激光生物学报摘要, 更新时间: 2007年11月11日
  由美国生科集团 (BVTech, Inc.) 主办
  
低温弱光对以色列番茄幼苗生长及生理指标的影响
激光生物学报摘要 2007-5

张兆轩,万赛罗,欧 超,王 娣,林 毅*, 蔡永萍 (安徽农业大学生命科学学院,安徽 合肥 230036)

摘 要:用以色列引进品种F-044和安徽省地区主栽品种皖红3号番茄为材料,研究在不同低温(10℃/5℃)弱光(60 μmol·m-2·s-1)处理下及恢复过程中,番茄幼苗生长及生理指标的变化。结果表明:各处理指标变化趋势相同;10 ℃低温弱光处理后,番茄幼苗生长势、叶片叶绿素含量及SOD、CAT活性下降,而POD活性、MDA含量,根冠比上升。各指标在恢复期内均能恢复到对照水平; 5℃低温弱光胁迫后,F-044仅地上部分干物质积累受胁迫影响,根冠比上升了14.97 %,而皖红3号因地下干物质积累减少显著,根冠比则下降了27.74%;各处理下F-044的各项指标变化、恢复情况均显著好于皖红3号,低温弱光耐性强于皖红3号。


Effects of Chilling under Low Light on Vegetative and Physiological Parameters of the Israeli Tomato Seedlings

ZHANG Zhao-xuan, WAN Sai-luo, OU Chao, WANG Di, LIN Yi*, CAI Yong-ping (School of Life Sciences, Anhui Agriculture University, Hefei 230036, Anhui, China)

Abstract : We used the tomato F-044 introduced from Israel and the Wanhong NO.3 which is mainly planted in Anhui province as our materials and studied the changing of the vegetative and physiological parameters under the different low temperature (10℃/5℃) and low light (60 μmol·m-2·s-1).The results showed that: the physiological parameters in every group has the same changing tendency; the seedlings didn't grow well, and the content of chlorophyll in leaf has been decreased as well as the activities of SOD and CAT under the poor light in 10℃,contrarily the activities of POD, the content of MDA and the root-top ratio (R/T) have been grown up. Each parameters could be back to the common level after recovering 8 days; the accumulation of the dry material upside in F-044 were affected by chilling at 5 ℃ and the R/T grown 14.97 %, but it fell about 27.74 % in Wanhong NO.3 because of the dry material underground has been reduced evidently; the changing and recovery in each parameters of F-044 are both better than Wanhong NO.3 apparently as well as the endurance on chilling under low light.


 

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