不同富营养化程度水体对水芹生长发育影响的研究  

Study of Different Eutrophication Water's Effects on the Growth of Cress

作　　者：王楠[1] 叶春福[1] 王波[1] 韩旭[1] 

机构地区：[1]苏州大学园艺系,江苏苏州215123

出　　处：《天津农业科学》2013年第12期73-75,共3页Tianjin Agricultural Sciences

摘　　要：利用富营养化水体中氮磷进行植物生产是创新资源化利用污染物的途径之一。采用室内栽培的方式,探索不同富营养化程度水体对水芹生长发育的影响。结果表明:随培养液中氮磷浓度升高,水芹生物量开始升高,生物量的增加值也随着增加,但在生物量增加值达到最大值后,再继续提高培养液氮磷浓度,生物量增加值反而减少;叶片的SPAD值和硝酸还原酶活性随培养液氮磷浓度的升高而升高;根系活力随培养液氮磷浓度增加而减少,且不同处理间根系活力变化具有极显著差异。Using nitrogen and phosphorus existing in eutrophication water to produce plants is one of creative ways to make pollution into useful source. In the research we planted cress indoor and explored the variety of eutrophication water＇s effects on the growth of cress. The result showed that with the concentration of nitrogen and phosphorus in nutrient solution increased, the biomass liveweight of cress increased too, but when the biomass reached the peak, continue raising of the concentration of nitrogen and phosphorus caused the decrease of the biomass of cress; the SPAD and NR activity of leaves increased with the concentration of nitrogen and phosphorus too. On the contrary, root activity of cress decreased when the concentration of nitrogen and phosphorus raised, and between the different experimental treatment, the changes were of significant difference.

关 键 词：富营养化 水芹 生长发育 

分 类 号：S636.3[农业科学—蔬菜学]