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Weeds affecting rice fields in Latin America A botanical description is given of the 25 most important weed species affecting rice fields in Latin America, as well as their geographical distribution. A typical rice field can present up to 30 species of weeds, distributed in four groups: dominant ...
Se presentan la descripción botánica y la distribución geográfica de las 25 especies principales de malezas de los arrozales de América Latina. En un campo de arroz típico, la flora de malezas está constituida por cerca de 30 especies, que se han distribuido en cuatro grupos: dominantes, porque s...
Seven perennial species of African origin-Brachiaria arrecta, B. brizantha, B. decumbens, B. dictyoneura, B. humidicola, B. mutica, and B. ruziziensis-have been used as fodder plants, particularly in tropical America. The history of the commercial cultivars is given, and their most important attr...
We reviewed 97 species of the genus Brachiaria, spanning the whole taxon. The species were arranged in groups according to perceived natural affinities. The morphology of the inflorescence, especially the spikelet, was examined in detail and found to be highly variable; accordingly, the number of...
In this paper authors discuss how to adapt the methodology of wild plant ecogeographic studies when dealing with cultivated species. They show that the model presented by Maxted et al. 1995), with a few changes in emphasis and detail, proves robust enough to be applied to crops. Particular focus ...
Traduction de la partie generale des directives pour l'echange securitaire du materiel genetique d'Eucalyptus de FAO/IPGRI et les conclusions du Panel d'experts.
Esta es una traduccion de la parte general de las directrices tecnicas para la transferencia segura de germoplasma del Eucalyptus de FAO/IPGRI y conclusiones del Grupo de expertos.
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