Author(s):

Rahul Singh Rajput

Abstract: The present investigation entitled “Correlation, path analysis, heritability and genetic advance for morpho-physiological characters in bread wheat (Triticum aestivum L.)” was undertaken to study the Correlation, path analysis, heritability and genetic advance for grain yield and its components in F₁ generation of wheat through Line X Tester analysis. Experiment was conducted with 2 replications and 54 genotypes consisting 10 lines viz., 33^rd ESWYT150, 20^th HRWYT213, 20^th HRWYT235, 45^th IBWSN1021, 14^th FHBSN6418, 36^th SAWSN3065, PBW658, KB2013-03, KB2013, VW921 and 4 testers viz., GW273, GW366, RVW 4106, SUJATA and their 40 crosses made in L X T mating fashion in randomized block design at experimental Research Farm, College of Agriculture, Gwalior, (M.P.) during 2014-2015. Genetic analysis revealed that Canopy temperature index and harvest index recorded high value of heritability and genetic advance. Genotypic path analysis revealed that test weight and weight of grain/spike exhibited positive and strong association with grain yield and highest positive direct effects on grain yield. The selection for yield contributing test weight and weight of grain/spike must be given preference along with grain yield for speedy improvement grain yield.

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