热带作物学报2012，Vol.33Issue(2)：230-237,8.DOI:10.3969/j.issn.1000-2561.2012.02.006
土壤水分胁迫对槟榔幼苗叶绿素荧光动力学参数的影响
Effects of Different Water Stress on Chlorophyll Fluorescence Parameters of Areca catechu L.Seedling
摘要
Abstract
The effects of soil water stress on the chlorophyll fluorescence parameters of Hainan areca seedlings were studied, by using a pot experiment with five different soil water contents in this paper. The results showed that the Areca catechu L Seedlings were in the long-term state of water stress would inhibit the betel nut seedlings' PSⅡ primary light energy conversion efficiency, photosynthetic electron transport capacity, PS II photochemical activity, PSⅡ potential photosynthetic activity and PSⅡ potential energy. Soil relative water content ≤30%, betel nut seedlings could not be sustained for effective heat dissipation, but with a higher heat dissipation capacity. Betel nut seedlings PS Ⅱ reaction center would be difficult to reverse the damage. The injuried sites may be located in PSⅡ oxide transport chain or PSⅡ reaction center or the original PSⅡ electron acceptor.关键词
槟榔/土壤水分胁迫/叶绿素荧光动力学参数Key words
Betel nut/ Water stress/ Chlorophyll Fluorescence Parameters分类
农业科技引用本文复制引用
陈歆,刘贝贝,韩丙军,周兆德,彭黎旭,杨福孙..土壤水分胁迫对槟榔幼苗叶绿素荧光动力学参数的影响[J].热带作物学报,2012,33(2):230-237,8.基金项目
中央级公益性科研院所基本科研业务费专项资金(2011hzslJ001) （2011hzslJ001）
中国热带农业科学院环植所博士启动经费(Hzs1007). （Hzs1007）
