Evaluation of root characters and its relation to drought tolerance in rice

The present experiment was conducted on ten genotypes viz. Dular, IET 826, Aditya, Browngora, IR 64, IR 30, Satabdi, Bandana, Rasi and Panke during wet season of 2008, 2009 and 2010. The experiment was conducted with an objective to identify genotypes with favourable root architecture to reduce yield loss under water stress conditions and to study the genetics of tolerance followed by identification of hybrids with high heterosis for yield and important root characters. On the basis of evaluation for root characters Dular and Browngora proved their efficiency to maintain yield under water stress condition and root volume and root shoot ratio were predominantly controlled by additive gene effect.

Author : Lakshmi Hijam and KK Sarkar