Abstract            Volume:10  Issue-9  Year-2022         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

Fifteen upland cotton (Gossypium hirsutum L.) genotypes were evaluated for eight traits in randomized complete block design in three replications at Kamashi district of Benishangul-Gumuze Regional State during the 2007 main cropping season. The overall objective was to determine and record phenotypic and genotypic variation of elite cotton lines for utilization of the information in the breeding program to enhance cotton crop productivity and production in Ethiopia. Data were collected on seed cotton yield in kg ha-1 and yield-related traits and subjected to analysis of variance and subsequent estimation of variance components including coefficient of variations, heritability and genetic advance as percent of mean. Genotypes differed significantly for most of the traits and the relatively wide range of the mean values for most of the characters indicated the existence of variations among the tested genotypes. Estimates of phenotypic (PCV) and genotypic (GCV) coefficients of variations were generally laid under low, moderate and high ranges. The PCV values were slightly greater than the GCV values. Moderately high heritability was observed for Days to initial flowering, Days to 50% flowering, days to 65% boll maturity, plant height, boll number, boll weight and seed cotton yield. Estimated genetic advance as percent of the mean was generally low for the four traits and moderate to high for four traits. Among the traits plant height, boll number, boll weight and seed cotton yield had moderate to high genetic advance as percent of mean.

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