VA菌根对酸枣实生苗水分生理及光合速率的影响 土壤相对含水量 叶片自然饱和亏 叶片脯氨酸含量 气孔导度 净光合速率 试验 处理 Relative water Leaf water The concentration 蒸腾速率 Somatal Transpiration rates Net photosynthetic Experiments Treatments content of soil saturation of proline conductance (% deficit (% in leaf (% (mmml m2s1) (mml m's) rates (uml m2s) +VAM 20 11.03b 0.0386b 22.10b 1.880b 1.360b +VAM 40 8.10b 0.0230c 40.32a 3.160a 4.930ab +VAM 60 5.34b 0.0155c 46.04a 3.620a 8.970a -VAM 20 29.96a 0.1521a 10.60b 1.170c -2.460c -VAM 40 14.40b 0.0630b 18.50b 1.980b -1.920c -VAM 60 7.37b 0.0571b 20.22b 2.330b 1.360b +VAM 20 13.25b 0.0595b 28.50bc 1,870bc 3.130bc VAM 40 8.63b 0.0269c 37.54b 2.490b 4.634b +VAM 60 5.38b 0.0212c 54.48a 3.878a 9.268a VAM 20 16.02a 0.0812a 16.70c 1.165d -0.420d ·VAM 9.55b 0.0579b 20.58c 1.588cd 0.976cd -VAM 60 7.26b 0.0554b 26.08bc 2.052bg 2.778bd 果树传些须士生瀑程ya⊙2果树专业硕士生课程-yao2 VA 菌根对酸枣实生苗水分生理及光合速率的影响