Combining ability assessment of agronomic characteristics of 8 inbred sweet corn lines

Abstract

This study was conducted to evaluate 28 sweet corn hybrid combinations to determine the combination ability of 8 lines of sweet corn inbred (K60, R111, N1, N4, N5, N7, N8 and N12) of a S8generation. The results showed that the yield of hybrid combinations was in a range of 14.2 to 23.7 tons/ha. Especially, the hybrid combination THL9 had a yield of 23.7 tons/ha, reached the soluble solids content of 13.9%. Meanwhile, the yield of the hybrid combination THL14 reached 21.4 tons/ha and its soluble solids content reached 13.6%. This result was higher than Golden Cob which was the control variable in this study, and had a yield of 17.4 tons/ha and a soluble solids content of 12.2%.Evaluating the combining ability of the yield and total soluble solids content of 8 lines of sweet corn showed that the N4 lines had a higher combining ability than the other lines in terms of fresh corn yield and total soluble solids content. R111 line and N4 line could combine good productivity (ˆSij: 2,433∗) and total soluble solids content (ˆSij reached 0.963∗)