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Mostrando ítems 31-40 de 42
Article
Selecao para periodo de florescimento e estatura de planta e seu efeito no rendimento de graos de trigo
(Embrapa Informação Tecnológica, 1997)
Oito populações segregantes de trigo (Triticum aestivum L.) foram avaliadas quanto aos caracteres ciclo e estatura de planta em duas gerações (F3 e F4), de modo a estabelecer sua influência no rendimento de grãos. As ...
Article
Productividade de trigo (Triticum aestivum (L.) thell.) com tolerância ao alumínio tóxico no solo
(Embrapa Informação Tecnológica, 1994)
Existem afirmações de que aos genes de tolerância ao alumínio (Al) deviam estar ligados genes que limitariam o potencial de rendimento do trigo. Essas afirmações eram baseadas nos resultados de programas de melhoramento ...
Article
Pathogenicity variations of Puccinia recondita f. sp. tritici and P. graminis f. sp. tritici in wheat growing areas of Mexico during 1988 and 1989
(American Phytopathological Society (APS), 1991)
A survey of Puccinia recondita f. sp. tritici in Mexico during 1988 and 1989 indicated the presence of 23 pathotypes. In the Pacific region and Highland Plateau, pathotype TCB/TD predominated both years, followed by TBD/TM. ...
Article
Comparison of methods for inoculation of ears and stalks of maize with Fusarium moniliforme
(American Phytopathological Society (APS), 1990)
Over four plantings from 1986 to 1988, several ear- and stalk-inoculation methods for Fusarium moniliforme were compared on maize (Zea mays). Significant differences were observed among methods in their effect on disease ...
Article
Rentabilidad del sistema de abonera en el Litoral Atlántico de Honduras
(Universidad de Costa Rica, 1994)
Rentabilidad del sistema de abonera en el Litoral Atlántico de Honduras. El Litoral Atlántico de Honduras se ha difundido un sistema de rotación de maíz con Mucuna s. p. conocido por los agricultores con el nombre de ...
Article
Agro-ecological decision support systems for wheat improvement in Ethiopia: Climatic characterisation and clustering of wheat growing regions
(African Crop Science Society, 1999)
Wheat production environments in Ethiopia are highly heterogeneous with respect to natural resource characteristics, cropping systems, biotic and abiotic constraints. This paper analyses the agro-climatic resources of 20 ...
Article
Yield stability analysis of nine spring bread wheat genotypes in the central highlands of Ethiopia
(African Crop Science Society, 1995)
Eight promising bread wheat lines and one standard check cultivars were evaluated for grain yield performance, stability and adaptation across nine environments of the central highlands of Ethiopia. Results of the combined ...
Article
Competitive ability of Ethiopian spring bread wheat cultivars with Avena fatua L.
(African Crop Science Society, 1995)
Competitive interactions of four spring bread wheat cultivars ( Triticum aestivum check for this species in other resources L.) with four wild oat ( Avena fatua check for this species in other resources L.) seedling densities ...
Article
Tecnologias para conservacion y productividad: Sustitutas o complementarias
(Universidad de Costa Rica, 1996)
Tecnologías para conservación y productividad: sustitutas o complementarias. El aumento de la productividad y la conservación de los recursos se anuncian como objetivos deseables de la investigación agrícola pero frecuentemente ...
Article
Grain yield of barley as affected by cropping sequence and fertilizer application in Southeastern Ethiopia
(African Crop Science Society, 1997)
Cropping systems in the Ethiopian highlands involve rotations of cereals with grain legume and oilseed crops; the proportional allocation among crop species varies with altitude, rainfall, and soil type. Barley (Hordeum ...