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以日光温室栽培的桃品种“津柳早红”“巨佳”“春雪”“中油16桃”为试材,使用便携式光合仪测定了光合作用和叶绿素荧光参数,并拟合得到各品种的光响应曲线、二氧化碳响应曲线。结果表明:“津柳早红”“巨佳”“春雪”“中油16桃”光合作用及叶绿素荧光特性差异明显,其中“津柳早红”饱和光强最小,光能利用率较高;CO_2补偿点最低,最耐CO_2亏缺,于适宜设施条件下栽培,生产潜力大。
The photosynthesis and chlorophyll fluorescence parameters were measured by using portable photosynthesis system in the peach cultivars “Zuoliuzaohong”, “Jiujia”, “Chunxue” and “Pei’16 Peach” The light response curve and carbon dioxide response curve of each variety were fitted. The results showed that there were significant differences in photosynthesis and chlorophyll fluorescence between “Jinliu”, “Chunxue”, “Chunxue” and “Zhongyou 16 Peach” Minimum and high utilization rate of light energy. The CO 2 compensation point is the lowest, most resistant to CO 2 deficiency. It is cultivated under suitable facilities and has great potential for production.