Assessment of yield criteria in wheat through correlation and path analysis

Abstract

The present investigation entitled “Assessment of yield criteria in wheat through Correlation and Path Analysis” has been carried out at Agricultural Research Station, Mandore, Jodhpur during rabi 2016-17 to evaluate thirty one genotypes of wheat to asses extent of nature and magnitude of correlation and path coefficient for grain yield and contributing character. The material was planted in randomized block design with three replications and observations were recorded on individual plant basis. In the present investigation, genotypic and phenotypic correlation of grain yield was found to be positive and highly significant correlated with days to heading. Further this character exhibited positively significant correlation with peduncle length, number of tillers per plant and days to maturity. This character had positive non significant association with plant height, spike length and flag leaf area. Path coefficient analysis suggested that the highest positive direct effect on grain yield per plant was exerted by days to heading followed by peduncle length, number of tillers per plant and protein content. In contrast, harvest index, flag leaf area, days to maturity, spike length, 1000 grain weight and plant height contributed considerable negative direct effect on grain yield.