摘要
以"京秀"高温锻炼苗(38℃)和未锻炼苗(27℃)为试材,研究其在高(44℃)低(-4℃)温胁迫下对叶绿素荧光参数的影响,结果表明:高温锻炼苗和未锻炼苗在高低温胁迫下的叶绿素荧光Fo和qn均随胁迫时间延长而上升,但高温锻炼苗的总体水平低于未锻炼苗。而Fv/Fm、Fv'/Fm'、∮PSII、Fv/Fo、qp均随胁迫时间延长而下降,但未锻炼苗的总体水平低于锻炼苗。
The heat acclimation（38℃） and Non-acclimation（27℃ ） ＂jingxiu＂ were used as materials. We studied effects of chlorophyll fluorescence by heat （44℃） （cold -4℃ ） stress. The result showed： the minimal fluorescence （Fo） ,photochemical quench （qp） and Non-photochemical quench（qn） in heat acclimation and Non-acclimation also increased with time past ,but heat acclimation was less than Non-acclimation. PSII maximal photochemical effficiency（dark Fv/Fm）, PSII maximal photochemical efficiency（light Fv/Fm 3 ,PSII actual photochemical efficiency（ ∮ Ⅱ） and PSII potential photochemical efficiency （Fv/Fo） in heat acclimation and Non-acclimation decreased with time prolonged, but heat acclimation was higher than Non-acclimation.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2007年第4期131-136,共6页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
关键词
葡萄
交叉适应
叶绿素A荧光参数
温度逆境
Grape
cross adaptation
chlorophylla fluorescence reference
temperature stress
