Estimation of genotypic and phenotypic correlations for some growth traits and grain yield of Wheat genotypes

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Research Paper 01/05/2017
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Estimation of genotypic and phenotypic correlations for some growth traits and grain yield of Wheat genotypes

Kamal Hassan Ghallab, Abdel-Aziz Nasr Sharaan, Samir K. A. Ismail
Int. J. Agron. Agri. Res.10( 5), 53-58, May 2017.
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Two field experiments were conducted in 2013/2014 and 2014/2015 growing seasons at the experimental farm of the Faculty of Agriculture, Fayoum University. Forty genotypes of bread wheat were planted in a randomized complete block design with three replications whit aim to study the phenotypic and genotypic correlations for growth and grain yield traits. Data showed that genotypic correlation coefficients were higher than the corresponding phenotypic (rp) correlation coefficients in all studied traits except, 12 phenotypic ones at 105 days age and only three cases at 130 days age where phenotypic associations were higher than their corresponding genotypic (rg) correlation coefficients. These trait pairs of higher magnitude of rp than rg were; PLH with NT and each of NT, NLP and LA with both DWP and GYP as well as each of PLH and DWP with GYP in addition NT with GY (at 105 days). On the other hand, at 130 days age, rp values were higher than rg ones only for each PLH and DWP with EXT as well as DWP with GYP. The data led to conclude that GYP would be increased through good building of plant organs and total plant biomass that resulted in enough DWP and consequently improved grain yield.


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