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Heat treatment for enhanced responsiveness of dorman axillary buds of pineapples
(IICA, San José (Costa Rica), 1994-04)
Explants 3-5 mm in diameter, consisting of dormant axillary buds and adjacent stem tissue, were excised from the stem region of the crown, disinfected, rinsed and immersed in distilled water at 60 deg C for 6 or 8 min ...
Fall armyworm and neotropical cornstalk borer on sorghum and maize intercropped with legumes in Honduras
(IICA, San José (Costa Rica), 1994-04)
The effects of intercropped legumes on densities of Spodoptera frugiperda (FAW) and Diatraea lineolata (NCSB) on sorghum (Sorghum bicolor) and maize (Zea mays) were studied in central Honduras in 1986 and 1987. Sorghum and ...
Some aspects of the biology of the maize stalk borer Busseola fusca fuller (Noctuidae: Lepidoptera) in Kenya
(IICA, San José (Costa Rica), 1994-01)
El período de incubación de los huevos de Busseola fusca fue de 7.5 ¦ 0.5 días. De los 188 huevos incubados por una sola hembra, 3l 71.8 por ciento ovipositó larvas vivas, de las cuales el 30.4 por ciento experimentó ...
Delineation of agricultural systems in a major tropical area of cacao production (Barlovento, Venezuela) by means of multivariate analysis
(IICA, San José (Costa Rica), 1994-04)
Agricultural systems in the Barlovento Valley, a major tropical area of cacao (Theobroma cacao L.) production, were studied according to multivariate statistical methods based on factor analysis. Basic data of samples were ...
Assessment of different insecticides for the suppression of an outbreak of Leucoptera coffeella in Jamaica
(IICA, San José (Costa Rica), 1994-04)
Six insecticides were evaluated for the control of Leucoptera coffeella [Perileucoptera coffeella], in a coffee plantation in Western Jamaica. Nuvacron 40 [monocrotophos], Selecron 500 EC [profenofos], Trigard 75 WP ...
Improved chemical protection of sorghum seed and seedlings from insect pests in Honduras
(IICA, San José (Costa Rica), 1994-01)
Los insectos-plagas limitan la producción del sorgo, Sorghum bicolor (L.) Moench, en el sur de Honduras. En este estudio se compara la eficacia de los insecticidas en la protección de semillas y plántulas de sorgo. El ...
Use of row cover in cantaloupe (Cucumis melo L.) to delay infection of aphid-transmitted viruses in Honduras
(IICA, San José (Costa Rica), 1994-07)
The yield response of cantaloupes grown unde Reemay row cover until female flower appearance was evaluated at La Granja, El Palenque, Los Patos and Monjaras, Departament of Choloteca, Honduras, during the second planting ...
Interspecific hybrid of cassava and its cytogenetic behaviour
(IICA, San José (Costa Rica), 1994-01)
Se examinaron las características meióticas y mitóticas de un híbrido interespecífico entre yuca Manihot esculenta Crantz y M. neusena y de su progenie. El híbrido F1 mostró una meiosis irregular debido a la disparidad de ...