Combining Ability for Quantitative Traits Under Normal And Heat Stress Conditions in Maize (Zea Mays L.)

Investigation was carried out to ascertain the genetic architecture for heat tolerance and yield components from diallel crosses in maize (Zea mays L.). The combining ability both normal stress conditions revealed highly significant mean squares due general (GCA) specific (SCA) direct reciprocal all characters except anthesis-silking interval condition of crosses. Estimate variance 13 higher SCA than that GCA characters. CML 411 good combiner grain conditions, whereas, 306 307 were combiners condition, 164, 304 305 average condition. On basis high yield, at least seed parent, 411*CML identified as promising hybrids respectively. Bangladesh J. Bot. 50(3): 659-669, 2021 (September)