外源ABA对番茄苗期和开花期抗冷特性的影响  

EFFECT OF EXOGENOUS ABA ON CHILLING-RESISTANCE DURING SEEDLING AND FLORESCENCE IN TOMATO

作　　者：郭凤领[1] 卢育华[1] 李宝光[1] 

机构地区：[1]山东农业大学园艺系,山东泰安271018

出　　处：《山东农业大学学报（自然科学版）》2000年第4期357-362,共6页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：国家自然科学基金资助项目

摘　　要：采用不同浓度的ABA处理低温胁迫下番茄幼苗期和开花期的植株 ,测定低温胁迫下的各项生理生化指标。结果表明 15 0 μg·g-1ABA处理 ,幼苗期植株叶绿素含量增加 36 5 % ,开花期增加 2 1 6 % ;SOD、POD酶活性幼苗期分别增加 2 7 3 %、 2 4 3% ;开花期分别增加 30 9%、 13 5 % ;可溶性糖含量幼苗期增加 93 6 % ,开花期增加 5 1 7% ;Pro含量幼苗期增加 16 2 5 % ;开花期增加 2 7 3 %。植株的抗冷性提高 ,综合评价效果好 ;5 0～ 10 0 μg·g-1处理对番茄抗冷性有一定的作用 ;另外 ,外源ABA处理在品种上有差异 。The results of spray application of 50,100,150 μg·g -1 with different concentrations of ABA to tomato seedings and florescences under low temperature stress showed that 150μg·g -1 of ABA not only raised the content of chlorophyll by an average of 365%,216% during seedling and flowering phase,but also increased the activity of SOD,POD by average of 273%,243% during seedling phase,309%,135% during flowering phase,respectivelyt the same time,the contents of the soluble sugar and Pro also were raisedThe treated tomato exhibited high chilling-resistance with better comprehensive appreciationThe 50～100μg·g-1 ABA of comprehensive appreciation had a certain effect on raising the chilling-resistance in tomatoIn addition,the effect of exogenous ABA on varieties with high chill-resistance were apparent

关 键 词：开花期 幼苗期 外源ABA 抗冷性 植株 番茄苗 低温胁迫 增加 处理 影响 

分 类 号：S436.412.1[农业科学—农业昆虫与害虫防治] S511[农业科学—植物保护]