文献类型： 外文期刊
作者： Zhu, Xudong 1 ; Chen, Hao 2 ; Zhang, Yangjun 3 ; Zhao, Ju 1 ; Zhou, Qingming 1 ; Zhou, Xixin 4 ; Liu, Shuangqing 5 ; Zhu, 1 ;
作者机构： 1.Hunan Agr Univ, Coll Agron, Southern Reg Collaborat Innovat Ctr Modern Prod, Multiple Copping Syst Paddy Area, Changsha 410128, Hunan, Peoples R China
2.Fujian Acad Agr Sci, Inst Crop Sci, Fuzhou 350013, Fujian, Peoples R China
3.Dabeinong Co, Beijing 10080, Peoples R China
4.Hunan Agr Univ, Res Inst New Rural Area, Changsha 410128, Hunan, Peoples R China
5.Hunan Agr Univ, Coll Plant Protect, Changsha 410128, Hunan,
关键词： Mineral elements; Combining ability; Rice; Correlation analysis; Heterosis
期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）
ISSN： 1560-8530
年卷期： 2018 年 20 卷 5 期
页码：
收录情况： SCI
摘要： Understanding the genetic control of mineral element contents in the last three leaves of hybrid rice will shed light on breeding hybrid rice with ideal mineral element contents. In this study, 25 hybrid rice combinations were created using five elite male sterile lines and five restorer lines. The combining ability of potassium (K), calcium (Ca), iron (Fe), copper (Cu), magnesium (Mg), manganese (Mn), phosphorus (P), sulfur (S) and zinc (Zn) in the last three leaves of these crosses were analyzed at both active tillering stage and milky stage. The results showed that the variance of the general combining ability (GCA) of these parents was larger than the variance of the specific combining ability (SCA) of all crosses. Moreover, larger variation range of heterosis was found in the lines crossed from the parents with the larger variance of SCA. The restorer lines exhibited stronger heritability than sterile lines for Ca, Cu, Mn, S, Zn at active tillering stage and for K, Ca, S, Zn at milky stage. The further phenotypic evaluation for tested crosses revealed that the content of some mineral elements in the last three leaves showed positively significant correlation with yield-related traits. Selecting parents with higher GCA and larger variance of SCA will help us develop the hybrid combination with ideal content of mineral elements and good yield performance for the future hybrid rice breeding program. (C) 2018 Friends Science Publishers
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