A Breeding Method of Gui 5886, a Fragrant Rice Blast-resistant Restorer Line with High Harvest Index
A harvest index and rice blast resistance technology, applied in the agricultural field, can solve the problem of the low proportion of rice blast resistant varieties, and achieve the effects of large ears and more grains, strong rice blast resistance, and good plant and leaf shape.
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[0025] A method for the selection and breeding of Gui 5886, a fragrant rice blast-resistant restorer line with a high harvest index, such as figure 1 As shown, it specifically includes the following steps:
[0026] (1) In the early season of 2012, Gui 582 was used as the female parent and Ba Guixiang was used as the male parent to cross hybrids, and F1 hybrids were harvested;
[0027] (2) In the late season of 2012, F1 materials were planted, and true hybrid plants were determined by molecular marker detection. The true hybrid plants were used as the female parent and Gui 582 as the male parent for backcrossing, and BC was harvested 1 f 1 seed;
[0028] (3) In the early season of 2013, plant BC 1 f 1 Materials, selected by molecular marker-assisted (hereinafter referred to as MAS) containing the target gene fgr, pita, pi1, pi5 The single plant was used as the female parent, Gui 582 was used as the male parent for backcrossing, and BC was harvested 2 f 1 seed;
[0029...
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