Correlation and Path Coefficients Analysis for Yield and its Contributing Traits in Rice (Oryza sativa L.) under Sodic Soil

Abstract

Yield is the complex trait that depends on various attributes. Therefore, the knowledge about the relationship of different attributes to yield is crucial for making efficient selection strategy. The grain yield per plant exhibited highly significant and positive association with biological yield per plant followed by panicle bearing tillers per plant, spikelets per panicle, grains per panicle, chlorophyll content in F1 s at both genotypic and phenotypic level. Highest positive direct effect on grain yield per plant was exerted by biological yield per plant and harvest-index in F1 s at both genotypic and phenotypic level. Therefore, biological yield per plant and harvest index should be utilized in making selection strategy for yield improvement in rice.