Method for producing seeds of hybrid rice

Abstract

The invention relates to a method for producing seeds of hybrid rice. The method has the advantages of high production efficiency, low cost and capability of controlling the growth period of male parents. The method for producing the seeds of the hybrid rice comprises the following steps of: 1) selecting a region and time for seed production; 2) raising seedlings by using the male parents: putting nutritional soil into each seedling raising tray, soaking seeds to accelerate germination of endosperm exposed male parent seeds, placing the seedling raising trays filled with the nutritional soil and the male parent seeds for 48 hours, then transferring to a seedling raising field, and spreading single trays; 3) transplanting the male parent seedlings: transplanting the male parent seedlings obtained in the step 2 to a seed production field by using a rice transplanter; 4) directly seeding and managing female parents: when the male and female parent seeding time difference is within 2 weeks, directly seeding female parent seeds to the seed production field where the male parent seedlings are transplanted; when the male and female parent seeding time difference is more than 2 weeks, conventionally accelerating germination of the female parent seeds and then seeding the female parent seeds to the seed production field where the male parent seedlings are transplanted; 5) monitoring differentiation of young ears and regulating the flowering period; 6) managing the heading and flowering periods; and 7) harvesting.

Description

technical field [0001] The invention relates to a seed production method, in particular to a hybrid rice seed production method. Background technique [0002] In the traditional production method of hybrid rice seed production, the sowing seedling raising, transplanting and pollination of male and female parents are still all done by hand, so the efficiency is low. Operation With the transfer of rural labor force, the scale and stability of hybrid rice seed production bases are greatly affected. On the other hand, the most important thing in seed production is that the flowering periods of the parents meet. If it is ensured that the flowering periods of the parents meet, it is also a hot spot for those skilled in the art. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hybrid rice seed production method with high production efficiency, low cost and capable of controlling the growth period of the male parent. ...

AI Technical Summary

Problems solved by technology

[0002] In the traditional production method of hybrid rice seed production, the sowing seedling raising, transplanting and pollination of male and female parents are still all done by hand, so the efficiency is low