It was studied that the changes of chlorphyll contents,growing temperature,the light intensity and fluorescence parameters of the virus-free Fragaria daltoniana.

• 对脱毒裂萼草莓的叶绿素含量、生长温度、光强及叶绿素荧光参数变化进行了研究,结果表明:脱毒裂萼草莓叶绿素含量为2。