Vol. 11, Issue 7 (2022)

Author(s):
Manish Chavhan, LN Jawale and DS Pardhi

Abstract:
The present investigation entitled, “Genetic diversity and variability for morpho-physiological yield and yield contributing traits” were studied in fourteen inbred lines of kharif sorghum (Sorghum bicolor L. Moench). The experiment was laid out in randomized block design with three replications at Sorghum Research Station, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani during kharif 2021. Fifteen characters or yield contributing traits i.e days to fifty percent flowering, days to maturity, plant height at physiological maturity (cm), leaf dry weight at flowering (g/m²), stem dry weight at flowering (g/m²), leaf area at flowering (cm²), relative water content (RWC) at flowering (%), total chlorophyll content (TCC), chlorophyll stability index (CSI %), 1000 grain weight (g), grain no/panicle, grain yield (q/ha), fodder yield (q/ha) and harvest index (%) were evaluated for diversity and variability studies in fourteen genotypes. Significant differences were observed among all the fourteen genotypes for yield and its yield contributing traits except stem dry weight at flowering (g/m²). The PCV was observed higher than GCV for all the traits. High estimates of genotypic and phenotypic coefficient of variation were observed for grain no per panicle, leaf dry weight, 1000 grain weight, grain yield and total chlorophyll content. High heritability coupled with high genetic advance were recorded for plant height, leaf dry weight, leaf area, chlorophyll stability index, grain no per panicle, fodder yield. Genotype SPV 2504, CSV 27, CSV 31, CSV 39 and PVK 1025 showed the better performance for all the yield contributing characters thus, should be utilized for development of hybrids in breeding programmes.