Correlation Studies among Productions Traits in Bread Wheat under Rainfed Conditions

摘要

In order to study correlation among yield and yield component in bread wheat, an experiment wasconducted at new Developmental Research Farm Department of Plant Breeding and Genetics, the Universityof Agriculture, Peshawar during 2013-2014 cropping season under rainfed conditions. Twenty four genotypeswere planted in 6 x 4 alpha lattice designs with three replications. Data were recorded on plant height, tillers m 2,spike length, 1000-grain weight, biological yield, grain yield and harvest index. Analysis of variance revealedsignificant differences among genotypes for all the traits studied, except for grain yield and harvest index.Correlation analysis revealed significant positive genotypic and phenotypic association of grain yield withplant height, tillers m 2, spike length and biological yield. Moreover, significant positive association of grainyield was observed with grains spike 1 and harvest index at phenotypic level only. Strong association of thesetraits with grain yield suggested that these traits could be safely used as selection criterion for furtherimprovement in yield of wheat.