Agronomía Costarricense 37(1)
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Precomposting of organic residues and its effect in the population dynamics of Einsenia foetida
(2013-07-03)Composting and vermicomposting are processes used to transform organic solid residues into fertilizers (compost and vermicompost, respectively). The physical, chemical and biological properties of vermicompost result in ... -
Control of Dysmicoccus brevipes (Hemiptera: Pseudococcidae) on the pineapple fruit, San Carlos, Costa Rica.
(2013-07-03)The study evaluated 6 products for Dysmicoccus brevipes control in pineapple production (Ananas comosus). The laboratory test was conducted in the BioEco Natural Company S.A., biocontrol laboratory in Aguas Zarcas, San ... -
Cryopreservation de of shoots and seeds of cedar (Cedrela odorata L.)
(2013-07-03)In order to protect the forest resources of Cedrela odorata L., currently threatened, it was considered necessary to establish a protocol for its cryopreservation. Research was conducted using shoots and seeds. Vitrification ... -
Agronomic and nutritional evaluation of african star grass-based pastures (Cynodon nlemfuensis) in the region of Monteverde, Puntarenas, Costa Rica. I. Dry matter yield and phenology.
(2013-07-03)Dry matter yield and phenology of african star grass (Cynodon nlemfuensis)- based pastures were evaluated in 4 commercial dairy farms nearby to the region of Monteverde (latitude 10°20’ N, longitude 84°50’ W, 800 to 1200 ... -
Evaluation of practices associated with the removal of flowers, lateral or central fruits and/or first hand in the banana bunch
(2013-07-03)Practices associated with banana bunch management were evaluated in the Caribbean of Costa Rica during 2011 in 6 experiments. These were, 1 and 2: with (control) and without deflowering; 3 and 4: without (control) and with ... -
Genetic resistance of tomato hybrids [Solanum lycopersicum L. (Mill.)] to tomato spotted wilt virus (TSWV)
(2013-07-03)This research was conducted at the PROINPA Foundation’s greenhouse and laboratory in Cochabamba, Bolivia in 2012. Its objective was to evaluate the resistance and susceptibility to Tomato spotted wilt virus – TSWV, Tomato ... -
Cryopreservation of teak (Tectona grandis L.f) seeds
(2013-07-03)Teak (Tectona grandis L.f) is a tropical tree of commercial value due to the high demand of its high-quality wood and rapid growth. Genetic improvement programs for this species have resulted in seeds of better quality ... -
Identification of the agent causing anthracnose on Sansevieria spp., in Costa Rica.
(2013-07-03)Sansevieria spp. (Agavaceae), native to Africa and Asia, is a foliage ornamental known as “mother-in-law’s tongue” or sansevieria. S. trifasciata (St) is the species with the highest number of cultivars on the Costa Rican ... -
Presence of Colletotrichum acutatum and Colletotrichum gloeosporioides on leatherleaf fern, key lime, papaya, star fruit and mango in Costa Rica and Florida (United States)
(2013-07-03)Anthracnose is a disease caused by several species of the genus Colletotrichum on different hosts. C. acutatum and C. gloeosporioides are 2 morphologically similar species that can cause similar disease symptoms on the ... -
Effect of fungicides propineb and mancozeb on the nutritional status of banana plants growing under hydroponic culture
(2013-07-03)The effect of reiterative and/or alternate application of propineb and mancozeb fungicides on the nutritional status and growth of banana seedlings produced in vitro culture was evaluated. The greenhouse experiment was ...
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