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Papel del fósforo y del cobre sobre el crecimiento y composición del café Arábica cultivado en arena
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1978-04)
Non-flowering two-year old Coffea arabica L. (cv.'S.L 34') plants were grown in sand culture and treated with varying combinations of copper and phosphorus. Increases in the number of leaves and flower buds were observed ...
Compatibilidad de la yuca con cuatro especies silvestres de Manihot de Brasil Central
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1978-01)
Hybridizations between cassava (Yuca), Manibol esculenta Crantz, and the wild species, M anomala Pohl, M. oligantha Pax subsp nesteli, M. gracilis Pax, and M. zehutneri Ule were fertile. Meiosis of the four species was ...
Criterios de selección para mejorar el rendimiento de grano en frijol (Phaseolus vulgaris L.)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1976-04)
Heritabily, genetic advance, and phenotypic and genotypic correlation coefficients calenlated for gain yield and six chamicteis associated with grain yield were taken as selection criteria to improve grain yield in two ...