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Author : L. F. Stone
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (79 download)
Download or read book Arroz irrigado por aspersão written by L. F. Stone and published by . This book was released on 2004 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : F. M. P. Viana
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (78 download)
Download or read book Avaliacao de doencas em arroz irrigado por aspersao em Parnaiba written by F. M. P. Viana and published by . This book was released on 1992 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Avaliacao de doencas em arroz irrigado por aspersao em Parnaiba.
Author : Jin Quan Li
Publisher : BoD – Books on Demand
ISBN 13 : 9535130099
Total Pages : 326 pages
Book Rating : 4.5/5 (351 download)
Download or read book Advances in International Rice Research written by Jin Quan Li and published by BoD – Books on Demand. This book was released on 2017-03-15 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rice provides staple food for more than 50% of the world's population and is an important crop in the world. With the new technologies such as high-throughput genome sequencing and integrated "-omis" methods applied in rice researches, great advancements have been made. This book was aimed to show a glance of new advancements in the international rice researches. The first section of the book introduced rice cultivation and production. As core sections of the book, the second and third sections introduced physiological and genetic mechanisms on grain quality and biotic and abiotic stress resistance as well as breeding. In the last section, we introduced new technologies such as chromatin immunoprecipitation, integrated "-omis" methods, and bistatic interferometry technology in rice research.
Author : A. C. C. Alvarez
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (78 download)
Download or read book Produção do arroz em função da adubação com silício e nitrogênio no sistema de sequeiro e irrigado por aspersão written by A. C. C. Alvarez and published by . This book was released on 2004 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: O silício apresenta grande potencial na agricultura, revelando-se promissor e eficaz do ponto de vista técnico, pelo fato de aumentar a resistência da parede celular, e dessa forma, diminuir a perda de água por transpiração, aumentar a tolerância a pragas e doenças e resistência ao acamamento, produzindo plantas mais eretas, resultando na melhoria da eficiência fotossintética, o que pode refletir em aumento da produtividade. Nesse contexto, o objetivo do trabalho foi avaliar os efeitos promovidos pela aplicação de silício e diferentes doses de nitrogênio em cobertura (0, 30, 60, 90 kg de N ha -1) nos componentes da produção e produtividade da cultura do arroz, em condições de sequeiro e de irrigação por aspersão. Assim, experimento foi desenvolvido no ano agrícola de 2002/03, num Latossolo Vermelho Distrófico. O delineamento experimental utilizado foi o de blocos casualizados com parcelas subdivididas e quatro repetições.
Author : Jauhar Ali
Publisher : Springer Nature
ISBN 13 : 3030665305
Total Pages : 507 pages
Book Rating : 4.0/5 (36 download)
Download or read book Rice Improvement written by Jauhar Ali and published by Springer Nature. This book was released on 2021-05-05 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. By 2050, human population is expected to reach 9.7 billion. The demand for increased food production needs to be met from ever reducing resources of land, water and other environmental constraints. Rice remains the staple food source for a majority of the global populations, but especially in Asia where ninety percent of rice is grown and consumed. Climate change continues to impose abiotic and biotic stresses that curtail rice quality and yields. Researchers have been challenged to provide innovative solutions to maintain, or even increase, rice production. Amongst them, the ‘green super rice’ breeding strategy has been successful for leading the development and release of multiple abiotic and biotic stress tolerant rice varieties. Recent advances in plant molecular biology and biotechnologies have led to the identification of stress responsive genes and signaling pathways, which open up new paradigms to augment rice productivity. Accordingly, transcription factors, protein kinases and enzymes for generating protective metabolites and proteins all contribute to an intricate network of events that guard and maintain cellular integrity. In addition, various quantitative trait loci associated with elevated stress tolerance have been cloned, resulting in the detection of novel genes for biotic and abiotic stress resistance. Mechanistic understanding of the genetic basis of traits, such as N and P use, is allowing rice researchers to engineer nutrient-efficient rice varieties, which would result in higher yields with lower inputs. Likewise, the research in micronutrients biosynthesis opens doors to genetic engineering of metabolic pathways to enhance micronutrients production. With third generation sequencing techniques on the horizon, exciting progress can be expected to vastly improve molecular markers for gene-trait associations forecast with increasing accuracy. This book emphasizes on the areas of rice science that attempt to overcome the foremost limitations in rice production. Our intention is to highlight research advances in the fields of physiology, molecular breeding and genetics, with a special focus on increasing productivity, improving biotic and abiotic stress tolerance and nutritional quality of rice.
Author : R. M. Del Giudice
Publisher :
ISBN 13 :
Total Pages : 35 pages
Book Rating : 4.:/5 (78 download)
Download or read book Irrigação do arroz por aspersão written by R. M. Del Giudice and published by . This book was released on 1974 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foram realizados na Universidade Federal de Viçosa, MG, dois ensaios experimentais visando estabelecer limites mínimos d'água disponível no solo e a profundidade de rega mais eficiente na irrigação do arroz por aspersão, em solos de terraço - PVAC/terraço, predominante naquela unidade da paisagem. Além de um tratamento sem irrigação, que recebia apenas a água das chuvas e outro tratamento por submersão contínua, com lâmina d'água de 5 cm de espessura e renovação permanente, foram comparados quatro tipos de regas periódicas, por aspersão, baseadas na combinação de dois limites mínimos d'água - 40% e 60% da capacidade de campo em duas diferentes profundidades de rega - 10 e 20 cm. O trabalho foi conduzido, por dois anos consecutivos - 1969/70 e 1970/71 - em tanques de cimento cheios com material de solo representativos dos terraços da região. No ano de 1969/70, utilizou-se o cultivar 'Pratão Precoce' de 110-115 dias de ciclo. No segundo ensaio, em 1970/71, usou-se o cultivar 'I.A.C. 1246' com 135-145 dias de ciclo. Adotou-se, nos 2 ensaios, o delineamento experimental blocos ao acaso, com seis tratamentos e quatro repetições. Em duas das quatro repetições, foram instaladas células de "Bouyoucos", em todos os tratamentos, com exclusão do tratamento "Submersão", com a finalidade de serem avaliados e controlados os teores d'água disponível, nas profundidades usadas. Nessas mesmas repetições foram colocadas células de gesso, extras à profundidade de 25 cm, para permitir a avaliação das oscilações abaixo dos limites das profundidade estudadas. Para avaliação da eficiência do abastecimento d'água mediu-se, em quilos, a produção de grãos obtidos em todos os tratamentos, além de se determinar os efeitos da disponibilidade d'água sobre os componentes da produção, quais sejam: número de perfilhos e de panículas por área, número de espiquetas e de grãos cheios por panícula e peso dos grãos.
Author : W.B. Scivittaro
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (79 download)
Download or read book Estado nutricional do arroz irrigado da época de início de irrigação e do manejo da adubação nitrogenada written by W.B. Scivittaro and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: MANEJO DA ÁGUA COM VISTAS À OTIMIZAÇÃO DA NUTRIÇÃO DO ARROZ IRRIGADO. A adubação mineral visa prover, às plantas de arroz, nutrientes em quantidades suficientes para suprir o déficit estabelecido entre sua exigência nutricional e o suprimento do meio de cultivo. As quantidades requeridas variam, porém, em função da interação entre vários fatores: fertilidade do solo; sistema de implantação da cultura; condições climáticas; tipo de planta; características da cultivar e práticas culturais, em especial o manejo da água de irrigação. Com relação a este último fator, é reconhecida sua influência sobre a absorção de nutrientes pelo arroz irrigado. Variações no manejo da água, particularmente no período de irrigação, podem alterar a disponibilidade de nutrientes para o arroz e, conseqüentemente, requerer adequações nas recomendações de adubação. A Embrapa Clima Temperado durante vários anos realizou estudos para avaliar o efeito da época de início da irrigação definitiva e do manejo da adubação nitrogenada sobre o estado nutricional da cultura de arroz irrigado. Como resultado, foi proposto o processo agropecuário, descrito em documento anexo, mostrando que o atraso na entrada de água na lavoura de arroz em até três semanas após o início do perfilhamento favorece o estado nutricional da cultura, devido ao maior desenvolvimento radicular das plantas mantidas sob solo drenado por um período mais longo. Constitui-se, pois, em alternativa de manejo tecnicamente viável para a cultura de arroz irrigado.
Author : Carl W. Schaefer
Publisher : CRC Press
ISBN 13 : 1420041851
Total Pages : 852 pages
Book Rating : 4.4/5 (2 download)
Download or read book Heteroptera of Economic Importance written by Carl W. Schaefer and published by CRC Press. This book was released on 2000-07-28 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heteropterans regularly cause a wide variety and large number of problems for humans - at times on a catastrophic scale. The 37,000 described species of this suborder including many pests, disease transmitters, and nuisances exist worldwide, inflicting damage on crops, forests, orchards, and human life. Inspired by the widespread economic impact of
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ISBN 13 :
Total Pages : 788 pages
Book Rating : 4.E/5 ( download)
Download or read book Agrindex written by and published by . This book was released on 1989 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 568 pages
Book Rating : 4.A/5 ( download)
Download or read book Acta Scientiarum written by and published by . This book was released on 2003 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 474 pages
Book Rating : 4.:/5 (1 download)
Download or read book Revista Ceres written by and published by . This book was released on 2010 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 406 pages
Book Rating : 4.A/5 ( download)
Download or read book Estudos de Política Agrícola written by and published by . This book was released on 1994 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 954 pages
Book Rating : 4.:/5 (31 download)
Download or read book Host Bibliographic Record for Boundwith Item Barcode 30112100650693 and Others written by and published by . This book was released on 2013 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 672 pages
Book Rating : 4.F/5 ( download)
Download or read book Agriculture and Environment for Developing Regions written by and published by . This book was released on 1999 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kusal Das
Publisher : BoD – Books on Demand
ISBN 13 : 1789848288
Total Pages : 146 pages
Book Rating : 4.7/5 (898 download)
Download or read book Hypoxia and Anoxia written by Kusal Das and published by BoD – Books on Demand. This book was released on 2018-12-12 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The molecular deprivation of oxygen is manifested by hypoxia, a deficiency of oxygen and anoxia, or the absence of oxygen supply to the tissues. This book entitled Hypoxia and Anoxia will cover a broad range of understanding on hypoxia and anoxia from molecular mechanisms to pathophysiology. Hypoxia and anoxia stimulate multiple systems through specific cell signal transduction pathways and regulate several transcriptional factors like HIF-1, REST to encode genes for VEGF, Epo, etc. This book will also highlight different types of hypoxia and anoxia along with their impact on apoptosis, cardiovascular pathophysiology, and glucose regulatory mechanisms. This book will be a ready reckoner to give a deep understanding of the oxygen-sensing environment in vivo for researchers, academicians, and clinicians throughout the world.
Author : Teang Shui Lee
Publisher : BoD – Books on Demand
ISBN 13 : 9535104209
Total Pages : 386 pages
Book Rating : 4.5/5 (351 download)
Download or read book Irrigation Systems and Practices in Challenging Environments written by Teang Shui Lee and published by BoD – Books on Demand. This book was released on 2012-03-28 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Irrigation Systems and Practices in Challenging Environments is divided into two interesting sections, with the first section titled Agricultural Water Productivity in Stressed Environments, which consists of nine chapters technically crafted by experts in their own right in their fields of expertise. Topics range from effects of irrigation on the physiology of plants, deficit irrigation practices and the genetic manipulation, to creating drought tolerant variety and a host of interesting topics to cater for the those interested in the plant water soil atmosphere relationships and agronomic practices relevant in many challenging environments, more so with the onslaught of global warming, climate change and the accompanying agro-meteorological impacts. The second section, with eight chapters, deals with systems of irrigation practices around the world, covering different climate zones apart from showing casing practices for sustainable irrigation practices and more efficient ways of conveying irrigation waters - the life blood of agriculture, undoubtedly the most important sector in the world.
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ISBN 13 :
Total Pages : 1610 pages
Book Rating : 4.E/5 ( download)
Download or read book Fitopatologia brasileira written by and published by . This book was released on 2000 with total page 1610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
