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低浓度（０～１００ｍｇ／ｋｇ）的Ｓ－３３０７在２５℃下浸种３６ｈ对水稻种子的发芽率、发芽势基本无影响，对种子的发芽指数和活力指数具有一定的抑制作用，但对幼苗的根芽比及根尖脱氢酶活性具有一定的促进作用。高浓度（大于２００ｍｇ／ｋｇ）Ｓ－３３０７浸种可能对芽产生药害，致使生长畸形，甚至降低发芽率。Ｓ－３３０７浸种对水稻种子萌发特性的影响与抑制胚乳α－淀粉酶活性有关。外施ＧＡ＿３可完全消除Ｓ－３３０７对种子发芽指数、活力指数的抑制作用。
S-3307 at low concentration (0-100 mg / kg) did not affect the germination rate and germination potential of rice seedings at 36 ℃ for 36 h, but had a certain inhibitory effect on seed germination index and vigor index. However, Root bud ratio and apical dehydrogenase activity has a certain role in promoting. S-3307 seed soaking with high concentration (more than 200mg / kg) may cause phytotoxicity to shoots, resulting in abnormal growth and even reducing germination rate. The effect of S-3307 soaking seed germination on the germination characteristics of rice seeds was related to inhibiting the α-amylase activity of endosperm. Exogenous GA_3 can completely eliminate S-3307 on seed germination index, vitality index inhibition.