High-yield hybrid maize seed production method
A hybrid seed production, high-yield technology, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of reduced seed production purity, poor growth of flower houses, and small number of seeds, and achieves improved seed fullness, The effect of improving seed production purity and yield
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[0014] The present invention is mainly aimed at the flower selection and pollination link, and the detailed process of main hybrid seed production is as follows:
[0015] 1. Strict isolation: Although corn is a common cross-pollinated crop, and the possibility of pollen spreading by wind is small, corn flowers are very attractive to insects, which can easily cause biological confusion and affect seed quality. Therefore, the isolation distance between the corn seeding field and other corn varieties is required to be more than 500 meters.
[0016] 2. Sowing at the right time: The optimum temperature for corn pollen germination is 20-25°C, so seedlings of the right age should be cultivated by adjusting the sowing time and controlling the temperature. In order to make the parents reach the full flowering stage at the right time for hybridization, seedlings can be raised in cold beds. The early and mid-maturing varieties are sown in early November, and the late-maturing varieties a...
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