Breeding method of broad-resistance green soybean variety
A technology of green soybean and Guangkangqing, which is applied in the field of soybean disease-resistant breeding, can solve the problems of less resistance to various diseases and monoclonal resistance of soybean varieties, and achieve the effects of increasing yield, reducing pollution, and good resistance
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Embodiment 1
[0019] 1) High-quality green soybean variety Jinpin No. 1 (P), high resistance to cyst nematode disease Kangxian No. 1 (A), high resistance to soybean downy mildew variety Changnong 20 (B), high resistance to soybean gray spot The cultivar Hefeng 29 (C) and the cultivar Ji Nong 32 (D) with high resistance to soybean mosaic virus disease were hybrid parents, and crossed P / A, P / B, P / C, and P / D, and obtained 4 hybrid F 1 , respectively with F 1 -PA, F 1 -PB, F 1 -PC, F 1 -PD said;
[0020] 2) Plant F 1 -PA, F 1 -PB, F 1 -PC, F 1 -10 strains of each PD, self-bred to get F 2 Generation Seed F 2 -PA, F 2 -PB, F 2 -PC, F 2 -PD,, to F 2 -PA, F 2 -PB, F 2 -PC, F 2 -Screen the seed coat color of PD seeds, select 40 seeds each showing green seed coat traits for planting, and identify the disease-resistant species for each combination, and only identify the disease-resistant species of its corresponding resistant parent for each combination , and select one individual pla...
Embodiment 2
[0027] 1) High-quality green soybean variety Longqing soybean No. 1 (P), high cyst nematode resistance variety Kangxian No. 1 (A), high resistance soybean downy mildew variety Changnong 20 (B), high resistance soybean gray spot The diseased variety Hefeng 29 (C) and the highly resistant soybean mosaic virus disease variety Jinong 32 (D) were the hybrid parents, and crossed P / A, P / B, P / C, and P / D, and obtained 4 hybrid F 1 , respectively with F 1 -PA, F 1 -PB, F 1 -PC, F 1 -PD said;
[0028] 2) Plant F 1 -PA, F 1 -PB, F 1 -PC, F 1 -10 strains of each PD, self-bred to get F 2 Generation Seed F 2 -PA, F 2 -PB, F 2 -PC, F 2 -PD,, to F 2 -PA, F 2 -PB, F 2 -PC, F 2 -Screen the seed coat color of PD seeds, select 40 seeds each showing green seed coat traits for planting, and identify the disease-resistant species for each combination, and only identify the disease-resistant species of its corresponding resistant parent for each combination , and select one individual...
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