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Author : F. C. A. Souza
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (78 download)
Download or read book A qualidade da semente de soja em relacao a sua densidade written by F. C. A. Souza and published by . This book was released on 1975 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : PEDRO MOREIRA DA SILVA FILHO SILVA FILHO
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (78 download)
Download or read book Desempenho de plantas e sementes de soja classificadas por tamanho e densidade written by PEDRO MOREIRA DA SILVA FILHO SILVA FILHO and published by . This book was released on 1994 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: O presente trabalho foi realizado com o propósito de avaliar os efeitos da classificação por tamanho e densidade, na qualidade de sementes de soja e no comportamento das plantas no campo. Dois lotes de sementes da cultivar EMBRAPA - 1., apos o beneficiamento na maquina de ar e peneiras foram classificados em quatro tamanhos (grande, médio, pequeno e não classificado) no classificador de peneiras cilíndricas e a seguir, em três densidades (alta, intermediaria e não classificada) na mesa de gravidade. As avaliações de laboratório realizadas foram: germinação, envelhecimento precoce, danos mecânicos e peso de mil sementes e o comportamento das plantas no campo foi avaliado através da emergência a campo, população final de plantas, altura das plantas na floração e na maturação, numero de vagens e sementes por planta, peso de sementes por planta e rendimento. A analise dos dados e a interpretação dos resultados permitem concluir que: a) A classificação de sementes de soja, em classificador de peneiras cilíndricas de furos redondos, uniformiza o tamanho das sementes no lote e melhora suas características físicas; b) Diferentes classes de peso de sementes de soja são obtidas através da classificação pela largura em peneiras cilíndricas de furos redondos; c) Sementes de soja com diferentes densidades resultantes de beneficiamento na mesa de gravidade apresentam diferentes níveis de qualidade física e fisiológica; d) A classificação de sementes de soja por tamanho e densidade afeta os fatores de produção, mas não interfere no rendimento.
Author : L. A. S. Silva
Publisher :
ISBN 13 :
Total Pages : 340 pages
Book Rating : 4.:/5 (79 download)
Download or read book Herança e relações genéticas entre densidade da semente, teores de proteína e óleo e produtividade em soja written by L. A. S. Silva and published by . This book was released on 2008 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: O elevado valor sócioeconômico da soja é atribuído, em grande parte, à combinação muito favorável de altos teores de proteína e óleo, juntamente com níveis adequados de produtividade de grãos. Porém, existe uma alta correlação negativa entre os teores de proteína e óleo, fato que dificulta o melhoramento simultâneo destes caracteres. Além disso, também existe tendência de correlação negativa e moderada entre o teor de proteína e a produtividade de grãos. Existem evidências de que a seleção para a densidade da semente pode promover ganhos indiretos simultâneos no teor de proteína e na produtividade de grãos. Assim, os principais objetivos deste trabalho foram: a) estimar parâmetros genéticos relacionados com a herança da densidade da semente; b) avaliar a eficiência da seleção para densidade da semente no melhoramento do teor de proteína e da produtividade de grãos. Para o estudo de herança foram utilizados quatro cruzamentos diferentes: USP98-06.011. x Abura, M-SOY 8001 x Abura, USP98-06.027.03 x Biloxi e USP98-06.009.01 x PI 239.235, sendo que os parentais e as plantas F 2 foram avaliados durante a safra 2006/07. Já para avaliar as respostas correlacionadas à seleção para densidade da semente foram delineados três experimentos distintos: Experimento Inicial, no qual foram avaliadas 520 progênies F 7:6, durante a safra 2005/06; Experimento Densidade, em que foram avaliadas 100 progênies F8:6 selecionadas para densidade da semente; Experimento Alimentos, em que foram avaliadas 100 progênies F8:6 selecionadas para soja tipo alimento. Os dois últimos experimentos foram realizados durante a safra 2006/07, e as progênies avaliadas neles foram selecionadas dentre as 520 progênies F7:6 do Experimento Inicial. Os resultados permitiram chegar as seguintes conclusões: a) existe ampla variabilidade genética para densidade da semente; b) a herdabilidade no sentido amplo para este caráter é baixa quando estimada na geração F2, mas em geração avançada de endogamia atinge valor alto; c) a herança genética é aditiva e, assim, o caráter não manifesta hereose; d) existe correlação moderada e positiva da densidade da semente com a produtividade de grãos e o teor de proteína e, por outro lado, a correlação entre a densidade da semente e o teor de óleo é negativa; e) é possível identificar genótipos tipo alimento com médias altas de produtividade de grãos e teor de proteína; f) a seleção para aumentar a densidade da semente é eficiente no melhoramento simultâneo do teor de proteína e da produtividade de grãos, permitindo a obtenção de genótipos com alta produtividade de proteína; g) a seleção para reduzir a densidade da semente não promove aumentos significativos do teor de óleo.
Author : Lindbergue Araújo Crisóstomo
Publisher :
ISBN 13 :
Total Pages : 240 pages
Book Rating : 4.:/5 (891 download)
Download or read book Fertilizing for High Yield and Quality written by Lindbergue Araújo Crisóstomo and published by . This book was released on 2007 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acerola; Banana; Cashew: dwarf variety; Citrus; Coconut: green dwarf variety; Guava; Mango; Papaya; Passion-fruit; Pineapple; Soursop.
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Publisher :
ISBN 13 :
Total Pages : 642 pages
Book Rating : 4.3/5 (243 download)
Download or read book Brazilian journal of agricultural research written by and published by . This book was released on 1988 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 762 pages
Book Rating : 4.:/5 (38 download)
Download or read book Anais, 10a Conferência Internacional de Biometria, Guarujá, SP, Brasil, 6/10 agosto, 1979 written by and published by . This book was released on 1982 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 1172 pages
Book Rating : 4.E/5 ( download)
Download or read book Fitopatologia brasileira written by and published by . This book was released on 2003 with total page 1172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel M. Brooks
Publisher : IUCN
ISBN 13 : 9782831704227
Total Pages : 176 pages
Book Rating : 4.7/5 (42 download)
Download or read book Tapirs written by Daniel M. Brooks and published by IUCN. This book was released on 1997 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Descended from a long and ancient lineage, tapirs are important tropical forest seed dispersers. However, today, all species of tapirs are threatened to various degrees by habitat destruction and hunting. This action plan was written with wildlife biologists, ecologists, administrators, educators and local conservation officials in mind and is aimed at those countries with tapir populations. It provides a brief natural history of each species and its objective is to aid in their conservation by catalyzing conservation action. In addition, it is hoped that the contents of the plan will stimulate further research into this fascinating group of animals.
Author : Alexander Wood
Publisher : Routledge
ISBN 13 : 1134199384
Total Pages : 416 pages
Book Rating : 4.1/5 (341 download)
Download or read book The Root Causes of Biodiversity Loss written by Alexander Wood and published by Routledge. This book was released on 2013-11-05 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world is losing species and biodiversity at an unprecedented rate. The causes go deep and the losses are driven by a complex array of social, economic, political and biological factors at different levels. Immediate causes such as over-harvesting, pollution and habitat change have been well studied, but the socioeconomic factors driving people to degrade their environment are less well understood. This book examines the underlying causes. It provides analyses of a range of case studies from Brazil, Cameroon, China, Danube River Basin, India, Mexico, Pakistan, Philippines, Tanzania and Vietnam, and integrates them into a new and interdisciplinary framework for understanding what is happening. From these results, the editors are able to derive policy conclusions and recommendations for operational and institutional approaches to address the root causes and reverse the current trends. It makes a contribution to the understanding of all those - from ecologists and conservationists to economists and policy makers - working on one of the major challenges we face.
Author : Reinette Biggs
Publisher : Cambridge University Press
ISBN 13 : 110708265X
Total Pages : 317 pages
Book Rating : 4.1/5 (7 download)
Download or read book Principles for Building Resilience written by Reinette Biggs and published by Cambridge University Press. This book was released on 2015-04-02 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the very latest research, this book provides an in-depth review of the role of resilience in the management of social-ecological systems and the ecosystem services they provide. Leaders in the field outline seven principles for building resilience in social-ecological systems, examining how these can be applied to advance sustainability.
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Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (6 download)
Download or read book Australian Journal of Agricultural Research written by and published by . This book was released on 2000 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Abraham Guillen
Publisher : Routledge
ISBN 13 : 1136555242
Total Pages : 471 pages
Book Rating : 4.1/5 (365 download)
Download or read book Tapping the Green Market written by Abraham Guillen and published by Routledge. This book was released on 2012-08-21 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a rapidly growing interest in, and demand for, non-timber forest products (NTFPs). They provide critical resources across the globe fulfilling nutritional, medicinal, financial and cultural needs. However, they have been largely overlooked in mainstream conservation and forestry politics. This volume explains the use and importance of certification and eco-labelling for guaranteeing best management practices of non-timber forest products in the field. Using extensive case studies and global profiles of non-timber forest products, this work not only seeks to further our comprehension of certification processes but also broaden understanding of non-timber forest product management, harvesting and marketing. It should be useful to forest managers, policy-makers and conservation organizations as well as for academics in these areas.
Author :
Publisher :
ISBN 13 :
Total Pages : 808 pages
Book Rating : 4.A/5 ( download)
Download or read book Revista Ceres written by and published by . This book was released on 2001 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mark Davies
Publisher : Routledge
ISBN 13 : 113411091X
Total Pages : 950 pages
Book Rating : 4.1/5 (341 download)
Download or read book A Frequency Dictionary of Portuguese written by Mark Davies and published by Routledge. This book was released on 2007-11-29 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt: An invaluable tool for learners of Portuguese, this Frequency Dictionary provides a list of the 5000 most commonly used words in the language. Based on a twenty-million-word collection of Portuguese (taken from both Portuguese and Brazilian sources), which includes both written and spoken material, this dictionary provides detailed information for each of the 5000 entries, including the English equivalent, a sample sentence, and an indication of register and dialect variation. Users can access the top 5000 words either through the main frequency listing or through an alphabetical index. Throughout the frequency listing there are also thrity thematically-organized ‘boxed’ lists of the top words from a variety of key topics such as sports, weather, clothing and relations. An engaging and highly useful resource, A Frequency Dictionary of Portuguese will enable students of all levels to get the most out of their study of Portuguese vocabulary. Former CD content is now available to access at www.routledge.com/9780415419970 as support material. Designed for use by corpus and computational linguists it provides the full text in a format that researchers can process and turn into suitable lists for their own research work.
Author : Steven R. Radosevich
Publisher : John Wiley & Sons
ISBN 13 : 0470168935
Total Pages : 474 pages
Book Rating : 4.4/5 (71 download)
Download or read book Ecology of Weeds and Invasive Plants written by Steven R. Radosevich and published by John Wiley & Sons. This book was released on 2007-08-31 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: The classic reference on weeds and invasive plants has been revised and updated. The Third Edition of this authoritative reference provides an in-depth understanding of how weeds and invasive plants develop and interact in the environment so you can manage and control them more effectively. The guide includes an introduction to weeds and invasive plants in various environments and an overview of their ecology and evolution. With extensive examples, this book: Focuses on the biological features of weeds and invasive plants, especially as they exist in agriculture, forests, rangelands, and natural ecosystems. Includes coverage of exotic invasive plants. Discusses a variety of methods and tools for managing weeds and invasive plants, including physical, cultural, biological, and chemical approaches. Examines systems approaches for management, including modern Integrated Pest Management. Addresses future challenges for scientists, farmers, and land managers. This is the definitive, hands-on reference if you're a land manager or professional in plant sciences, agronomy, weed science, and horticulture. The book is also an excellent textbook for senior undergraduate or graduate students studying agriculture, ecology, natural resources management, environmental management, or related fields.
Author : André Koch Torres Assis
Publisher :
ISBN 13 : 9781987980110
Total Pages : 268 pages
Book Rating : 4.9/5 (81 download)
Download or read book The Experimental and Historical Foundations of Electricity written by André Koch Torres Assis and published by . This book was released on 2010 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Raphael A. Viscarra Rossel
Publisher : Springer Science & Business Media
ISBN 13 : 9048188598
Total Pages : 440 pages
Book Rating : 4.0/5 (481 download)
Download or read book Proximal Soil Sensing written by Raphael A. Viscarra Rossel and published by Springer Science & Business Media. This book was released on 2010-07-25 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on developments in Proximal Soil Sensing (PSS) and high resolution digital soil mapping. PSS has become a multidisciplinary area of study that aims to develop field-based techniques for collecting information on the soil from close by, or within, the soil. Amongst others, PSS involves the use of optical, geophysical, electrochemical, mathematical and statistical methods. This volume, suitable for undergraduate course material and postgraduate research, brings together ideas and examples from those developing and using proximal sensors and high resolution digital soil maps for applications such as precision agriculture, soil contamination, archaeology, peri-urban design and high land-value applications, where there is a particular need for high spatial resolution information. The book in particular covers soil sensor sampling, proximal soil sensor development and use, sensor calibrations, prediction methods for large data sets, applications of proximal soil sensing, and high-resolution digital soil mapping. Key themes: soil sensor sampling – soil sensor calibrations – spatial prediction methods – reflectance spectroscopy – electromagnetic induction and electrical resistivity – radar and gamma radiometrics – multi-sensor platforms – high resolution digital soil mapping - applications Raphael A. Viscarra Rossel is a scientist at the Commonwealth Scientific and Industrial Research Organisation (CSIRO) of Australia. Alex McBratney is Pro-Dean and Professor of Soil Science in the Faculty of Agriculture Food & Natural Resources at the University of Sydney in Australia. Budiman Minasny is a Senior Research Fellow in the Faculty of Agriculture Food & Natural Resources at the University of Sydney in Australia.
