The present study was carried out at the CCS Haryana Agricultural University, Hisar to characterize and assess genetic diversity in 49 sorghum genotypes on the basis of fifteen morpho-biochemical parameters. Analysis of variance showed highly significant variation for quantitative parameters in the study. The genotypes GP-236 and IS 49021 had the highest average green (462.8 q/ha) and dry (239.2 q/ha) fodder yields, while G-800 and HC 171 had the lowest amounts of HCN (19.1 µg/g) and tannin (0.32 mg/g). IS 651 and IS 49021, respectively, had the highest levels of crude protein (10.94%) and crude protein yield (23.42 q/ha). Green fodder yield showed significant and positive genotypic correlation with plant height, dry matter percentage, dry fodder yield, crude protein, crude protein yield while significant and negative with 100-grain weight, HCN content. Path analysis studies revealed that the characters viz. plant height upto flag leaf base, total plant height, stem diameter, leaf length, 100-grain weight, dry fodder yield etc. had positive effect on green fodder yield while negative effect was shown by time of panicle emergence, 100-grain weight, HCN and tannin content. Therefore, choosing this character might lead to an improvement in yield and yield components.

Genetic diversity, Green fodder yield, HCN, Tannin content, Sorghum

The study concluded the presence of significant variability for the studied traits in the sorghum genotypes. Various genetic parameters indicates the presence of additive gene action for the majority of studied traits that can felicitate for direct selection for these traits. From the studied sorghum genotypes; GP-297, IS 49021, PGN 9 and HC 171 can be used for the enhancement green fodder yield and nutritional attributes. So, Subsequent selection of these traits will increase the breeding efficiency of the genotypes. Hence, due consideration should be given for the traits while selecting parental lines. These superior genotypes can be used for further breeding programmes.

Deepak Kaushik, Yogesh Jindal, Amit, Vikesh Tanwar and Bichhinna Maitri Rout (2023). Exploring the correlated Response and cause-effect Relationship for the Green Fodder Yield and its contributing Traits in Sorghum. Biological Forum – An International Journal, 15(8): 527-530.