Resumo

WENCOMO, Hilda B  e  ORTIZ, R. Performance of 23 Leucaena spp. accessions under establishment conditions. Pastos y Forrajes [online]. 2010, vol.33, n.3, pp. 1-1. ISSN 0864-0394.

Twenty-three Leucaena spp. accessions from a collection of 180 were evaluated, with the objective of learning their performance under establishment conditions and select the most outstanding ones, based on some morphological and yield indicators. The plants were sown at a distance of 6 x 3 m between rows and plants. The evaluated indicators were: plant height, number of branches, stem diameter and yield. L. leucocephala CIAT-17480, CIAT-9438, CIAT-7988, CIAT-7384 and CIAT-751, as well as L. esculenta CIAT-17225 and CIAT-17229 were the first ones to reach the height and stem diameter according to the established selection criteria. It could be observed that the establishment dynamics of the species from this genus showed differences among the accessions; likewise, it was noticed that all of them fulfilled the selection criteria, although not at the same time. It is concluded that there are intraspecific and interspecific differences in the evaluated material. The most outstanding accessions were L. leucocephala cv. Cunningham, cv. Peru, CIAT-9119, CIAT-9438, CIAT-751, CIAT-7988, CIAT-7384, CIAT-7929, CIAT-17480, cv. Ipil-pil, cv. CNIA-250, L. lanceolata CIAT-17255, CIAT-17501 and L. diversifolia CIAT-17270, for which their utilization in further studies is recommended.

Palavras-chave : Leucaena spp; plant establishment; selection.

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