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Its draft genome was estimated to be 6,681,652 bp with 5,789 coding sequences (CDSs). Genes encoding for type I to VI secretion systems, PvdQ, proteases, siderophores, hydrogen cyanide synthase, ACC-deaminase, among others, highlight its potential use in biological control of plant pathogens. Tipo: Separatas Palavras-chave: Oryza sativa L.; Pseudomonas fluorescens; Arroz.; Rice. Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1063357 Evaluating a crop-weed simulation model as a tool for weed management in irrigated transplanted rice (Oryza sativa L.) International Rice Research Institute Abamu, Franklin Jacob. 174 leaves : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: Rice; Weeds; Simulation models; Weed control; Nitrogen fertilizers; Irrigation. Ano: 1995 URL: http://hdl.handle.net/123456789/676 Consumer demand for rice grain quality in selected rural and urban markets in the Philippines International Rice Research Institute Abansi, Corazon L.. 108 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: Rice; Consumer preferences; Markets; Prices; Philippines; Rice quality. Ano: 1988 URL: http://hdl.handle.net/123456789/1255 Cytogenetic and molecular analyses of Oryza sativa L. x O. australiensis Domin. and O. sativa L. x O. brachyantha A. Chev. et Roehr derivatives International Rice Research Institute Abbasi, Fida M.. xv, 119 leaves : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: Rice; Cytogenetics; Hybrids; Wild rice; Plant breeding; Molecular biology. Ano: 1999 URL: http://hdl.handle.net/123456789/536 Effects of the foliar application of methanol on the yield and growth of rice (Oryza sativa cv. Shiroudi) Ciencia e Investigación Agraria Abbasian,Abouzar; Mirshekari,Bahram; Safarzade Vishekaei,Mohammad N; Rashidi,Varahram; Aminpanah,Hashem. Effects of the foliar application of methanol on the yield and growth of rice (Oryza sativa cv. Shiroudi). Cien. Inv. Agr. 43(1):17-24. Approximately two decades have passed since it was reported that the foliar application of methanol increased plant biomass and yield. Many subsequent reports have been published concerning the ability or inability to reproduce these initial observations. To evaluate the effect of methanol on rice (Oryza sativa cv. Shiroudi) yield and rice components, a field experiment was conducted at the Tonekabon Rice Research Station in Iran in 2012 and 2013. The experiment had a randomized complete block design (RCBD) with three replicates. The plants were treated with aqueous methanol solutions (0, 6, 12, 18, and 24% (v/v)).... Tipo: Journal article Palavras-chave: Aqueous methanol solution; Correlation; Glycine; Grain yield; Growth; Rice; Tween 80 as a surfactant. Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000100002 Accuracy and precision of phytonematode sampling plans CIGR Journal Abd-Elgawad, Mahfouz Mohamed Mostafa. Sampling accuracy and precision are basic to nematode research and rational management decision. Taylor's Power Law is used to determine sample size. The published power law parameters are used here differently to define levels of reliability associated with a fixed, cost-determined, sample size. Such levels may provide the decision-maker with more informative data on sampling methods and their reliabilities. Instead of solving for unknown sample number, the rearranged equation to solve for sampling accuracy permitted the use of exact Student’s t-values. The t-values for confidence limits and standard normal variate were used. Both statistical techniques resulted in identical confidence band, in terms of being below, at, or above the economic threshold... Tipo: Info:eu-repo/semantics/article Palavras-chave: Action thresholds; Berseem clover; Citrus; Economics; Nematode distribution; Rice. Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4371 AN EXAMINATION OF PROFIT INEFFICIENCY OF RICE FARMERS IN NORTHERN GHANA AgEcon Abdulai, Awudu; Huffman, Wallace E.. This paper employs a stochastic frontier model to examine profit inefficiency of rice farmers in the Northern Region of Ghana using farm-level survey data. The efficiency index, based on a half-normal distribution of the stochastic error term is related to farm and household characteristics. The empirical results show that farmers' human capital represented by the level of schooling contributes positively to production efficiency, suggesting that investment in farmers' education improves their allocative performance. Access to credit and greater specialization in rice production, are found to be positively related to production efficiency. A farmer's participation in nonfarm employment and being older, however, reduce production efficiency. Farmers... Tipo: Working or Discussion Paper Palavras-chave: Africa; Ghana; Production efficiency; Profit frontier; Rice; Crop Production/Industries. Ano: 1998 URL: http://purl.umn.edu/18271 Studies on the photoperiod sensitivity gene in rice (Oryza sativa L.) International Rice Research Institute Abdus Salam, Muhammad. 80 l. : ill. Thesis (Ph.D.) -- University of the Philippines Tipo: Thesis Palavras-chave: Rice; Plant genetics; Plant physiology; Photoperiod; Genes. Ano: 1988 URL: http://hdl.handle.net/123456789/1253 The role and nature of risk in alternative cropping patterns in Claveria, northern Mindanao, Philippines International Rice Research Institute Abedullah. 90 leaves : ill. Thesis (M.S.) -- University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: Rice; Cropping systems; Zea mays; Fallow; Cost benefit analysis; Risk assessment; Philippines. Ano: 1993 URL: http://hdl.handle.net/123456789/820 Risk, information, and fertilizer use in rainfed lowland rice areas of Tarlac, Philippines International Rice Research Institute Abedullah. xi, 171 l. : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: Agricultural economics; Rice; Risk factors; Fertilizers; Rain; Lowlands; Information dissemination; Philippines. Ano: 1998 URL: http://hdl.handle.net/123456789/563 Expression of rice genes homologous of Arabidopsis genes previously related to drought tolerance. Repositório Alice ABREU, F. R. M.; DEUS, K. E. de; PEREIRA, W. J.; SILVEIRA, R. D. D.; VIANELLO, R. P.; BRONDANI, C.. The identification and validation of candidate genes related to traits of interest is a time consuming and expensive process and the homology among genes from different species can facilitate the identification of genes of the target species from the genomic information of a model species. This study aimed to quantify the expression of homologous rice genes previously related to drought tolerance in Arabidopsis. Five genes (CPK6, PLDa, GluR2, CesA8, and EIN2) were identified in rice by the homology of the amino acid sequence between rice and Arabidopsis. The genotypes Douradão (drought tolerant) and Primavera (drought susceptible) were subjected to a water deficit experiment, and subsequently evaluated for gene expression by qPCR for the five homologous... Tipo: Artigo de periódico Palavras-chave: Gene homology; Arroz; Oryza sativa; Acido abscisico; Rendimento; Rice; Abscisic acid; Quantitative polymerase chain reaction; Yields; Arabidopsis. Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1054691 Solubilization of phosphorus in the rhizosphere of lowland rice International Rice Research Institute Abu Saleque, Md.. 112 leaves : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: Phosphorus; Soil nutrient balance; Roots; Rice; Lowlands. Ano: 1994 URL: http://hdl.handle.net/123456789/702 สภาพฟ้าอากาศที่เปลี่ยนแปลง: ผลกระทบของอากาศหนาวเย็นต่อผลผลิตของข้าวในเขตภาคเหนือตอนล่าง Thai Agricultural Acharaporn Na Lampang Noenplab. Rice growing areas in the Lower North of Thailand has been severely affected by extreme climate change seen as cold injury in 2007 dry season. The total affected area was 621,176 rai (99,388 ha) resulted in a drastic loss of 2,749 million Baht ($US 89 million). Since it has been reported that the most sensitive stage to cool temperature is the young microspore stage, approximately 8.5-10 days before flowering, and the critical range of temperature for cold injury resulted in panicle sterility is 15-20 oC. This preliminary investigation firstly aimed to observe visible changes after exposing to cool temperatures. Secondly, to observe the relationship between low temperature and sterility. Thirdly, to measure a subsequent reduction in grain yield of rice cv.... Tipo: Collection Palavras-chave: Rice; Climate change; Cold injury; Young microspore stage; Panicle sterility; Leaf discoloration; Tip degeneration; Yield loss; Lower North region; Supanburi 3; Thailand; ข้าว; สภาพอากาศหนาวเย็น; ผลกระทบจากภูมิอากาศ; การเป็นหมันของรวงข้าว; ปลายรวงฝ่อ; ผลผลิตข้าว; พันธุ์สุพรรณบุรี 3; การเปลี่ยนแปลงของอากาศ; อายุเก็บเกี่ยว; ภาคเหนือตอนล่าง. Ano: 2008 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5097 Technical Efficiency in Bangladesh Rice Production: Are There Threshold Effects in Farm Size? AgEcon Adachi, Kenji; del Ninno, Carlo; Liu, Donald J.. Replaced with revised version of poster 07/21/10. Tipo: Conference Paper or Presentation Palavras-chave: Data Envelopment Analysis; Threshold Estimation; Technical efficiency; Total factor productivity; Rice; Farm size; Bangladesh; Community/Rural/Urban Development; International Development; Productivity Analysis. Ano: 2010 URL: http://purl.umn.edu/61357 On-farm evaluation of crop productivity and soil nitrogen supplying capacity on a rice (O. sativa L)-wheat (T. aestivum L) cropping system in Rupandehi, Nepal International Rice Research Institute Adhikari, Chiranjibi. xviii, 110 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: On-farm research; Soil nutrient balance; Nitrogen; Rice; Wheat; Crop rotation; Nitrogen fertilizers. Ano: 1998 URL: http://hdl.handle.net/123456789/562 Physio-morphological responses of upland rice to shade International Rice Research Institute Adhikari, Niranjan Prasad. 127 leaves : ill. Thesis (M.S.) --University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: Rice; Shade; Plant response; Plant physiology; Plant morphology; Highlands; Upland rice. Ano: 1990 URL: http://hdl.handle.net/123456789/1079 Effects of rice genotype and environment on bacterial blight progression International Rice Research Institute Adhikari, Tika B.. 143 l. : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: Rice; Genotype; Environment; Blight; Bacterial blight of rice. Ano: 1991 URL: http://hdl.handle.net/123456789/958 Is the Green Revolution Vanishing? Empirical Evidence from TFP Analysis for Rice AgEcon Adlas, J.; Achoth, Lalith. A serious concern has been raised recently on the long run sustainability of the productivity effects of Green Revolution technologies in the light of decelerating trend in the yield growth of rice since the mid 1980s under irrigated ecosystem. However, the changes in physical yield are not true measures of productivity from efficiency perspective. Total factor productivity (TFP) is a true measure of economic efficiency of any technology impact. The paper addresses the crucial issue of "is green revolution vanishing" empirically by analyzing TFP for rice in India. Results suggest that various modern technologies (such as modern cultivars) adopted by the farmers over the period have continued to make considerable impact on rice productivity growth-as... Tipo: Conference Paper or Presentation Palavras-chave: Technological change; Productivity; Rice; India; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; O3. Ano: 2006 URL: http://purl.umn.edu/25561 Marker-aided selection for bacterial blight resistance genes and against fertility restoring genes in mestizo hybrid rice (Oryza sativa L.) maintainer and cytoplasmic male sterile lines International Rice Research Institute Agarcio, J.M.S.. xiii, 112 leaves : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños. Tipo: Thesis Palavras-chave: Rice; Plant genetics; Blight; Marker -assisted selection; Genes; Plant fertility; Cytoplasmic male sterility; Hybrids; Bacterial blight of rice; Mestizo (rice variety). Ano: 2005 URL: http://hdl.handle.net/10269/169 Occurrence and survival of Burkholderia glumae (Kurita and Tabei, Comb. nov.) Yabuuchi et al. in rice (Oryza sativa L.) seeds International Rice Research Institute Agbagala, Ma. Lorelei U.. xvi, 67 l. : ill., photographs. Thesis (M.S.) -- University of the Philippines at Los Baños Tipo: Thesis Palavras-chave: Rice; Seed-borne diseases; Burkholderia glumae. Ano: 1997 URL: http://hdl.handle.net/123456789/593 Registros recuperados: 1.440 Primeira ... 1 2 3 4 5 6 7 8 9 ... Última

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