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En varias regiones de Nicaragua, el cultivo de arroz de secano asume un papel importante para la seguridad alimenticia de las familias campesinas, además es fuente de ingresos para éstas. Apartir del 2002, el CIRAD y el CIAT implementan en colaboración en Nicaragua un proyecto de investigación en...


Trouche, G.Narvaez Rojas, LChow, ZCorrales Blandon, J.[Fitomejoramiento participativo del arroz de secano en Nicaragua : Metodologías, resultados y lecciones aprendidas]Fitomejoramiento participativo del arroz de secano en Nicaragua : Metodologías, resultados y lecciones aprendidas
Hershey, Clair H.[Cassava breeding: a multidisciplinary review: proceedings of a workshop held in the Philippines, 4-7, March 1985]Cassava breeding: a multidisciplinary review: proceedings of a workshop held in the Philippines, 4-7, March 1985

The preceding chapter has demonstrated at the macro-level the importance of agricultural and economic growth for the significant reduction in rural poverty in MSEA that has occurred in recent decades. In this chapter we aim to identify and explain the major trends and trajectories of rice-farming...


Cramb, R.A.Newby, Jonathan C.[Trajectories of rice-farming households in mainland Southeast Asia]Trajectories of rice-farming households in mainland Southeast Asia

Brachiaria species are widely sown on the infertile and Al-toxic soils of neotropical savannas. Breeding programs seek to combine edaphic adaptation with other traits in interspecific hybrids. Edaphic adaptation is difficult to assess because it is only manifest in pasture persistence across seve...


Wenzl, PeterArango Vélez, AdrianaChavez, Alba L.Buitrago González, M.E.Patino, GMMiles, John W.Rao, Idupulapati M.[A greenhouse method to screen brachiariagrass genotypes for aluminum resistance and root vigor]A greenhouse method to screen brachiariagrass genotypes for aluminum resistance and root vigor

Acid soils severely reduce maize (Zea mays L.) yield in the tropics. Breeding for tolerance to soil acidity provides a permanent, environmentally friendly, and inexpensive solution to the problem. This study was carried out to determine the relative importance of additive, dominant, and epistatic...


Ceballos, H.Pandey, S.Narro Leon, LAPérez Velásquez, Juan Carlos[Additive, dominant, and epistatic effects for maize grain yield in acid and non-acid soils]Additive, dominant, and epistatic effects for maize grain yield in acid and non-acid soils

For centuries, the populations of Mainland Southeast Asia (MSEA) have endured material poverty, particularly in rural areas and among subsistence-oriented, rice-farming households. In the 20th century in particular, the impact of colonialism, war, and collectivist regimes exacerbated the poverty ...


Cramb, R.A.Gray, G.D.Gummert, M.Haefele, S.M.Lefroy, R.D.B.Newby, Jonathan C.Stür, Werner W.Warr, P.[Implications of farming trends for agricultural research in mainland Southeast Asia]Implications of farming trends for agricultural research in mainland Southeast Asia

In the five countries of Mainland Southeast Asia (MSEA) that are the focus of this review, there is no questioning the importance of rice within the landscape, in the farming systems, in the diet, and even in cultural terms. Currently, an area of about 32 million ha is cultivated to rice each yea...


Lefroy, R.D.B.[Non-rice crops in rice-based farming systems in mainland Southeast Asia]Non-rice crops in rice-based farming systems in mainland Southeast Asia

Plant-to-plant phenotypic variation has been observed within accessions of S. capitata maintained at the Centro Internacional de Agricultura Tropical (CIAT) since shortly following introduction. A small experiment was conducted to determine the potential importance of natural outcrossing as a cau...


Miles, John W.[Natural outcrossing in Stylosanthes capitata]Natural outcrossing in Stylosanthes capitata
Becerra López Lavelle, Luis AugustoGillespie, VJTate, WAEllis, MHStiller, WNLlewellyn, DLWilson, IW[Molecular mapping of a new source of Fusarium wilt resistance in tetraploid cotton (Gossypium hirsutum L.)]Molecular mapping of a new source of Fusarium wilt resistance in tetraploid cotton (Gossypium hirsutum L.)

Participatory plant breeding PPB is a relatively new approach to germplasm development. Overview summaries of cases to date show that most PPB programs were begun within the last 10 years, whether located in public-sector or nongovemment NGO crop-improvement programs. Some have argued that commer...


Sperling, L.Ashby, J.A.Smith, Margaret E.Weltzien, EvaMcGuire, Shawn[Participatory plant breeding: A framework for analyzing diverse approaches]Participatory plant breeding: A framework for analyzing diverse approaches

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