Abstract:

Using a population with 127 F2:3 individuals from the cross ‘Taiyan7’ and ‘Burley 21’ to analysis seven yield traits by genetic statistics: plant height, leaf length, leaf width, leaf number, branch number, growth duration and leaf angle in two locations, Fuzhou and Longyan, respectively. The results revealed that obvious segregations exist among almost traits of F2:3 families, which showed typical quantitative characteristics in nature under the two environments. Almost all traits showed normal distributions which reflected these F2:3 families were suitable for QTL mapping. Various differences showed in each trait of the F2:3 families, the CV of branch number were the largest while the leaf length and growth duration was opposed, which indicated that they were greatly influenced by the environment. According to the correlation analyze of yield traits from F2:3 population under the two environments, 13 pairs of traits were extremely significant correlations among 21 pairs, while the correlation coefficient of almost traits were more than 0.3, which showed the main yield traits of F2:3 groups has a complex correlation.