Study on Photosynthetic Characteristics of Indoor Potted Grape

[Objective] To study the photosynthetic characteristics of potted grape.[Method] Taking Xiahei and Feihong grape varieties as test materials,the diurnal variation of photosynthetic rate,and the photosynthetic rate in different leaf positions,different varieties,and with different leaf age were measured at indoor balcony.The internode length and leaf area were also determined.[Result] The photosynthetic rate at different position leaves was not the same,the photosynthetic rate of mid-position leaf was the highest.internode length and photosynthetic rate of different position leaf were not significantly related,but leaf area and photosynthetic rate were highly related,the diurnal variation of photosynthetic rate of the indoor potted grape showed a single peak curve,different leaf age had different photosynthetic rate,leaf age of 32 days had the highest photosynthetic rate,there was no significant difference in photosynthetic rate between Xiahei and Feihong grape varieties.[Conclusion] The study provides theoretical basis for the high yield and high quality cultivation of potted grapes.