Sugarcane Breeding Institute, Regional Centre, Karnal 132 001 (Haryana).
Fifteen clones of S. spontaneum were evaluated under normal and rain fed conditions to identify suitable genetic stocks. The clones exhibited no clone-environment interactions for stalk diameter, stalk length, juice extraction per cent and juice quality traits. Highest heritability values coupled with higher genetic correlation between two environments and near unity correlated response of stalk diameter and single stalk weight indicated their importance in selection. Three clones, viz., SES-222, SES-275 and SES-352 showed similar performance in two environments in respect to stalk yield, single stalk weight, stalk diameter and juice extraction percentage and hence identified as the best parents for future utilization in breeding.
Genetic stocks, polymorphism, heritability, variance, correlation studies