Hybrid rice combination seed and seed production method

Abstract

The invention belongs to the field of hybrid rice, and provides a hybrid rice combination seed and a seed production method. According to the difference of the initial heading stage of same-stage seeding of a male parent and female parent, male parent seeds of hybridized combination are treated; according to a ratio of the male parent seeds to female parent seeds equal to 1:(5-8), mixed seeding iscarried out; gibberellin is applied per mu in the heading stage, artificial auxiliary pollination is carried out during flowering, and field cultivation and management are carried out by using a ricefield cultivation technology in other stages. The hybrid rice combination seed is produced by organically combining a bio-hybrid community theory applying Qiangsheng biocenoses and matched rice cultivation technologies, and is a hybrid rice seed mixing a suitable proportion of first-filial generation seeds and male parent seeds thereof; a seed production technology of the hybrid rice combinationseed is named hybrid rice combination seed production technology. The technology can enhance the high and stable yield of the hybrid rice variety, prolong the high-yield period, reduce the productioncost of the seeds, expand the improved variety market, and increase economic benefits.

Description

technical field [0001] The invention belongs to the technical field of hybrid rice, and in particular relates to a hybrid rice fusion species and a seed production method. Background technique [0002] At present, the closest existing technology is the mixed planting technology of rice varieties. Many scientific research institutes have carried out "Research on Mixed Planting Modes of Different Rice Varieties and Their Application Effects". The technology of Chinese hybrid rice and seed production involves little. [0003] China's hybrid rice has a history of more than 40 years of development. With the development of the economy, China's hybrid rice technology has been widely promoted and applied in rice-growing areas around the world. At present, our seed market has expanded to Southeast Asia and larger regions. However, in practice, the production of the first generation of hybrid seeds is labor-intensive, labor-intensive, high-cost and low-yield, forming a bottleneck in ...

AI Technical Summary

Problems solved by technology

[0005] In the rainy season with high temperature and high humidity, hybrid rice is severely damaged by diseases and insect pests, and there are very few varieties suitable for planting, which hinder the popularization and application of hybrid rice. development bottleneck

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