农业环境科学学报2011，Vol.30Issue(11)：2174-2177,4.
酸雨与稀土镧对大豆幼苗光合光反应复合影响的时间效应研究
Time-effects of Combined Treatments of Simulated Acid Rain and Lanthanum on Photosynthesis of Soybean Seedlings
摘要
Abstract
Time-effects of combined treatment of simulated acid rain( AR) and I,anthanum(La) on photosynthesis in soybean seedling were investigated under hydroponic conditions in order to explore the combined effects on the recovery process of plant.The results indicated that the degree of inhibition on photosynthetic parameters in seedlings with combined treatments was higher than that treated with the single AR (pH3.0, 4.0 )or La (60, 300 mg·L-1). Compared with the single treatment, the combined treatment delayed the recovery process of the parameters (turning points of recovery were lagged)and the recovery degree was smaller,showing that the self-repairing ability of soybean seedlings was significantly affected. The correlation analysis between Pn and other photosynthetic parameters indicated that changes of Pn were mainly influenced by changes of Chi and Hill reaction activity, but not obviously affected by the change of Mg2+-ATPase activity in seedlings under combined treatment. The results indicated that the self-repairing of each photosynthetic parameter was unsynchronized, and the self-repairing ability was related with stress intensity and stress mode.关键词
酸雨(AR)/稀土镧(La)/大豆幼苗/光合光反应/时间效应Key words
acid rain/ Lanthanum/ soybean seedlings/ photosynthetic light reaction/ time-effects分类
资源环境引用本文复制引用
梁婵娟,葛玉晴,吕霞,周青,邹华..酸雨与稀土镧对大豆幼苗光合光反应复合影响的时间效应研究[J].农业环境科学学报,2011,30(11):2174-2177,4.基金项目
国家自然科学青年基金(31000245) （31000245）
江南大学自主科研青年基金(JUSRP11007) （JUSRP11007）
