华北农学报2011，Vol.26Issue(4)：222-227,6.
夜间低温对不同基因型番茄叶绿素荧光参数的影响
Effect of Low Night Temperature on Chlorophyll Fluorescence Parameters in Different Genotypes Tomato Leaves
摘要
Abstract
In order to reveal the effects of low night temperature on chlorophyll content and PS Ⅱ activity in different genotypes tomatoes leaves. The changes of chlorophyll content and chlorophyll fluorescence parameters in chilling-tolerant wild tomato LA 1777 and chilling-sensitive tomato Moneymaker under short-time 15℃(control) , 9℃ and 6℃ night temperature were studied. The results showed that the chlorophyll a, b content and chlorophyll a/b in two genotypes tomato leaves were significantly decreased under low night temperature stress, and the chlorophyll a and b content in Moneymaker significantly decreased than control after 1 d low night temperature treated. The Fo and NPQ increased in two tomatoes leaves under low night temperature, however, Fv/Fm,Φ>PS Ⅱ , ETR and qP were decreased significantly after low night temperature treated. Only NPQ in two tomatoes had the same trend, other fluorescence parameters in Moneymaker leaves had greater changed scale than LA 1777. The results showed that PS Ⅱ activity and electron transfer in cold-sensitive tomato leaves were influenced under low night temperature, and PS Ⅱ activity decreased significantly, but its decline scale was lower in cold-tolerant tomato.关键词
番茄/夜间低温/叶绿素含量/叶绿素荧光参数Key words
Tomato/Low night temperature/Chlorophyll content/Chlorophyll fluorescence parameters分类
农业科技引用本文复制引用
齐红岩,华利静,赵乐,汤羽凡..夜间低温对不同基因型番茄叶绿素荧光参数的影响[J].华北农学报,2011,26(4):222-227,6.基金项目
国家重点基础研究发展计划(“973”计划)(2009CB119000) （“973”计划）
国家现代农业产业技术体系建设专项(nycytx-35-gw23) （nycytx-35-gw23）
辽宁省重大攻关项目(2010215003) （2010215003）
