A detailed analysis of a genotype-environment study on rice in Sri Lanka

Abstract

Genotype × Environment (variety × location) interactions are very important in variety trials repeated over different locations. The presence of interaction suggests that recommendation of varieties must be done according to their adaptability and stability over diverse conditions. Published research on Genotype - environment studies on rice in Sri Lanka are relatively few. This study focuses on a detailed yield analysis for the seasons Yala and Maha of a local varietal trial of ten 3 ½ -month rice varieties repeated over 7 locations and recommendations for cultivation are given based on the results of a combined analysis and subsequent measures.