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材料为陆地棉(G.hirsutum)品种冀棉11和聊无38B。在田间枯萎病盛发期,以具有典型缩症状的棉株为病株,正常生长的无病棉株为健株对照,进行比较分析。测定叶片净光合速率、气孔导度、蒸腾速率、叶片温度。得到结果如下:1.净光合速率降低;2.气孔导度下降;3.蒸腾速率减少;4.叶片温度上升。
Materials for G. cotton varieties (G.hirsutum) Ji cotton 11 and chat without 38B. In the field of wilt blight, cotton plants with typical reduced symptoms were used as diseased plants, and normal-growth diseased cotton plants were selected as healthy plants with comparative analysis. The net photosynthetic rate, stomatal conductance, transpiration rate and leaf temperature of leaves were measured. The results are as follows: 1. The net photosynthetic rate decreased; 2. Stomatal conductance decreased; 3. Transpiration rate decreased; 4. Leaf temperature rise.