Analysis of Heterosis of Yield and Fiber Quality Traits for Genetic Male Hybrid in Cotton

The heterosis of yield and fiber quality traits of 22 hybrids which were crossed with the new genetic male line GA18 was analyzed,the results showed that the average mid-parent heterosis for boll weight was 5.37 % and 50 % combinations showed over-high parent heterosis,but the heterosis of lint percent were not significant.The fiber length of the most combination showed mid-parent heterosis and 50 % combinations showed over-high parent heterosis.The fiber micronaire of the most combinations showed negative heterosis.The combinations of which mid-parent heterosis and over-high parent heterosis for the fiber strength were over 5 % were 36.4 % and 27.3 %.