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由于栽培水平和技术水平的提高,杂交稻制种的产量基础(如苗穗数、颖花量、花期相遇等)也随之提高,单位间、地区间的产量基础渐趋平衡。本地区多年来的母本结实率一直徘徊在25.1～36.4%之间,最高年份1990年全市杂交稻制种母本结实率为36.4%。要大幅度提高杂交稻制种产量必须在提高母本结实率上下功夫。由宝应县种子公司生产研制的“AB型增粒增效剂”于1990、1991年分别通过市、省级鉴定。我市于1991、1992年分别通过试验示范后,取得了非常好的效果,
Due to the improvement of cultivation level and technical level, the yield base of hybrid rice seed production (such as the number of spikelets per spike, the amount of spikelets, the flowering period, etc.) also increased, and the yield base of inter-unit and inter-region balance. The rate of maternal seed set in the area has been hovering between 25.1% and 36.4% for many years. The highest rate of maternal seed set was 36.4% in 1990 in the city. To significantly increase the yield of hybrid rice seed production must be to improve the rate of seed set. Produced by the seed company in Baoying County developed “AB-type particle booster” in 1990, 1991, respectively, through the city and provincial appraisal. In 1991 and 1992 respectively, our city passed the test and demonstration and achieved very good results.