Assessment of variability of Horse gram (Macrotyloma uniflorum (Lam.) Verdc) germplasmlines for morphological and physiological traits

Abstract

The study was conducted to assess the mean, range and variance of various morphological and physiologicaltraits.The total of 108 horse gram germplasm lines along with checks (GPM-6,CRIDA-18R,CRHG-4) were grown inaugmented block design during kharif 2021-22 at the College of Agriculture,Vijayapur. Analysis of variance revealed that themean sum of squares attributable to germplasm lines vs checks were significant for all the traits except seed yield per plant,fodder yield per plant, test weight and SPAD chlorophyll meter reading at 30 and 60 days.The mean and range of horsegramgerm plasm lines for different characters like days to 50 percent flowering was 78.34 days and 58.00-87.48 days, respectivelyand for other traits like days to maturity was (147.83 days and119.14 days to171.81days), plant height (29.36cm and10.28to 42.70 cm), number of pods per plant (28.58 and 17.02 to 41.02), number of seeds per pod (4.52 and 3.29 to 6.02), testweight (3.69 g and 2.26 - 4.61g), fodder yield per plant (8.24 g and 4.02 to10.98 g), seed yield per plant (4.38g and 2.33g(CG-Kulthi) to 7.67g (GPM-19) and some of physiological traits like specific leaf weight (3.41mg/cm2and1.18-5.90mg/cm2),leaf area index which ranged from 1.13 to 5.54 with mean of 2.96. The range of genotypic variance and phenotypicvariance for seed yield and yield attributing traits was 0.04 to 56372.89,0.08 to 67584.39, while the magnitude of genotypicvariance and phenotypic variance was maximum for seed yield (56372.89 and 67584.39, respectively) and the range ofgenotypic variance and phenotypic variance for physiological traits was 0.28 to 64.80, 0.44 to100.30,the maximumgenotypic variance and phenotypic variance was recorded in seed yield (64.80 and 100.30, respectively).