Method for screening high-quality hybrid rice combinations
A screening method, hybrid rice technology, applied in the direction of botanical equipment and methods, application, plant gene improvement, etc., can solve problems such as taking care of one thing and losing another, difficult high-quality breeding goals, etc., to achieve excellent plant and leaf traits, good fruiting, resistance good effect
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Embodiment 1
[0035] ①Using "a high-efficiency breeding method for two-line CMS (ZL201510918232.X)", bred "Yuxiang 7S" and "Yuxiang 8S" and other high-quality two-line CMS; Breeding methods of rice restorer lines (201810859961.6)" bred high-quality aroma-type restorer lines "Yuhui 2103", "Yuxianghui 4478", "Yuxianghui 868" and so on. Sow seeds in mid-to-late August at Hainan Yingzhou Southern Propagation Base, and use high-quality parents for incomplete diallell hybridization in early November.
[0036] ②The new combination was sown at the Yuxi Crop Experimental Station of Chongqing Academy of Agricultural Sciences in Yongchuan, Chongqing on March 8, and planted around April 15. Each combination was planted in 5 rows, with 12 litters in each row, and single seedlings were transplanted, with a planting size of 8. ×6 inches, Yuxiang 203, a high-quality nationally awarded second-grade high-quality rice variety, was used as a control. Cunnuo, a conventional variety of susceptible glutinous ric...
Embodiment 2
[0041] ① Screen high-quality aromatic CMS lines "Yuxiang 813A", "Yixiang 1A" and Luxiang 618A" and other high-quality three-line CMS lines; select rice blast-resistant and high-quality restorer lines "Yuhui 2103", "Yuxianghui 4478" and "Yuxianghui 868" and other good-scented and high-quality restorer lines with good blast resistance. They were sown in early September at the Southern Propagation Base in Yingzhou, Hainan, and incomplete cultivation was carried out in mid-November with the high-quality parents of the fragrant type. Diallel hybrid mating.
[0042] ②The new combination was sown at the Yuxi Crop Experimental Station of Chongqing Academy of Agricultural Sciences in Yongchuan, Chongqing on March 8, and planted around April 15. Each combination was planted in 5 rows, with 12 litters in each row, and single seedlings were transplanted, with a planting size of 8. ×6 inches, Yuxiang 203, a high-quality nationally awarded second-grade high-quality rice variety, was used as...
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