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以成龄新红果苹果树为试材研究证明,丰产稳产树较低产树和变产树在光合性能方面有以下特点:1.树冠叶幕外层面积较大;2.叶幕中层光照状况较好;3.叶幕中层净光合速率高,且外、中层净光合速率相对稳定;在所有测定时期整株净光合速率高。
The results showed that the lower yield tree and the trans-production tree of high-yield stable-yield tree had the following characteristics in photosynthetic performance: 1. The outer area of the canopy leaf curtain was larger; 2. The mid-level illumination of the leaf curtain Better.3. The net photosynthetic rate of leaf middle layer is high, and the net photosynthetic rate of outer and middle layers is relatively stable. The net photosynthetic rate of the whole plant is high in all the measurement periods.