利用PE模型，分别模拟了水稻前中期与后期不同株型的群体光合量、蒸散量以及水分利用效率。
Using the PE Model, the canopy photosynthesis, evapotranspiration and water use efficiency (WUE) for different rice plant types were simulated.
结果表明：脱毒马铃薯的群体光合速率、群体叶源量、干物重量、叶面积重量、叶面积系数均优于未脱毒处理。
The results showed the mass photosynthetic rate, mass leaf source amount, dry matter weight, leaf areas weight and index of virus-free potato were superior to that of potato.
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