Pastos y Forrajes
versión ISSN 0864-0394
MUNOZ, Bárbara C et al. Germinative evaluation of 20 legume accessions stored under unfavorable conditions. Pastos y Forrajes [online]. 2009, vol.32, n.3, pp. 1-1. ISSN 0864-0394.
An evaluation was made of the germinative response of 20 legume accessions from different storage times, under inadequate humidity and temperature conditions, and subject to thermal and acid scarification treatments before seeding, with different temperatures of the substratum. Independently from the storage time, the moisture content of the seeds was lower than 15%. The seeds from the accessions with more than 12 years showed germination percentages lower than 10% for all the essayed planting treatments, except in Centrosema pubescens cv. CIAT 438, Crotalaria sp. cv. Derecha, Crotalaria spectabilis, Crotalaria brownii cv. 687, Macroptilium atropurpureum, Stylosanthes guianensis cv. CIAT 136 and Mimosa invisa. The other accessions showed different degrees of viability loss. The best germinative response occurred in Crotalaria sp. cv. Derecha, M. invisa and Indigofera sp., because they reached final germination percentages higher than 70% for, at least, one of the studied seeding thermoperiods.
Palabras llave : Seed storage; scarification; legumes.