The impact of stomata conductance,photosynthetic pigment content and leaf growth speed on tomato (cv.Ailsa Craig) plant were studied under hydroponic culture with different level of water stress by 50,75 and 100 g/L PEG treatment,respectively.

• 以栽培番茄品种AilsaCraig的6叶期幼苗为试验材料,在水培条件下研究了50,75和100g/LPEG水分胁迫对叶片气孔传导、光合色素含量及发叶速度的影响。