Correlation and path coefficient analysis of lint yield and its components in Egyptian cotton [electronic resource].

Includes bibliographical references.

This investigation was carried out at the experimental farm of the Faculty of Agriculture, ElFayoum University, to study the relationship between lint yield per plant and some important yield components in three Egyptian cotton genotypes (Giza 90, Giza 90 x Aust., and [G.83 x (G.75 x 5844)] x G.80) during the two seasons of 2013 and 2014, using a randomized complete block design with three replications. The results revealed highly significant differences between the genotypes for all traits. Correlation analysis revealed highly significant and positive correlation between lint yield per plant with the number of open bolls/plant (r = 0.929**), lint percentage (r = 0.915**) and boll weight (r = 0.872**). The path coefficient analysis indicated that direct effects of boll weight and the number of open bolls/plant were 47.21 %and 15.03 %on lint yield per plant and their interaction effect was 9.55 %. Total contribution of the above characters over all variation in lint yield per plant was 71.79 %. In general, the results obtained clarify that boll weight and the number of open bolls/plant were the most responsible attributes for lint yield per plant and could be, therefore, considered as selection criteria in cotton breeding programs.

Summary in Arabic.

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