矮壮素

ǎi zhuàng sù duì ǎi qiān niú xué pán miáo shēng zhǎng yǒu kòng zhì zuò yòng

矮壮素对矮牵牛穴盘苗生长有控制作用。

Chlormequat has effect on the growth of petunia seedlings.