首页|期刊导航|中国农业科学（英文版）|Effects of Low Temperature Stress and INA Bacteria on Chlorophyll a Fluorescence Induction Kinetics in Young Fruit of Two Apricot Cultivars
中国农业科学（英文版）2002，Vol.1Issue(12)：1344-1349,6.
Effects of Low Temperature Stress and INA Bacteria on Chlorophyll a Fluorescence Induction Kinetics in Young Fruit of Two Apricot Cultivars
Effects of Low Temperature Stress and INA Bacteria on Chlorophyll a Fluorescence Induction Kinetics in Young Fruit of Two Apricot Cultivars
摘要
Abstract
Effects of low temperature and INA bacteria on the change of chlorophyll a fluorescence inyoung fruit from two apricot cultivars were investigated. Low temperature decreased the potential activity(Fv/Fo) ,conversion efficiency of primary light energy (Fv/Fm)of PS Ⅱ and photochemical quenching (qP) inyoung fruit of two apricot cultivars. Low temperature enhanced non-photochemical quenching qN, decreasingthe quantum yield of photosynthetic electron transfer. The presence of ice nucleating active (INA) bacteria in-tensified the effects of low temperature, raised the injury temperature threshold from - 4℃ to - 2 - - 3℃.INA bacteria can be a factor to induce frost susceptibility of apricot fruit. The amount of damaged PS Ⅱ activi-ty center was related to apricot fruit size and cultivar.关键词
Apricot, Young fruit, Chlorophyll a fluorescence, PS Ⅱ activity center, qP, qN, Cold resis-tance, Ice nucleating active bactetiaKey words
Apricot, Young fruit, Chlorophyll a fluorescence, PS Ⅱ activity center, qP, qN, Cold resis-tance, Ice nucleating active bactetia引用本文复制引用
YANG Jian-min,MENG Qing-rui,PENG Wei-xiu,WANG Xue-dong,ZHANG Yuan-hui,SUN Fu-zai,ZHAO Ting-chang,LI Shao-hua..Effects of Low Temperature Stress and INA Bacteria on Chlorophyll a Fluorescence Induction Kinetics in Young Fruit of Two Apricot Cultivars[J].中国农业科学（英文版）,2002,1(12):1344-1349,6.基金项目
This work was supported by the Natural Science Fund of Hebei,China (399147). （399147）
