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| Registros recuperados: 479 | |
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| 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 |
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| 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 |
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| AGUIAR, J. L. P.. |
| ABSTRACT: The Brazilian savana covers a quarter of the national Brazilian territory. About that, 127 millions he are possible for agricultural managerial, 48% were already absorved by productive process. So, the remainder is constituted by frontiers waiting for exploration, part of that was geographicaly placed in areas of North and Northeast regions of country. The area covered with Brazilian savanas, in Northeast region, is abour 361.858,8 km2, and refer to four state (Bahia, Piauí, Ceará and Maranhão). From 1.980 to 2.000, the grain and the oleaginous production, in that region, ocuped about 1.859,4 thousands ha. Roice was the main production, followed by corn and soy. The cultivated area evolution with that grains and with that oleaginous show a tip... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Socioeconomia; Estudo regional; Região Nordeste; Brasil; Socioeconomic; Regional study; Grain; Maize.; Algodão; Arroz; Cerrado; Feijão; Grão; Milho; Soja.; Brazil; Beans; Cotton; Soybeans.; Rice. |
| Ano: 2001 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/562791 |
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| Ahmed, Raisuddin. |
| Conflict between the short run welfare of poor consumers and agricultural production incentives creates some of the most difficult policy issues facing developing countries. Resulting policy option constraints are particularly severe in very low income countries. The conflict may on the one hand impede the growth in al production essential to improve long term welfare of low income consumers, and on the other hand restrain policies to increase consumption, which in the long run is essential to the success of the measures taken to increase production. The widely observed phenomenon of urban bias in food price policy is itself a product of the nature of low income societies and of this complex conflict. This research by Raisuddin Ahmed delineates and... |
| Tipo: Report |
Palavras-chave: Food supply; Bangladesh; Rice; Marketing; Prices; Agricultural and Food Policy; Crop Production/Industries. |
| Ano: 1979 |
URL: http://purl.umn.edu/42223 |
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| Ali, M. Yusuf; Waddington, Stephen R.; Hodson, Dave P.; Timsina, J.; Dixon, John. |
| Responding to demand from expanding poultry feed markets, maize area in Bangladesh rose from only a few thousand hectares in the 1980s to more than 200,000 hectares in 2007-08. This publication describes the rise of maize in Bangladesh, emerging problems or risks, technology options for rice-maize systems, and future research and development needs. It also outlines the role of CIMMYT, through its Bangladesh office, in the establishment and promotion of maize, as well as the provision of germplasm and capacity building for researchers and farmers, in collaboration with the Bangladesh Agricultural Research Institute (BARI), the Department of Agricultural Extension (DAE), and diverse non-governmental organizations. |
| Tipo: Report |
Palavras-chave: Maize; Rice; Cropping patterns and systems; Agricultural development; Planting date; Technology transfer; Yield increases; Bangladesh; Crop Production/Industries; F08; E10. |
| Ano: 2008 |
URL: http://purl.umn.edu/56106 |
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| Alston, Julian M.; Pardey, Philip G.; Chan-Kang, Connie; Magalhaes, Eduardo Castelo; Vosti, Stephen A.. |
| In general, reported rates of return to agricultural R&D are high, but questions have been raised about upward biases in the evidence. Among the reasons for this bias, insufficient attention to attribution aspects-matching of research benefits and costs-is a pervasive problem, the magnitude of which is illustrated here with new evidence for Brazil. Over the period 1981 to 2003, varietal improvements in upland rice, edible beans, and soybeans yielded benefits attributable to research of $14.8 billion in present value (1999 prices) terms; 6.1 percent of the corresponding value of crop output. If all of those benefits were attributed to Embrapa, a public research corporation accounting for more than half Brazil's agricultural R&D spending, the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Brazil; Agricultural R&D; Attribution; Soybeans; Rice; Beans; Benefit-cost ratios; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2004 |
URL: http://purl.umn.edu/14017 |
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| Alvarez,Alba; Fuentes,Jorge Luis; Puldón,Violeta; Gómez,Pedro Julio; Mora,Leonor; Duque,Miriam C.; Gallego,Gerardo; Tohme,Joe M.. |
| Microsatellite polymorphism was studied in a sample of 39 traditional rice (Oryza sativa L.) varieties and 11 improved varieties widely planted in Cuba. The study was aimed at assessing the extent of genetic variation in traditional and improved varieties and to establish their genetic relationship for breeding purposes. Heterozygosity was analyzed at each microsatellite loci and for each genotype using 10 microsatellite primer pairs. Between varieties genetic relationship was estimated. The number of alleles per microsatellite loci was 4 to 8, averaging 6.6 alleles per locus. Higher heterozygosity (H) was found in traditional varieties (H TV = 0.72) than in improved varieties (H IV = 0.42), and 68% of the total microsatellite alleles were found... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic diversity; Microsatellite; Rice; Traditional germplasm. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000600014 |
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| Amornrat Intrman; Sommai Lertna; Andrew Nelson; Tri Deri Setiyono; Francesco Holecz; Pongmanee Thonbai; Preesan Rakwathin. |
| RIICE is an activity in RIICE project which to find ways of helping Asian countries are faced with a natural disaster. Especially floods and droughts caused by the cooperation of the three organizations, namely International Rice Research Institute (IRRI), SARMAP and Rice Department. By the year 2013 - 2015 in the area of responsibility of Suphanburi Rice Research Center and Nakhon Ratchasrima Rice Research Center. In the year 2013 in Nakhon Ratchasima, using satellite COSMO Skymed, type stripmap, resolution 3-meter, width of the image 40 x 40 kilometers. In Suphanburi, using satellite COSMO Skymed, type scansar resolution of 15 meters, the width of the image 100 x 100 kilometers. In each field survey was conducted, collectting geographic coordinates,... |
| Tipo: Collection |
Palavras-chave: Rice; Remote sensing; Yield prediction; Natural disaster; ข้าว; การสำรวจระยะไกล; การพยากรณ์ผลผลิต; ภัยธรรมชาติ. |
| Ano: 2015 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5909 |
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| Registros recuperados: 479 | |
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