STABILITY ANALYSIS FOR FRUIT YIELD AND ATTRIBUTING TRAITS IN CHILLI

Abstract

An attempt has been made in this communication to elucidate the statistical considerations in different approaches used for developing stability models in vegetable crops. In particular, using three years (2004-06) yield and yield related biometrical characters data on 13 varieties of chilli evaluated in randomized block design with three replications at the experimental plot of Indian Institute of Horticultural Research, Bangalore, efforts have been made to develop suitable stability models with a view to identify stable varieties suitable for commercial exploitation in wide range of environment. Stability models (with R2 as 75.4 to 97.5 %) developed individually for yield and yield attributing biometrical characters indicated that Arka Lohit (for red fruit yield (95.9 /ha (q)) and dry fruit yield (25.9 /ha(q)) followed by BC 25 were stable, as they possesses least ecovalence values as compared to others. Results also indicated that KA-2 and PANT-5 were identified as lines suitable for favourable environment and LCA 206 (with yield potential of 78.17/ha (q) was classified as an above average varieties which will respond well to a poor environment.