杂交水稻制种,存在着工序烦琐、费工大、成本高、技术性强、产量不稳定等问题。要使父母本花期相遇,授粉良好,结实率高,在父母本抽穗10—15％时,就要进行割叶授粉,制种户感到手续麻烦,割早割迟掌握不准,剑叶割早了影响到籽粒饱满,割迟了又易割掉幼穗或损伤穗子,破坏群体平衡生长,造成产量降低。故如何简化制种程序,保证在父母本花期相遇的基础上授粉良好,结实率高,是制种工作急需解决的问题。近年来,我们对“汕优二号”的制种栽培措 Hybrid rice seed production, there are cumbersome processes, large work costs, high cost, strong technology, output instability and other issues. In order to meet the parents of the flowering period, pollination is good, high rate of fruiting, 10-15% of the parents of the head, it is necessary to cut the leaves pollination, system seed households feel trouble, Affected to the full grain, cut off and easy to cut off young ears or damaged ears, undermine the balanced growth of the population, resulting in reduced production. Therefore, how to simplify the seed production process and ensure that pollination is good on the basis of encountering parents’ flowering period and the rate of seed setting is high, is a problem which is urgently needed for seed production. In recent years, we planted the cultivated measures of “Shanyou 2”