder and published by Oxford University Press, USA. This book was released on 2006-11-30 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Floral biology, floral function, sexual systems, diversification.
Book Synopsis Abiotic Stress Tolerance in Plants by : Ashwani K. Rai
Download or read book Abiotic Stress Tolerance in Plants written by Ashwani K. Rai and published by Springer Science & Business Media. This book was released on 2006-06-15 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art guide to recent developments in the understanding of plant response to abiotic stresses. Each chapter reflects how new techniques have helped physiologists, biochemists and molecular biologists to understand the basic problems of abiotic stress in plant species. The book supplies extensive bibliographies at the end of each chapter, as well as tables and figures that illustrate the research findings.
Book Synopsis Biology of Floral Scent by : Natalia Dudareva
Download or read book Biology of Floral Scent written by Natalia Dudareva and published by CRC Press. This book was released on 2006-03-27 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: As with nearly all living creatures, humans have always been attracted and intrigued by floral scents. Yet, while we have been manufacturing perfumes for at least 5000 years to serve a myriad of religious, sexual, and medicinal purposes, until very recently, the limitation of our olfactory faculty has greatly hindered our capacity to clearly and ob
