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杂交水稻制种花期能否相遇,直接关系制种的成败与产量的高低。制种花期不遇的因素很多,除了精确安排播差期外,还受到温、光条件变化,栽培管理不同,土壤肥力的差异,品种特性等因素的影响。为使制种花期能理想相遇,达到高产的目的,在制种过程中必须准确地分析花期的状况,采用有效的调花措施。下面略谈杂交水稻制种调花方法与体会。
Whether the flowering of hybrid rice seed can meet is directly related to the success of seed production and the level of output. In addition to the precise sowing date, but also by the temperature and light conditions, different cultivation and management, soil fertility differences, variety characteristics and other factors. In order to make the flowering of flowers meet the ideal, to achieve the purpose of high yield, in the process of seed production must be accurate analysis of flowering conditions, the use of effective measures to adjust flowers. The following briefly hybrid rice seedling method and experience.