Studies on Genetic Variability in Castor (Ricinus communis L.)

The current research was conducted at the Main Agricultural Research Station in Raichur during the late Rabi season of 2020 to evaluate the variability in yield and its components among 18 castor genotypes preserved at the College of Agriculture in Bheemarayanagudi. ANOVA indicated a significant difference for all analysed characteristics. Plant height, effective length of the main spike, number of capsules on the primary spike, 100-seed weight, and seed production per plant demonstrated high phenotypic and genetic coefficients of variation. Significant heritability with genetic gain percentage was noted for plant height, effective length of the main spike, number of capsules on the primary spike, 100-seed weight, and seed output per plant.