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用ＡＢＴ４号增产灵５种浓度，对杂交稻制种母本，于秧苗一叶一心期喷施，结果显示：喷施的秧苗白根多，对促进分蘖和增加总根长有明显的效果；移栽后早生快发，大田的亩最高苗数和有效穗数增加，使制种产量提高。施用浓度以１５ｐｐｍ为佳。
The results showed that spraying white seedlings with more root and more seedlings had obvious effect on promoting tillering and increasing total root length; Rapidly transplanted early and post-emergence, the maximum number of acres of field seedlings and effective panicles increased, so that seed production increased. The application concentration of 15ppm is better.