[Effects of acid rain stress on Eleocarpus glabripetalus seedlings leaf chlorophyll fluorescence characteristics and growth].
A pot experiment was conducted to study the Eleocarpus glabripetalus seedlings leaf chlorophyll fluorescence characteristics and growth in different seasons under simulated acid rain stress (heavy, pH = 2. 5; moderate, pH = 4.0; and control, pH = 5.6). In the same treatments, the leaf relative chlorophyll content (SPAD), maximum PS II photochemical efficiency (F(v)/F(m)), actual PSII photochemical quantum yield (phi(PS II)), plant height, and stem diameter in different seasons were all in the order of October > July > April > January. In the same seasons, all the parameters were in the order of heavy acid rain > moderate acid rain > control. The interactions between different acid rain stress and seasons showed significant effects on the SPAD, F(v)/F(m), plant height, and stem diameter, but lesser effects on phi(PS II), qp and qN.
Yin
Xiu-Min
XM
School of Forestry and Biotechnology, Zhejiang Forestry College, Lin' an 311300, Zhejiang, China. yxm832004@163.com
Yu
Shu-Quan
SQ
Jiang
Hong
H
Liu
Mei-Hu
MH
D015258:Acid Rain / Q000633:toxicity*; D002734:Chlorophyll / Q000378:metabolism*; D005453:Fluorescence; D010788:Photosynthesis / Q000502:physiology; D045332:Photosystem II Protein Complex / Q000378:metabolism; D018515:Plant Leaves / Q000378:metabolism; D036226:Seedlings / Q000254:growth & development / Q000378:metabolism / Q000502:physiology; D013312:Stress, Physiological; D014197:Trees / Q000254:growth & development* / Q000378:metabolism / Q000502:physiology
D015258:Acid Rain; D045332:Photosystem II Protein Complex; D002734:Chlorophyll