Breeding method of dual-purpose genic male sterility line of high-quality fragrant rice
A technology of a nuclear sterile line and a breeding method, which is applied in the field of breeding of a dual-purpose nuclear sterile line of high-quality aromatic rice, can solve problems such as high technical difficulty, achieve double difficulties, ensure the safety of seed production, and facilitate regeneration and reproduction Effect
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[0028] A kind of breeding method of high-quality aromatic rice dual-purpose male sterile line (for the schematic flow chart, see figure 1 ), including the following steps:
[0029] (1) Fragrance segregation population construction: In 2013, Hainan Qiufan selected the high-quality aromatic rice maintainer Yixiang 1B as the donor, and crossed the low-sterility threshold temperature, high-quality dual-purpose GMS line Y58S as the recipient to obtain F1 (Y58S / Yixiang 1B) generation seeds;
[0030] The F1 generation was planted in Zhengji Yongchuan Base, Chongqing in 2014. Single seedlings were transplanted in 20 holes, and the miscellaneous plants were removed in 2 holes at the heading stage. According to observations, F1 (Y58S / Yixiang 1B) had normal fruiting and no rice blast or sheath blight. , collected all the seeds of F1 strains after maturity, dried and shelled mechanically, compared with Yuxiang 203, eliminated the strains whose rice quality was worse than Yuxiang 203 an...
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