Method for breeding hybridized seed of stevia rebaudinum
A technology for hybrid seeds and cultivation methods, applied in the directions of botanical equipment and methods, applications, plant genetic improvement, etc., can solve the problems of poor quality of stevia, high cost of seedlings, difficult to popularize, etc., so as to reduce the cost of seedlings and cultivation. , the effect of easy promotion
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Embodiment 1
[0013] Sow sexual stevia seeds in one mu of land. When the sexual stevia seedlings grow 4 to 6 pairs of true leaves, remove the seedlings and keep 500 sexual stevia plants. At the same time, 4 to 6 pairs will grow out of the seedlings 6,500 cuttage stevia seedlings of true leaves were moved into hybrid planting, the ratio of sexual stevia and cutting stevia hybrid plants was 1:13, the total number of sexual stevia and cutting stevia hybrid plantings was 7,000, and the cutting stevia varieties were marked Planting location, after seeding, collect the cuttings Stevia variety seeds, the yield of hybrid seeds is about 6 kg per mu.
Embodiment 2
[0015] First grow sexual stevia and cutting stevia seedlings, and transplant 1500 sexual stevia seedlings with 4 to 6 pairs of true leaves and cutting stevia seedlings with 4 to 6 pairs of true leaves in an acre of land at the same time 7,500 plants, the ratio of sexual stevia and cutting stevia hybrid plants is 1:5, and the total number of sexual stevia and cutting stevia hybrid plants is 9,000. After seeding, according to the appearance difference between cutting stevia and sexual stevia , to collect the seeds of cutting stevia varieties, and the yield of hybrid seeds is about 10 kg per mu.
Embodiment 3
[0017] First grow the sexual stevia and cutting stevia seedlings, transplant and grow 4 to 67,500 plants in one mu of land at the same time, and plant the sexual stevia seedlings and cutting stevia seedlings alternately, and the sexual stevia and cutting stevia The ratio of the number of hybrid plants is 1:3, and the total number of hybrid plants of sexual stevia and cutting stevia is 10,000. After seeding, the seeds of the cutting stevia varieties are collected separately, and the yield of hybrid seeds is about 9 kg per mu.
[0018] In the present invention, after the seedlings of the cuttage stevia varieties and sexual stevia varieties are raised, they can grow normally under normal natural conditions, can carry out pollen transfer under normal natural conditions, and obtain hybrid stevia seeds after seeding.
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