Breeding potential of introgressions into upland cotton: genetic effects and heterosis

摘要: With 5 tables Abstract As new technology in the textile industry demands higher quality fibres, improving cotton fibre has become increasingly important. Twelve lines selected from different breeding programmes with diverse characteristics were used for this study. These and their F2 hybrids grown at Mississippi State University research farm three environments. Agronomic traits measured analysed by additive-dominance genetic model. Significant additive effects detected all except seed yield elongation. Dominance significant traits. All MD CS-B16 showed positive lint percentage (LP), indicating that these can be as general combiners to improve LP. MD90ne was a good combiner yield. MD51ne, MD52ne, derived day-neutral associated increased strength. Some middle-parent heterosis both identified. This study revealed inbred line and/or hybrid development.