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以梨为试材，对成花过程中的短枝芽和叶所含钙调素（ＣａＭ）的含量进行了测定。（１）短枝芽的ＣａＭ含量在整个成花前后都明显高于新梢芽的含量，特别是在成花的发端期突然成倍增加，形成高峰；（２）短果枝叶的ＣａＭ与新梢叶有着相近的变化趋势，但在成花前后，短果枝叶的ＣａＭ含量明显高于新梢叶；（３）ＣａＡｃ处理可以使短枝芽所含ＣａＭ的峰值提前出现，ＴＦＰ处理可明显降低ＣａＭ含量和延迟其峰值到来。还就ＣａＭ在成花过程中的作用及与Ｃａ２＋的关系等问题进行了讨论。
Pear was used as test material to measure the content of calmodulin (CaM) contained in the short shoots and leaves during flower bud formation. (1) The content of CaM in short shoots was significantly higher than that in shoots before and after flowering, especially when the flowering stage suddenly increased exponentially, forming a peak; (2) However, the content of CaM in branches and leaves of short fruits was significantly higher than that in shoots before and after flowering. (3) The peak value of CaM contained in short shoots appeared ahead of time with CaAc treatment, and TFP treatment could be significantly reduced CaM content and delay its peak arrival. Also discussed the role of CaM in the flower process and the relationship with Ca2 + and other issues were discussed.