Resultados de búsqueda - "Oryza sativa"

Comparative transcriptional profiling of two contrasting rice genotypes under salinity stress during the vegetative growth stage por Walia, Harkamal, Wilson, Clyde, Condamine, Pascal, Liu, Xuan, Ismail, Abdelbagi M., Zeng, Linghe, Wanamaker, Steve I., Mandal, Jayati, Xu, Jin, Cui, Xinping, Close, Timothy J.

“…Rice (Oryza sativa), a salt-sensitive species, has considerable genetic variation for salt tolerance within the cultivated gene pool. …”
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Combining field and simulation studies to improve fertilizer recommendations for irrigated rice in Burkina Faso por Segda, Z., Haefele, S.M., Wopereis, M. C. S., Sedogo, M.P., Guinko, S.

“…We employed a combination of two simulation models and selected field data to develop alternative fertilizer recommendations (AFR) for irrigated rice (Oryza sativa L.) in Bagré, Burkina Faso. Existing fertilizer recommendations are 82 kg N ha−1 (wet season) or 105 kg N ha−1 (dry season), 31 kg P ha−1, and 30 kg K ha−1. …”
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Long-term effects of organic inputs on yield and soil fertility in the rice-wheat rotation por Yadvinder-Singh, Bijay-Singh, Ladha, J.K., Khind, C.S., Gupta, R.K., Meelu, O.P., Pasuquin, E.

“…The sustainability of the rice (Oryza sativaL.)–wheat (Triticum aestivumL.) rotation is important to Asia's food security. …”
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Effects of residue decomposition on productivity and soil fertility in rice-wheat rotation por Yadvinder-Singh, Bijay-Singh, Ladha, J.K., Khind, C.S., Khera, T.S., Bueno, C.S.

“…Rice (Oryza sativa L.)–wheat (Triticum aestivum L.) farmers in India burn or remove residues to facilitate seedbed preparation. …”
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A microsatellite marker and a codominant PCR-based marker for marker-assisted selection of submergence tolerance in rice por Xu, Kenong, Deb, Rashmi, Mackill, David J.

“…Submergence tolerance is an important trait for rice (Oryza sativa L.) in rainfed lowland conditions and is being evaluated as a weed control strategy for rice seeded directly into standing water. …”
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Convergent evolution of perenniality in rice and sorghum por Hu, F.Y., Tao, D.Y., Sacks, E., Fu, B.Y., Xu, P., Li, J., Yang, Yang, McNally, K., Khush, G.S., Paterson, A.H., Li, Z.K.

“…Rhizomatousness, a key trait contributing to perenniality, was investigated by using an F 2 population from a cross between cultivated rice ( Oryza sativa ) and its wild relative, Oryza longistaminata . …”
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Using leaf color charts to estimate leaf nitrogen status of rice por Yang, Woon-Ho, Peng, Shaobing, Huang, Jianliang, Sanico, Arnel L., Buresh, Roland J., Witt, Christian

“…Leaf color charts (LCCs) have substituted for chlorophyll meter (SPAD) to estimate leaf N status of rice (Oryza sativaL.) and to properly time N fertilizer application. …”
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Yield and soil fertility trends in a 20-year rice-rice-wheat experiment in Nepal por Regmi, A.P., Ladha, J.K., Pathak, H., Pasuquin, E., Bueno, C., Dawe, D., Hobbs, P.R., Joshy, D., Maskey, S.L., Pandey, S.P.

“…The rice (Oryza sativaL.)–wheat (Triticum aestivumL.) cropping system occupies about 13.5 million ha in South Asia and is important for the region's food security. …”
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Rhizobial lipochitooligosaccharide nodulation factors activate expression of the legume early nodulin gene ENOD12 in rice por Reddy, Pallavolu M., Ladha, Jagdish K., Ramos, Marilou C., Maillet, Fabienne, Hernandez, Rowena J., Torrizo, Lina B., Oliva, Norman P., Datta, Swapan K., Datta, Karabi

“…Determining whether rice ( Oryza sativa) can respond to Nod factors could lead to strategies that would make rice amenable to develop a nitrogen‐fixing endosymbiotic association with rhizobia. …”
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Phosphorus fertilizer effects on soil phosphorus pools in acid upland soils por Dobermann, Achim, George, Thomas, Thevs, Niels

“…We quantified the fate and extractability of fertilizer P after two to four crops with four to five P levels applied to upland rice (Oryza sativa L.)–soybean [Glycine max (L.) Merr.] rotations in three experiments in Asia. …”
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Effects of phenotyping environment on identification of quantitative trait loci for rice root morphology under anaerobic conditions por Kamoshita, A., Zhang, Jingxian, Siopongco, J., Sarkarung, S., Nguyen, H.T., Wade, L.J.

“…In the rainfed lowlands, rice (Oryza sativa L.) develops roots under anaerobic soil conditions with ponded water, prior to exposure to aerobic soil conditions and water stress. …”
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Upland rice response to phosphorus fertilization in Asia por George, Thomas, Magbanua, Roger, Roder, Walter, Van Keer, Koen, Trébuil, Guy, Reoma, Veronica

“…Upland rice (Oryza sativa L.) yields on infertile, acid soils in the Asian uplands average only 1 Mg ha−1 Phosphorus deficiency is considered a major soil constraint to increased yield, but little quantitative information is available. …”
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Influence of available nitrogen and rice genotype on associative dinitrogen fixation por Malarvizhi, P., Ladha, J.K.

“…Rice (Oryza sativa L.) genotypes with a high ability to support biological N2 fixation are of interest because they would enhance N gains in the rice‐soil system without changing existing cultural practices. …”
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Nitrogen dynamics of various green manure species and the relationship to lowland rice production por Clément, Alain, Ladha, Jagdish K., Chalifour, François-P.

“…Published information on the influence of the chemical composition of GM on N dynamics in lowland rice (Oryza sativa L.) is scarce. A field experiment was conducted in the 1992 wet season (WS), the 1993 dry season (DS) and the 1993 wet season to compare GM species and urea as sources of N for rice, to monitor N release and uptake during the season, and to verify the effect of the chemical composition of GM on rice yield (including the residual effect on dry season rice). …”
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Nitrogen dynamics and balance in intensified rainfed lowland rice-based cropping systems por Tripathi, B.P., Ladha, J.K., Timsina, J., Pascua, S.R.

“…Nitrogen dynamics and balances in intensive and diversified lowland rice (Oryza sativa L.)‐based cropping systems that receive heavy fertilization, tillage, and irrigation have not been explored. …”
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Spatial and Temporal Variability of Transplanted Rice At the Field Scale por Dobermann, Achim, Pampolino, Mirasol F., Neue, Heinz-Ulrich

“…Measuring rice (Oryza sativa L.) growth in farmers' fields requires plant sampling techniques that take account of spatial and temporal variability. …”
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Nitrogen Losses and Lowland Rice Yield As Affected By Residue Nitrogen Release por Becker, M., Ladha, J.K., Ottow, J. C. G.

“…Synchronizing N supply from incorporated plant residues with N demand of rice (Oryza sativa L.) may increase the plant's N use efficiency and reduce soil N losses. …”
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Legumes As Nitrate Catch Crops During the Dry-To-Wet Transition in Lowland Rice Cropping Systems por George, Thomas, Ladha, J.K., Garrity, Dennis P., Buresh, Roland J.

“…In tropical rice (Oryza sativa L.) lowlands, NO3‒ assimilation by plants during the transition from the dry to the wet season can preclude NO3‒ loss upon soil flooding and permit recycling of this N. …”
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Fallow and Sesbania Effects on Soil Nitrogen Dynamics in Lowland Rice-Based Cropping Systems por Buresh, R.J., Chua, T.T., Castillo, E.G., Liboon, S.P., Garrity, D.P.

“…Vast areas of rice‐growing (Oryza sativa L.) lowlands in Asia are fallowed or cropped with non‐rice crops for part of the year. …”
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Nitrogen Fertilization of Direct-Seeded Flooded Vs. Transplanted Rice. II. Interactions Among Canopy Properties por Dingkuhn, M., Schnier, H.F., De Datta, S.K., Dorffling, K., Javellana, C., Pamplona, R.

“…Growth analyses of transplanted and row‐seeded ‘IR64’ rice (Oryza sativa L.) grown in the Philippines at six levels of applied N indicated that growth and CO2 assimilation rates were low during reproductive growth in row‐seeded as compared with transplanted rice. …”
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