模拟酸雨对菜心生长与部分生理指标的影响  

Effects of artificial acid rain on growth and physiological indexes of flowering chinese cabbage

作　　者：杨妙贤[1] 郑慧明[1] 张伟峰 黄良爱 许汉珍 

机构地区：[1]仲恺农业技术学院园艺系,广东广州510225 [2]广州市绿化公司,广东广州510170

出　　处：《仲恺农业技术学院学报》2001年第3期38-42,共5页Journal of Zhongkai Agrotechnical College

摘　　要：采用田间酸雨喷淋系统 ,研究了模拟酸雨对菜心叶片可见伤害、叶绿素和植株生长的影响 结果表明 ,菜心叶片可见伤害对酸雨的敏感性主要受酸雨的pH影响 ,也受遗传特性、植株生长阶段和环境条件的影响 pH 3.5以下的模拟酸雨使菜心叶片受到伤害 ,叶片细胞膜透性增加 ,并降低叶片叶绿素含量。The visible symptoms damages of artificial acid rain and its effect on the content of chlorophyll, photosynthesis rate and plant growth in flowering chinese cabbage were studied with a field artificial acid rain system. The results were as follows: the sensibility of visible damage to acid rain was mainly determined by pH value of acid rain,though genetic characteristic, plant growth stage and environmental factors also had some effects.Under artificial acid rain of pH<3.5, leaves of flowering chinese cabbage were damaged, chlorophyll content,photosynthetic rate and biological amount decreased, while membrane permeability of leaf increased.

关 键 词：模拟酸雨 菜心 生物量 

分 类 号：X517[环境科学与工程—环境工程]