The complete sequence office hoja blanca virus (RHBV) RNA4 has been determined, based on the sequence of the corresponding eDNA clones. RNA4 consists of 1991 nucleotides with two open reading frames (ORFs). One putative ORF is located in the 5'-proximal region of the viral RNA4; it encodes a prot...
The International Center for Tropical Agriculture (CIAT) is celebrating 50 years of collaborative work with hundreds of partners across the tropics. During 50 years, CIAT has led the development and dissemination of technologies, innovative methods, and new knowledge that better enable farmers to...
Male sterility enabled commercialization of heterosis in rice but low seed set remains a constraint on hybrid dissemination. We evaluated 216 F6 maintainer lines for agronomic and floral characteristics in augmented design and selected 15 maintainer lines, which were testcrossed with IR58025A. Fi...
El-Namaky, R.
,
[The Genetic Variability of Floral and Agronomic Characteristics of Newly-Bred Cytoplasmic Male Sterile Rice.]
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The Genetic Variability of Floral and Agronomic Characteristics of Newly-Bred Cytoplasmic Male Sterile Rice.
We determined DNA fingerprints and pathotypes on international differentials for 151 isolates of the rice blast fungus Pyricularia grisea that were collected from 15 rice cultivars at a blast disease breeding nursery in Santa Rosa, Colombia. The pathogen population expressed an extraordinarily hi...
Levy, M
,
Correa Victoria, Fernando J.
,
Zeigler, Robert S.
,
Xu, S
,
Hamer, JE
,
[Genetic diversity of the rice blast fungus in a disease nursery in Colombia]
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Genetic diversity of the rice blast fungus in a disease nursery in Colombia
Phosphorus (P) deficiency is a major biophysical limitation to rice grain yields in sub-Saharan Africa, and low-cost P management strategies are needed by smallholder farmers to reverse soil fertility decline. On-station field and pot experiments were combined with on-farm testing to evaluate the...
Vandamme, E.
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Ahouanton, K.
,
Mwakasege, L.
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Mujuni, S.
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Mujawamariya, G.
,
Kamanda, J.
,
Senthilkumar, K.
,
Saito, K.
,
[Phosphorus micro-dosing as an entry point to sustainable intensification of rice systems in sub-Saharan Africa]
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Phosphorus micro-dosing as an entry point to sustainable intensification of rice systems in sub-Saharan Africa
In West Africa, rice produced locally falls short of meeting the demand and preferences of urban consumers. We analyzed the challenges facing local rice in urban markets and identified policies that can be implemented to improve the competitiveness of the regional rice sector. We argue that witho...
Fiamohe, R.
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Demont, M.
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Saito, K.
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Roy-Macauley, Harold
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Tollens, E.
,
[How Can West African Rice Compete in Urban Markets? A Demand Perspective for Policymakers]
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How Can West African Rice Compete in Urban Markets? A Demand Perspective for Policymakers
Rice yellow mottle virus (RYMV), a mechanically transmitted virus that causes serious damage to cultivated rice plants, is endemic to Africa. Varietal selection for resistance is considered to be the most effective and sustainable management strategy. Standardized resistance evaluation procedures...
Pinel-Galzi, A.
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Hébrard, E.
,
Traoré, O.
,
Silué, D.
,
Albar, L.
,
[Protocol for RYMV Inoculation and Resistance Evaluation in Rice Seedlings]
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Protocol for RYMV Inoculation and Resistance Evaluation in Rice Seedlings
Functional properties of normal and waxy starches from maize, rice, potato, and cassava as well as the modified waxy maize starch COLFLO 67 were compared. The main objective of this study is to position the recently discovered spontaneous mutation for amylose-free cassava starch in relation to th...
Sánchez, T.
,
Dufour, D.L.
,
Moreno, I.X.
,
Ceballos, H.
,
[Comparison of pasting and gel stabilities of waxy and normal starches from potato, maize, and rice with those of a novel waxy cassava starch under thermal, chemical, and mechanical stress]
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Comparison of pasting and gel stabilities of waxy and normal starches from potato, maize, and rice with those of a novel waxy cassava starch under thermal, chemical, and mechanical stress
Adding biochar to soils and maintaining high earthworm biomasses are potential ways to increase the fertility of tropical soils and the sustainability of crop production in the spirit of agroecology and ecological engineering. However, a thorough functional assessment of biochar effect on plant g...
Noguera, D
,
Rondón, Marco Antonio
,
Laossi, KR
,
Hoyos Villegas, V.
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Lavelle, Patrick M.
,
Carvalho, M.H.C. de
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Barot, S
,
[Contrasted effect of biochar and earthworms on rice growth and resource allocation in different soils]
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Contrasted effect of biochar and earthworms on rice growth and resource allocation in different soils
The present work was conducted to identify microsatellite markers linked to the rice blast resistance gene Pi-1(t) for a marker-assisted selection program. Twenty-four primer pairs corresponding to 19 microsatellite loci were selected from the Gramene database (www. gramene.org) considering their...
Fuentes, JL
,
Correa Victoria, Fernando J.
,
Escobar, F.
,
Prado Patiño, G.A.
,
Aricapa, María Girlena
,
Duque E., Myriam Cristina
,
Tohme, Joseph M.
,
[Identification of microsatellite markers linked to the blast resistance gene Pi-1(t) in rice]
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Identification of microsatellite markers linked to the blast resistance gene Pi-1(t) in rice