在脱落过程中生长素与脱落酸有拮抗作用。It is antagonistic abscisic acid in abscission.生长素主要是从旺盛生长新梢上正在发育的幼叶产生出来.Auxins are produced mainly by young developing leaves on actively growing shoots.当一植物对不平衡地施用生长素起反应时, 总是产生乙烯.Whenever a plant res...

“生长素”的英语可以翻译为：auxin，growth substance，somatotropin ...