EKİNCİ, Remzi Dicle Üniversitesi - Ziraat Fakültesi - Tarla Bitkileri Bölümü, TÜRKIYE , BAŞBAĞ, Sema Dicle Üniversitesi - Ziraat Fakültesi - Tarla Bitkileri Bölümü, TÜRKIYE , GENÇER, Oktay Çukurova Üniversitesi - Ziraat Fakültesi - Tarla Bitkileri Böl, Turkey

Genetic Analysis of the Percentage of the First Hand Harvested Cotton Yield in F1 Hybrids of Diallel Crosses

38709

This research was conducted in order to investigate the genetical structure of a population of six cotton genotypes and their half diallel crosses. In this study, Paum-15, Stoneville-453, Fantom, Nazilli-84S, Delcerro and Giza-45 cotton genotypes were used as parents. This study was carried out at GAP International Agricultural Research and Training Center’s experiment area in 2010-2011. The experimental set up was randomized complete block design with three replications. Data were examined by Jinks-Hayman diallel analysis method. According to the results of Jinks-Hayman diallel analysis additive and dominant gene variance were found significant for the percentage of the first hand harvest trait. Presence of partial dominance in the percentage of the first harvest was occurred. Alleles enhancing the trait are dominant. Dominant genes are usually effective in the same direction. The percentage of the first harvest trait management, the frequency of recessive gene alleles is greater than the dominant allele gene frequency and variance of additive gene is more effective than variance of the dominant gene. The highest heritability for both heritability types was recorded for the percentage of the first harvest (h²n=0.514, h²b =0.915). In improving the trait selection in early generations will be more successful.

156

Cotton , The percentage of the first hand harvest , Diallel , Jinks , Hayman , Genetic structure

Yuzuncu Yil University Journal Of Agricultural Sciences

163