Assessment of heterotic effects in intra-hirsutum crosses for yield and fiber traits

The present study aimed to determine the heterotic effect in ten F1 hybrids in upland cotton. The experiment was laid out in the experimental field of Botanical Garden, Sindh Agriculture University, Tando Jam with three replications during 2015. The hybrids Chandi-95 x CRIS-134 contributed positive heterosis for plant height (cm) and bolls plant. NIAB-78 x Chandi provides better mid parent heterosis for plant height (cm), boll weight (g) and seed cotton yield. Heterobeltoisis seemed to be more in sympodial branches plant -1 and seed index (g). However, the cross Chandi-95 x Haridost observed to produce relative heterosis and heterobeltoisis for G.O.T %. Hence, the heterotic information provides the better hybrid production in a gene pool.