Physio-biochemical characterization of Wal

Abstract

The field experiment was carried out to study the physiological basis of yield in eighteen different wal (Lablab purpureus L.) genotypes at education and research farm, Dept. of Agril. Botany, College of Agriculture, Dapoli during rabi 2017-18. The experiment laid out in Randomized Block Design with three replications. Rate of photosynthesis varied from 12.97 to 54.31 µmol CO2 m-2 s-1 at 60 days after sowing. The range of stomatal conductance recorded during 30 days period is 0.44 to 1.07 µmol m-2 s-1. Transpiration rate ranged from 10.43 to 15.18 µmol H2O m-2 s-1. The range of chlorophyll content recorded during 60 days period is 2.337 mg/g to 2.997 mg/g. Physiological characterization should provide a standardized record of readily assessable plant characters, which go a long way to identify an accession. Because characterization and evaluation will provide a rapid, reliable and efficient means of information for proper utilization of germplasm. This is also helpful to select suitable parental line for further improvement programme.