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黑莓 (Rubusspp .)赫尔 (Hull)品种扦插苗在土壤相对含水量分别为 85 %以上、70 %～ 80 %、5 0 %～ 6 0 %、45 %～ 5 0 %和 30 %～ 35 %的条件下处理 2 0d ,以土壤相对含水量 70 %～ 80 %的处理为对照 ,测定其叶片单个复叶的鲜重、单位叶面积鲜重、叶片相对含水量、叶绿素含量及可溶性蛋白质含量的变化。结果表明 ,当土壤相对含水量达 85 %以上时 ,所测各项指标与对照相比均无显著差异 ,黑莓生长良好 ,说明黑莓是一种喜湿植物。随着土壤含水量的下降 ,单个复叶的鲜重极显著下降 ;叶片相对含水量在土壤相对含水量为 45 %～ 5 0 %时显著下降 ,在土壤相对含水量为 30 %～ 35 %时极显著下降并达到受轻度胁迫的水平 ;而单位叶面积鲜重、叶绿素含量及可溶性蛋白质含量都比对照有不同程度的增加
The relative water content of Rubus species (Rubusspp.) Hull was above 85%, 70% ~ 80%, 50% ~ 60%, 45% ~ 50% and 30% ~ 35% Under the conditions of 20d, the soil relative water content of 70% ~ 80% of the treatment as a control, the measured single leaf fresh weight, leaf area per unit area fresh weight, leaf relative water content, chlorophyll content and soluble protein content Variety. The results showed that when the soil relative water content reached more than 85%, there was no significant difference between the measured indexes and the control, the blackberry grew well, which indicated that the blackberry was a kind of hi-wet plant. With the decrease of soil water content, the fresh weight of single compound leaf decreased significantly. The relative water content of leaf decreased significantly when the relative water content of soil was 45% ~ 50%. When the relative water content of soil was 30% ~ 35% Significantly decreased and reached the level of mild stress; and unit leaf area of fresh weight, chlorophyll content and soluble protein content than the control increased in varying degrees