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Mostrando ítems 11-20 de 24
Características tecnológicas y nutricionales de 20 cultivares de frijol común (Phaseolus vulgaris), 1: Características físicas del grano [valor nutritivo].
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-01)
The objective of this work was to estimate the possible effect of variety on the physical, organoleptic and culinary characteristics of 20 bean varieties (10 black, 4 red, 3 beige and 3 white) and, taking yield into ...
Observaciones sobre la distribución espacial de Meloidogyne incognita después de la cosecha en dos plantíos de tabaco burley [Nicotiana tabacum].
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-01)
Two burley tobacco (Nicotiana tabacum L.) fields (A and B) were sampled inmediately after harvest at Repunta, Perez Makin county, Costa Rica, to perform observations on the spatial distribution of Meloidogyne incognita ...
Ciclos bioquímicos en un ecosistema forestal de los Andes Occidentales de Venezuela, 2: Producción y descomposición de los residuos vegetales.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-01)
Litter production (tree stands, each 12 collectors; sampling every two weeks) and litter decomposition (samples of leaves and branches exposed to enviroment, collection every two months) were studied in a montane forest ...
Determinación de los períodos global y crítico de competencia de las malezas con arroz (Oryza sativa L. Inti) de transplante.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-01)
This research work was developed at Lambayeque, Peril. The main aims were to determine weed population, to study their effects on the yield components and to determine the global and critical competition period during ...
Regulación química de la floración y fructificación en ajonjolí (Sesamum indicum L.).
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-07)
The object of this research was to increase the harvested seed in sesame (Sesamum indicum L.). Microscopical observations showed that seeds mature far before the capsules open so it is possible to fasten plant maturity ...
Características químicas de las semillas de tarhui (Lupinus mutabilis) cosechadas en Cuzco, Perú.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-07)
Tarhui (Lupinus rnutabilis) is a legume native to the Highlands (2 500 — 4 500 m above sea level) of Peru, with appreciable resistance to frost, drought and poor soils. Results obtained in this work confirms that tarhui ...
Uso de la isoterma de adsorción para evaluar requerimientos de fósforo, 2: Determinación con base en los datos de adsorción, del requerimiento externo de fósforo para Vigna unguiculata L. var. Tuy [suelos, Venezuela].
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-07)
The external phosphorus requirement for Vigna unguiculata L. var. Tuy (Frijol bayo) was determined in pot and field experiments The chosen soils were corrected for macro and micro-nutrients deficiences using the corresponding ...
Avances de la investigación realizada en el Perú sobre los efectos de la salinidad en la producción de la caña de azúcar [Saccharum officinarum, suelos].
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-07)
In the present work principal results obtained in 5 years of field research with sugarcane cultivated on saline and saline-sodic soils are reported.
All the experiments were carried out with cultivar H32-8560 under field ...
Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.).
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-07)
The effects of water stress on the nitrogen metabolism of three corn (lea mays L ) cultivars (Piranao, Centrahnex, IPEACS III) were studied.
Measurements were made of the Relative Water Content (RWC); nitrate-reductase ...
Descripción de instares y observaciones sobre la biología del gusano verde del repollo, Pieris aripa Boisduval [Brassica oleracea].
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-07)
The importance of crucifers and their pests is given, with emphasis on the lepidopterous pests found in Venezuela Ascia monuste L , Plutella xilostella L and Pieris aripa Boisduval. Descriptions of the different stages ...