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温室条件下桃(早红珠、早红霞)的净光合速率Pn日变化曲线呈明显的三峰曲线;杏(金太阳、凯特)净光合速率Pn的日变化曲线呈明显的双峰曲线.加富CO2后温室内CO2的日变化趋势发生了极显著的变化,9~13点CO2的浓度大幅度的提高,同时桃Pn的日变化曲线由三峰曲线变成双峰曲线,日平均为7.95CO2μmol.m-2.s-1,比对照提高21.7%.杏Pn的日变化曲线由双峰曲线变成单峰曲线,日平均Pn为8.93CO2μmol.m-2.s-1,比对照提高18.12%.桃、杏果实品质有显著的提高,平均单果重有大幅度的增加,可溶性固形物、可溶性糖、Vc含量显著提高,有机酸含量与对照差异不显著.
The net photosynthetic rate (Pn) diurnal variation curves of Peach (Asarum sativum L. and Zaohongxia) under greenhouse conditions showed a significant three-peak curve, and the diurnal variation curve of net photosynthetic rate Pn of apricot (Golden sun and Kate) showed a bimodal curve. The trend of diurnal variation of CO2 in greenhouse after CO2 enrichment changed significantly. The concentration of CO2 at 9 ~ 13 ℃ increased significantly. The diurnal variation curve of peach Pn changed from three-peak curve to double-peak curve, and the daily average was 7.95CO2μmol .m-2.s-1, increased by 21.7% compared with the control.The daily variation curve of apricot Pn changed from bimodal curve to unimodal curve, the daily average Pn was 8.93CO2μmol.m-2.s-1, which was 18.12 higher than the control The fruit quality of peach and apricot increased significantly, the average fruit weight increased significantly, the content of soluble solid, soluble sugar and Vc increased significantly, while the content of organic acid did not significantly different from the control.