Stability analysis for quality traits in rice hybrids using AMMI model

Abstract

Eighteen promising hybrids from different agro climatic zones viz., Maruteru, Warangal, Jagtial and Ragolu of Andhra Pradesh, India were subjected to stability by using AMMI model for eleven quality characters. The pooled data was presented as per AMMI model. The analysis of variance indicated that the genotypes and environments were significant for all the quality characters except for milling per cent for genotypes indicating the diversity among the genotypes and environments studied. Among the AMMI components first IPCA axis explained most of the portion of G X E interaction for the characters under study. IPCA 1 was significant for head rice recovery per cent, gel consistency, alkali spreading value and protein content. The promising hybrid APMS 9A x MTU II-143-26-2 showed stability for head rice recovery per cent, milling per cent, volume expansion ratio and kernal elongation ratio whereas, APMS 6A x MTU II -187-6-1-1 reported stability for milling per cent, gel consistency, volume expansion ratio, protein content and amylose content. The highest yielding hybrid APMS 6A x MTU II-110-9-1-1-1-1 recorded stable performance for hulling per cent and milling per cent.