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《Xinjiang Agricultural Sciences》 2005-02
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Analysis of Combining Ability and Heterosis of Main Quality Characters of Winter Wheat

ZHANG Li~(1,3), TIAN Xiao-ming~2, CAO Lian-pu~1, MU Pei-yuan~3,HAN Xin-nian~3,ZOU Bo~3,SANG Wei~1 (1.Agricultural College, Shihhotze University,Shihhotze,Xinjiang 832003,China;2.Bureau of Agriculture of Xinjiang Production and Construction Corps,Urumqi,Xinjiang 830002, China;3.Xinjiang Agricultural Reclamation Academy of Sciences, Shihhotze,Xinjiang 832000,China)  
In the experiments,the content of protein of wheat flour,sedimention value and the rheology characters of dough are studied by means of 11 winter wheat varieties with significantly different dough rheology characters,based on NCⅡ hybridization combination.Results are as follows: Content of protein of the wheat flour, sedimentation value and dough rheology characters are mainly influenced by additive effect; GCA effect is found that the performance of quality characteristics of parents and GCA effect are important bases of parents' apolegamy in the wheat quality breeding. The SCA of different combinations and types of different combinations differ greatly. Different combination types should be applied to different breeding goal in high-quality wheat breeding. High×high type or high×middle type are better in strong muscle wheat breeding selection; High×low type and low×low type are better in weak muscle wheat breeding selection; On the test of average mid-parent heterosis and over-parent heterosis, the average mid-parent heterosis of flour protein content, stability time and valorimenter value is positive while the average mid-parent heterosis of other quality characters and over-parent heterosis of all quality character quality are negative heterosis. On the test of average mid-parent heterosis and over-parent heterosis of the rheology characters of dough among different combination types, hgh×high type and high×middle type show smaller negative heterosis or bigger positive heterosis, while high×low type and low×low type show bigger negative heterosis, which are in accordance with the analysis result of combining ability.
【Fund】: 新疆生产建设兵团以工代赈项目(BTDZ2001-01)
【CateGory Index】: S512.103.51
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