Research Progress of Seed Dormancy and Pre-harvest Sprouting of Hybrid Rice
The internal and the external influencing factors for seed dormancy and the mechanism of pre-harvest sprouting (PHS) of rice seeds and its control method were reviewed.The commonly used chemical control methods for PHS at present, such as paclobutrazol, ABA and sprout inhibitors, all have some disadvantages.Therefore, to solve the PHS problem during hybrid rice seed production, it can adopt measures that selecting parents with low PHS rate, using scientific cultivation and management techniques, and reducing amount of 920.
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