摘要
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2.885 mg/g·fw,较病叶提高了21.58%;在光强为0～2 000μmol·m-2·s-1范围内,净光合速率(Pn)随光强的增加而增加,直到光饱和点,最大值为10.5 μmol CO2·m-2·s-1;在温度为0～17℃时,Pn随温度增加而升高,17～40℃时,Pn随温度增加而下降,测出其最适生长温度为17℃左右;叶绿素荧光参数Fv/Fm变化较小.
The changes of chlorphyll contents, growing temperature, the light intensity and fluorescence parameters of the virus-free Fragaria daltoniana were studied, The result showed that chlorophyll contents of the virus-free Fragarfa dahoniana was 2,885 mg/g·fw, and increased by 21.58 % compared with the control. Within the range of 0 2 000μmol·m^-2·s^-1,the net photosynthetic rate increased with the increase of the light intensity, the peak value was 10.5μmol·m^-2·s^- 1 at 2 000μmol·m^-2·s^-1. Pn raised within 0～17℃ while it reduced within 17～40℃, From this experiment, we found that the most suitable growing temperature for strawberry was about 17℃ , Chorophyll fluorescence parameter showed that the Fv/Fm had little change.
出处
《许昌学院学报》
CAS
2005年第5期58-61,共4页
Journal of Xuchang University
基金
河南省教育厅科技攻关项目(2003210090)
关键词
脱毒裂萼草莓
光合作用
叶绿素
净光合速率
荧光参数
vires-free Fragaria daltoniana
photosynthesis
chlorophyll
net photosynthetic rate
fluorescence parameters
作者简介
张伟（1980-），男，河南项城人，信阳师范学院生命科学学院助教，从事生物教学与研究工作．
