安徽农业科学2018，Vol.46Issue(5)：56-57,72,3.
温度对龙葵幼苗叶绿素含量和荧光参数的影响
Effects of Different Temperature on the Content of Chlorophyll in the Leaves of Solanum nigrum L.Seedlings and the Fluorescent Index
摘要
Abstract
[Objective] The research aimed to study the effects of temperature on the chlorophyll content and fluorescence parameters of Solanum nigrum leaves.[Method] Taking the seedlings of Solanum nigrum in the north as test material,the daytime/night temperature (35/30,30/25,25/20,20/15,15/10) were set.Through the determination of chlorophyll content and chlorophyll fluorescence parameters,the effects of different temperature on the chlorophyll content,chlorophyll fluorescence quenching characteristics and light energy allocation of Solanum nigrum were studied,and the adaptive response and physiological mechanism of Solanum nigrum seedlings were studied.[Result] With the decrease of temperature,the contents of chlorophyll a,chlorophyll b,chlorophyll (a + b),Fv / Fm,ΦPS Ⅱ and qP in the seedlings of Solanum nigrum decreased gradually and qN increased,and increased with the extension of time.In low temperature,PS Ⅱ in the leaves of Solanum nigrum seedlings will be inactive or damaged partly,the conversion efficiency of the original light energy decreased and the electron transfer activity weakened,which effectively inhibited the photosynthetic carbon metabolism electron supply efficiency and thus affected the photosynthesis of plants and decreased with temperature inhibition intensified.[Conclusion] The research provides theoretical basis for the artificial cultivation of the new wild Solanum nigrum.关键词
龙葵幼苗/温度/叶绿素含量/荧光参数/影响Key words
Solanum nigrum seedlings/Temperature/Content of chlorophyll/Fluorescent index/Effects分类
农业科技引用本文复制引用
杨彬,金小青,陈修斌..温度对龙葵幼苗叶绿素含量和荧光参数的影响[J].安徽农业科学,2018,46(5):56-57,72,3.基金项目
甘肃农业科技创新项目(GNCX2011-12). （GNCX2011-12）
