Studies on "Three Line" Polima Cytoplasmic Male Sterility Developed in Brassica napus L. |
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Authors: | Fu Tingdong Yang Guangsheng Yang Xiaoniu |
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Institution: | Prof. Dr. Fu;Tingdong, Dr. Yang Guangsheng, Dr. Yang Xiaoniu, Department of Agronomy, Huazhong Agricultural University, Wuhan, 430070 (P. R. China). |
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Abstract: | Polima CMS lines can be divided into three groups according to the sensitivity of male sterility to temperature: 1) high temperature CMS lines (62.9%), 2) low temperature CMS lines (28.6 %) and 3) stable CMS lines (8.5 %). The heterosis of Pol CMS hybrids is evident and common in some of the characters tested, especially in plant seed yield and siliqua number. The cytoplasm has no deleterious effects on the FI characters tested. |
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Keywords: | Brassica napus Polima cytoplasmic male sterility index of heterosis cytoplasmic effect |
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