摘要
本文研究在温室条件下模拟酸雨（ｐＨ２．５、３．０、４．０、５．６）对大白菜、番茄、黄瓜、四季豆和洋花萝卜幼苗植株生长和某些生理特性的影响。结果表明，ｐＨ２．５和３．０的模拟酸雨明显伤害蔬菜叶片，造成叶片细胞膜透性增加，叶绿素含量和根伤流量的减少。探讨了酸雨影响蔬菜幼苗生长和生理特性的一般规律和酸度阈值。
AbstractThe influences of simulated acid rain(pH 2.5,3.0,4.0,and 5.6 )on thegrowth and physiological characteristics of Chinese cabbage, tomato, cucu- mber, kidney bean, and radish seedliugs cultivated in green house were st- udied. Results showed that the acid rain with pH2.5 and 3.0 injured theplant leaves, caused the increase in membrane Permeability of leaf cellsand decrease in chlorophyllous contents and bleeding sap from roots. we al-so discussed the general injuring mechanism and limit value of acidic dam-age to plant growth and physiology in the paper.
出处
《农业环境保护》
CSCD
1994年第5期213-216,共4页
Agro-Environmental Protection
