Breeding for drought tolerance in some grain sorghum genotypes and their hybrids.

Abstract

This investigation was carried out throught two experiments, frist experiment (pre-experiment) to study the drought tolerance of twenty maintainer lines (B-Iines) and thirty-one restorer lines (R-lines) under two irigation levels (100% as optimum and 40% from the optimum) to identify the best and high yielded lines from both B and R lines under severe water stress in order to use them for releasing new crosses. This experiment was conducted at Shandaweel Agric. Res. Station, Sohag, in two successive seasons 2000 and 2001.