HETEROSIS FOR YIELD AND YIELD COMPONENTS IN RICE (ORY'ZA SATIVA L.)

Abstract

A set of 10 x 10 diallel crosses excluding reciprocals were made with 10 rice cultivars. The 45 F1's and ten parents were grown in randomized complete block design with three replications. Each entry was represented by single row of 5m length with 30 cm spacing between rows and 20 cm between plants. Observations on six quantitative traits were recorded on five random competitive plants from each row. Heterosis was estimated over the better parent.