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Efeitos De Epocas De Semeadura Em Duas Cultivares De Girassol Sob Condicoes Naturais De Precipitacao E De Suplementacao Hidrica
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Book Synopsis Efeitos de epocas de semeadura em duas cultivares de girassol sob condicoes naturais de precipitacao e de suplementacao hidrica by : L. Sangoi
Download or read book Efeitos de epocas de semeadura em duas cultivares de girassol sob condicoes naturais de precipitacao e de suplementacao hidrica written by L. Sangoi and published by . This book was released on 1985 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Desenvolveu-se este trabalho com os seguintes objetivos: . avaliar as respostas de duas cultivares de girassol, quanto a rendimento de graos e oleo em varias epocas de semeadura, sob condicoes naturais de precipitacao de suplementacao hidrica, na regiao climatica da Depressao Central, RS; . detectar a variacao nos componentes do rendimento, indice de area foliar (IAF), incidencia de molestias, diametro de capitulo e estatura de plantas para as cultivares testadas, em funcao de epoca de semeadura, regime hidrico e estacao de crescimento; . determinar as variacoes dos sub-periodos da cultura do girassol, de acordo com escala proposta por SIDDIQUI et alii (1975), em relacao ao regime hidrico, epoca de semeadura e cultivar, comparando a eficiencia demonstradapelos metodos de Dias do Calendario e Unidades Termicas de Desenvolvimento na previsao de etapas fenologicas das cultivares testadas.
Book Synopsis Anuário de pesquisa by : Universidade Federal do Rio Grande do Sul. Faculdade de Agronomia
Download or read book Anuário de pesquisa written by Universidade Federal do Rio Grande do Sul. Faculdade de Agronomia and published by . This book was released on 1988 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Resposta de cultivares de girassol à densidade de plantas em duas épocas de semeadura by : M. A. Rizzardi
Download or read book Resposta de cultivares de girassol à densidade de plantas em duas épocas de semeadura written by M. A. Rizzardi and published by . This book was released on 1991 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Absorcao de nutrientes por duas cultivares de girassol (Helianthus annuus L.) em funcao da idade e adubacao, em condicoes de campo by : P. R. Machado
Download or read book Absorcao de nutrientes por duas cultivares de girassol (Helianthus annuus L.) em funcao da idade e adubacao, em condicoes de campo written by P. R. Machado and published by . This book was released on 1979 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tendo-se como objetivo conhecer a marcha de absorcao de nutrientes pelo girassol (Helianthus annuus, L.), instalou-se um experimento no Centro Experimental do Instituto Agronomico do Estado de Sao Paulo, em Campinas, para se obter os dados analiticos e se tracar as curvas de crescimento, acumulacao e exportacao de nutrientes, em duas cultivares ('Peredovick' e 'Cordobez'), adubadas e nao adubadas. O experimento foi conduzido durante o ano agricola 1974/75, em condicoes de campo, num solo areno-barrento, Latossolo Vermelho escuro - fracamente acido, de media fertilidade, exceto para o fosforo que foi baixo, mas rico em materia organica. O delineamento estatistico foi o de blocos ao acaso com 4 repeticoes, e as parcelas foram constituidas de 11 linhas com 4 metros cada, com uma populacao correspondente a 67.000 plantas por hectare. As parcelas adubadas receberam, no sulco do plantio, 45 kg de P205 e 30 kg de k20 por hectare e 30 kg de N, 30 dias apos o plantio, em cobertura. As plantas foram coletadas em 6 epocas de desenvolvimento, sendo a primeira 15 dias apos a emergencia e as demais em intervalos de 15 dias. As plantas foram amostradas de tal forma que sempre houvessem outras quatros competitivas ao redor. Apos a amostragem foram separadas em folhas, caules, capitulos e sementes e analisadas quimicamente para Nitrogenio, Fosforo, Potassio, Calcio, Magnesio, Enxofre, Ferro, Cobre, Manganes, Zinco e Boro. Os resultados obtidos mostraram que: .Houve maior acumulacao de materia seca com a adubacao e as producoes foram as seguintes, em kg/ha: 'Paredovick': Adubada = 12.804, nao adubada = 10.802; 'Cordobez': adubada = 13.140, nao adubada = 11.531; . As plantas acumulariam o maximo de materia seca apos os 90 dias (161); . As cultivares atingem o maximo da quantidade de nutrientes nas seguintes idades (dias): Fosforo = 131, Potassio = 181, Calcio = =87, Magnesio = 95, Ferro = 116, Cobre = 116, Manganes = 85, Zinco = 119 e Boro = 85. . A acumulacao de calcio, magnesio, enxofre, manganes e cobre pelas sementes foi afetada pela adubacao; . A exportacao de nutrientes obedeceu a seguinte ordem: nitrogenio, potassio, fosforo, mesmo nivel de calcio e magnesio, enxofre, ferro, zinco e manganes e, num mesmo nivel, cobre e boro; . As cultivares adubadas produziram maiores quantidades de sementes, quando comparadas com as nao adubadas.
Book Synopsis Resumos ... by : 9 REUNIAO NACIONAL DE PESQUISA DE GIRASSOL
Download or read book Resumos ... written by 9 REUNIAO NACIONAL DE PESQUISA DE GIRASSOL and published by . This book was released on 1991 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Associacao de caracteres fenotipicos com o rendimento de girassol (Helianthus annuus L.); Avaliacao de inseticidas fisiologicos e efeito residual sob condicoes laboratoriais, no controle de Chlosyne lacinia saundersii (Lepidoptera-Nymphalidae); Desempenho de inseticidas fisiologicos no controle da lagarta do girassol Chlosyne lacinia saundersii (Lep. Nymphalidae); Avaliacao da incidencia de doencas no ensaio nacional de girassol em dois locais no Parana; Suscetibilidade do girassol ao herbicida clomazona em funcao do local de absorcao; Imazametabenz (Assert), herbicida do grupo das imidazolinonas seletivo para girassol; Efeitos de metodos fisicos de controle de plantas daninhas sobre caracteristicas agronomicas do girassol; Efeitos alelopaticos na rotacao soja-girassol; Acumulo e localizacao do N na parte aerea da planta de girassol em funcao da epoca de aplicacao do nitrogenio; Distribuicao do nitrogenio na parte aerea da planta de girassol; Comparacao de diferentes niveis de borax sobre caracteristicas agronomicas em girassol; Fertilizacao em girassol; Implantacao de milho em consorcio de substituicao ao girassol; Resposta de tres genotipos de girassol a seis epocas de semeadura no planalto medio do Rio Grande do Sul; Resposta de cultivares de girassol a densidade de plantas em duas epocas de semeadura; Influencia da epoca de semeadura e densidade de plantas na composicao de acidos graxos no oleo de tres cultivares de girassol; Epocas de semeadura em girassol; Efeito da densidade de plantas e da modalidade de controle do mato em girassol; Populacao de plantas em girassol; Influencia de doses e epocas de aplicacao de dessecante na antecipacao da colheita de girassol; Antecipacao da colheita do girassol atraves da dessecacao das plantas: acumulo de materia seca e de oleo nos graos; Antecipacao da colheita do girassol atraves da dessecacao das plantas: teores de umidade dos graos e do receptaculo; Antecipacao da colheita do girassol atraves da dessecacao das plantas: germinacao dos aquenios e materia seca; Selecao entre e dentro de familias de meio-irmaos de girassol; Avaliacao de cultivares de girassol na regiao de Ponta Grossa - PR no ano agricola 90/91; Avaliacao de cultivares de girassol da "Morgan-Criadeiro y Semillero de Santa Urusla S/A", da Argentina, em Passo Fundo e Girua/RS, ano agricola 1990/91; Avaliacao de cultivares experimentais de girassol em Passo Fundo/RS, ano agricola 1990/91; Ensaio Recosol; Resultados obtidos com o ensaio pertecente a Recosol, conduzido em Cruz Alta, RS em 1990/91; Avaliacao preliminar de genotipos de girassol - Londrina, PR; Ensaio de cultivares experimentais de girassol; Avaliacao de cultivares experimentais de girassol na depressao central do RS, ano agricola 1990/91; Avaliacao de genotipos de girassol no Parana - 1990/91; Ensaio nacional de girassol; Avaliacao de cultivares do ensaio nacional de girassol, Eldorado do Sul, RS 1990/91; Comportamento de cultivares de girassol em duas regioes climaticas do Rio Grande do Sul; Avaliacao de cultivares de girassol introduzidas no Rio Grande do Sul.
Book Synopsis Absorcao de nutrientes por duas cultivares de girassol (Helianthus annuus L.) em funcao da idade da planta, em condicoes de campo by : G.J. Seredo
Download or read book Absorcao de nutrientes por duas cultivares de girassol (Helianthus annuus L.) em funcao da idade da planta, em condicoes de campo written by G.J. Seredo and published by . This book was released on 1983 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selecao massal estratificada em girassol (Helianthus annuus L.) sob duas condicoes de ambiente by : M. Telli
Download or read book Selecao massal estratificada em girassol (Helianthus annuus L.) sob duas condicoes de ambiente written by M. Telli and published by . This book was released on 1991 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uma cultivar de polinizacao aberta de girassol (Helianthus annus L.) foi submetida a selecao massal estratificada em duas epocas de semeadura sucessivas com o objetivo principal de avaliar o progresso genetico obtido com a realizacao de dois ciclos de selecao por ano agricola incluindo um ciclo em condicoes de estresse. A selecao foi realizada apenas no ambiente favoravel (primavera), onde e realizado o plantio comercial, apenas no ambiente desfavoravel (verao) ou continuamente nos dois ambientes. Os criterios de selecao foram reducao do ciclo, com maior enfase, reducao da estatura e aumento no rendimento de aquenios. No teste no ambiente favoravel, a selecao realizada apenas na primavera foi superior a realizada apenas no verao. a selecao continua permitiuganhos superiores aos obtidos com os demais tipos de selecao na reducao do cilo e estatura, mas resultou em diminuicoes mais acentuadas no rendimento por dia ou centimetro reduzido. A inclusao de um ciclo adicional de selecao no ambiente de estress e recomendada com restricoes.
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 Integrated Management and Biocontrol of Vegetable and Grain Crops Nematodes by : A. Ciancio
Download or read book Integrated Management and Biocontrol of Vegetable and Grain Crops Nematodes written by A. Ciancio and published by Springer Science & Business Media. This book was released on 2007-12-08 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second volume of the IMPD series describes aspects related to the most important phytoparasitic nematodes, considering the integration of biological control methods with other management practices and technologies, including the use of predatory nematodes and microbial rhizosphere antagonists. A focus is given on regional issues. A review on nematode management in cotton is integrated by a chapter on management of nematodes on wheat. New technologies are also revised.
Book Synopsis The Theory of the Design of Experiments by : D.R. Cox
Download or read book The Theory of the Design of Experiments written by D.R. Cox and published by CRC Press. This book was released on 2000-06-06 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why study the theory of experiment design? Although it can be useful to know about special designs for specific purposes, experience suggests that a particular design can rarely be used directly. It needs adaptation to accommodate the circumstances of the experiment. Successful designs depend upon adapting general theoretical principles to the spec
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 Tapping the Green Market by : Abraham Guillen
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.
Book Synopsis Plant Nematology, 3rd Edition by : Roland N. Perry
Download or read book Plant Nematology, 3rd Edition written by Roland N. Perry and published by CABI. This book was released on 2024-07-12 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant-parasitic nematodes are a major threat to crop production in all countries, and identification of nematodes and knowledge of their biology is of paramount importance. Providing a broad introduction to nematodes as plant parasites, this book begins by describing nematodes by genera, and then builds on this foundation to detail nematode biology and pest management, including resistance, and biological and chemical control. This 3rd edition is updated to address advances in our knowledge of plant-parasitic nematodes, particularly concerning the molecular aspects of host-parasite relationships, including the application of genomics to nematode biology. Changes in control and management strategies are also covered. The influence of climate change on plant-parasitic nematodes is addressed in a new chapter on ecology. Primarily aimed at students (MSc and PhD), this book is also invaluable for researchers and lecturers in nematology, plant pathology and parasitology, advisory and quarantine services, and crop protection scientists.
Book Synopsis Nematode Interactions by : M. Wajid Khan
Download or read book Nematode Interactions written by M. Wajid Khan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nematode interactions are important biological phenomena and of great significance in agriculture. It is a fascinating subject which is multidisciplinary by nature, and concerns any scientist involved with plant health. There have been marked advances in our knowledge of various aspects of the subject in the last two decades. This study area has been the subject of several reviews, but there was no exclusive text on the subject. This has stressed the need to document the information, developing a unifying theme which treated nematode interactions in a holistic manner. This book is about the inter action of plant-parasitic nematodes with other plant pathogens or root symbionts, the nature of their associations, their impact on the host and con sequential interactive effects on the involved organisms. Since nematodes are at the centre of the theme, the responsibility of understanding of other plant pathogens dealt with in this book is largely delegated to the reader. I have limited the book content to interactions with biotic pathogens and root symbionts only, for various reasons. The book embodies 16 chapters, and attempts to present balanced infor mation on various aspects of nematode interactions with other plant pathogens and root symbionts. Some chapters describe general aspects of the subject. Interactions of nematodes with specific groups of organisms are addressed in the remaining chapters.
Book Synopsis Flames in the Rain Forest by : Daniel C. Nepstad
Download or read book Flames in the Rain Forest written by Daniel C. Nepstad and published by . This book was released on 1999 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of Amazonian fire. Forest flammability. Amazonia is burning. Future burning. Solutions to the Amazonian fire problem.
Book Synopsis Cacao and Its Allies by : José Cuatrecasas
Download or read book Cacao and Its Allies written by José Cuatrecasas and published by . This book was released on 1964 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compendium of Peanut Diseases by : N. Kokalis-Burelle
Download or read book Compendium of Peanut Diseases written by N. Kokalis-Burelle and published by American Phytopathological Society. This book was released on 1997 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compendium of Peanut Diseases, Second Edition is a guide to the identification, diagnosis, and control of peanut diseases and disorders. Bringing together color photographs and authoritative information in a single volume, this convenient compendium is a valuable resource for peanut growers and crop consultants around the world.This compendium has become a standard guidebook for the peanut industry. The contributors are an international group that includes 50 peanut experts from the United States, India, The Peoples Republic of China, Malawi, Australia, Israel, and South Africa. They offer advice on diseases and disorders found in each of the world's major peanut-growing regions.Detailed descriptions of 55 peanut diseases are the core of the book. Covering diseases caused by fungi, bacteria, nematodes, and viruses, these descriptions present detailed information on symptoms, causal organisms, disease cycle, control, host range, transmission, detection, and epidemiology. In addition to diseases, the compendium also describes peanut disorders caused by environmental stress, insects and arthropods, and parasitic flowering plants. Other sections of the compendium cover beneficial organisms, organisms with an undetermined relationship to peanuts, disease management strategies, genetic modification, and a listing of disease and insect resistant cultivars currently available for use by growers and breeders.
