Among the five antitranspirants, antitranspirant F1 had the least inhibition effect while antitranspirant F5 had the greatest inhibition effect on the decrease of leaf water potential.

F1处理对两种苗木叶水势下降抑制作用最小，F5处理对两种幼苗叶水势的下降抑制作用最大。

A large amount of research results showed that plants show isohydric behavior when the plant hydraulic and chemical signals cooperate to promote the stomatal regulation of leaf water potential.

当植物水力信号和化学信号共同作用促进气孔对叶水势的调节时，植物对叶水势的调节表现为等水行为。