Morpho-biochemical parameters in blackgram (Vigna mungo L. Hepper) genotypes under drought stress condition

The present study carried out with ten blackgram accessions collected from NBPGR regional centre and T-9(Check) from ICAR-CRIDA, Hyderabad. The experiment was conducted in experimental farm, Department of Genetics, Osmania University Hyderabad during Rabi,2021. The ANOVA results revealed that for treatments all the yield,physiological and biochemical parameters were showed significant variability except 100 seed weight. All the yield and physiological parameters were significant for genotype x treatment except number of branches per plant and canopy temperature. The character seed yield (g/pl) was observed under irrigated condition highest by IC436524 and lowest by T-9. Whereas highest seed yield (g/pl) was observed under drought condition by IC426766. It was also observed that the genotype IC426766 28.84% over its control and 37.65% over T-9 under drought condition. The genotype IC426766 also showed higher proline content, RWC, lower MDA, higher SPAD reading and lower canopy temperature under drought condition. Among ten blackgram accession IC 426766 was identified as drought tolerant/resistance based on morphological, physiological and biochemical parameters.