Correlation and Path Coefficient Analysis of Grain Yield and its Component of  Bread Wheat (Triticum aestivum L.)

A.  Rashed, Motaz; Th.  Hamodi, Arshad; N. AL-Assaf, Ebtisam

doi:10.33899/rjs.2012.27975

	Correlation and Path Coefficient Analysis of Grain Yield and its Component of Bread Wheat (Triticum aestivum L.)
Rafidain Journal of Science
Article 5, Volume 23, Issue 2, 2012, Pages 56-66 PDF (0 K)
DOI: 10.33899/rjs.2012.27975
Authors
Motaz A. Rashed; Arshad Th. Hamodi; Ebtisam N. AL-Assaf
Abstract
Five varieties of bread wheat (Triticum aestivum L.) (Intesar, Rabbea’a, Abo-Chreebe-3, Adnaniya and al-Eaz) and their half diallel crosses were used to study of the following quantitative characters grain yield per plant, number of spikes per plant, number of grains per spikes, 100 grain weight and, harvest index. The study included estimation of genetic, phenotypic and environmental correlation between grain yield and its components. The results give phenotypic correlation was positive and highly significant between grain yield and each of number of spikes per plant and 100 grain weight. while The results give genetic correlation was negative and highly significant between number of spikes per plant and 100 grain weight. Environmental correlation give the result positive and significant between grain yield and each of number of spikes per plant, number of grains per spikes and 100 grain weight. The genotypic and phenotypic path coefficient analysis showed that number of per spike had the highly direct effects on grain yield, 100 grain weight and harvest index. The determination coefficient showed the number of spikes per plant and 100 grain weight was the most important trait was 9.82% and 8.71% respectively, the joint effects 10.99%. It can be dependent for improve the yield bread wheat.
Keywords
Wheat; path coefficient; Correlation

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