A kind of breeding method of special ornamental rape varieties
A special type, cabbage-type rape technology, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems affecting the ornamental quality of flowering period, the effect is not significant, the flowers are scarce, and the number of inflorescences is large and the color is bright. Yellow, large and flat effect of petals
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[0034] A kind of breeding method of special-purpose ornamental rape varieties, the breeding process is shown in figure 1 The method comprises the following steps: using the Brassica napus radish cytoplasmic sterile line as the female parent and the Brassica napus line as the male parent to perform hybridization to obtain a hybrid offspring, that is, to obtain the special ornamental rapeseed variety.
[0035] (1) Parent source and breeding steps:
[0036]Choose Brassica napus radish cytoplasmic sterile line 20QA as the female parent. The first flowering stage of 20QA is in late February, the plant height is 1.6-1.7 meters, the number of branches is 10-12, the petals are large and flat, stacked on the side, and the color is bright ; The selection and breeding process of 20QA is as follows: use the double-low line 20B of conventional Brassica napus and the existing radish male sterile line C4QA, and its hybrid offspring and the recurrent parent 20B backcross for 4 generations to ...
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