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多效唑提高了地黄叶片叶绿素含量及光合强度,而赤霉素的效应相反。多效唑提高了地黄根茎中可溶性糖含量及蔗糖的含量,但降低了叶片中可溶性糖的含量。多效唑显著降低了根茎酸性转化酶的活性。
Paclobutrazol increased chlorophyll content and photosynthetic intensity of Rehmannia glutinosa, but the effect of GA was opposite. Paclobutrazol increased soluble sugar content and sucrose content in Rehmannia glutinosa rhizomes, but decreased soluble sugar content in leaves. Paclobutrazol significantly reduced the activity of rhizome acid invertase.