Performance of Hevea new clones in SIAL series (first selection) at Una, BA, Brazil

Abstract

The present paper shows the performance of twenty-nine rubber tree (Hevea spp) SIAL clones from small-scale trials, all originated from selections conducted in a diferent full-sib and half-sib families. For their performance: of yielding and secundary characteristics such as vigour and disease resistance were evaluated. The clones SIAL 893, SIAL 839, SIAL 842 and SIAL 931 are classified as high yielding over the first two years oftapping in the first selection. Mean yields of these clones ranged between 218 kg and 585 kg per hectare superior to the average of the control clones Fx 2261 and Fx 3864 of two years of tapping. The results showed that it is possible to shorten the clonal evaluation period by three to five years and hence to bring about early selection of planting material to large scale trials in producer areas.