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两系杂交水稻制种能否成功,选择抽穗开花期是关键;确定父母本播差期是保证花期相遇的基本条件;制种能否高产,应以提高异交结实率为主攻方向,而两系杂交稻制种的难点在于防杂保纯.
Two-line hybrid rice seed production success, the choice of heading and flowering is the key to determine the parent sowing date is to ensure that the basic conditions to meet the flowering; seed production can be high yield, should be to improve the outcrossing rate as the main direction, and two Department of hybrid rice seed production is the difficulty of hybrid protection pure.