PJB-2019-365
Combining ability analysis for seed cotton yield related traits in upland cotton
Mumtaz Hussain
Abstract
Cotton (Gossypium hirsutum L.) is the one of the significant crop in the world as fiber crop. It is also worthy source of edible oil. To assess the genetics of yield and yield favoring characters an experiment were executed at field area of Plant Breeding and Genetics department, University of Agriculture Faisalabad from 2015-17. Five genotypes of cotton were sown in the glasshouse. At the flowering stage crosses were attempted in all potential combinations. The five parents and 20 F1 crosses were sown in the field in randomized complete block design with three replications. Data on various traits was collected using standard procedures from field when crop is at maturity stage. Data found to be significant for most of the traits when subjected to RBCD. According to GCA estimates, the parent CIM595 verified to be the good general combiner for most of the characters like seed index, lint index, seed weight per plant, number of bolls per plant and sympodial branches. The combination VH371×CIM595 had high SCA effects for most of the important traits of cotton i.e. fiber fineness and fiber length. the cross KEH×VH371 exposed good reciprocal effects for most of the cotton traits i.e. plant height, number of bolls per plant, ginning out turn, seed index, lint index, seed weight per boll, seed weight per plant, number of seed per boll, monopodial branches, number of bolls per plant and seed cotton yield by exposing data to diallel analysis by means of Griffing’s approach model 1 and method 1.
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