A kind of production method of hybrid rice seed with zero panicle germination

Abstract

The invention discloses a production method of hybrid rice seeds without preharvest sprouting. The production method of the hybrid rice seeds without preharvest sprouting comprises the following stepsthat seed dormancy agent is sprayed in the rice heading to flowering process; field water management is conducted; crop withering promotion agent is sprayed in 13-18 days after pollination is completed; harvest is conducted in 15-20 days after pollination is completed. By means of the method, dual purposes of preharvest sprouting inhibition and seed vitality improvement are achieved.

Description

technical field [0001] The invention relates to a method for producing hybrid rice seeds with zero panicle germination, belonging to the field of rice seed production. Background technique [0002] Generally speaking, about 10 days after rice pollination ends, most of the embryos of the seeds have been fully developed and have the ability to germinate. [0003] However, during the maturity stage of rice seeds, sometimes continuous rainy weather will cause the moisture content of the seeds to be high, and the temperature during the maturity stage will also be high, so that the seeds are under high temperature and high humidity conditions, causing the seeds to germinate on the rice ears before they are harvested. Or germination, greatly reducing the quality of seeds, causing greater losses to seed production enterprises. Therefore, by adopting a certain method to reduce the moisture content of the mature harvest period of the seeds, the moisture content of the seeds cannot re...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the hybrid rice seed maturation period sometimes encountering continuous rainy weather, the moisture content of the seeds is higher, and because the temperature is also higher in the maturation period, causing the seeds to germinate or germinate on the ears of rice, affecting the quality of the seeds, etc., the present invention aims to A method for producing hybrid rice seeds with zero panicle germination is provided. The production method can realize the dual functions of zero panicle germination and improving seed vigor by spraying seed dormancy agents, field water management, spraying crop withering agents and timely and flexible early harvest. Purpose