Source: Journal of Plant Stress Physiology
Jayant K Solanki and S K Sarangi.
The changes in water use efficiency (WUE) and morphological parameters were studies in two peanut genotypes such as JL-24 and K-9 under drought stress and its recovery. The drought stress was induced at different soil moisture level (100%, 60%, 40% and 20% FC) for 7 days and subsequent recovery for 7 days. In JL-24 genotype, the WUE was found to decrease with the increase in the intensity of drought stress, whereas, in K-9 genotype, the WUE was found to increase with the intensity of drought stress. Further, the decrease in the fresh and dry biomass of whole plant and different parts of plant such as root, stem and leaf in JL-24 genotype was found to be more significant compared to K-9 genotype. The results are discussed in the light of possible mechanisms of drought tolerance in peanut genotypes.