不同贮藏温度对彩色马蹄莲块茎内源激素变化及萌芽与生长的影响  

Effects of Storage Temperature on Changes in Endogenous Hormones,Germination and Growth of Colorful Calla Lily Tubers

作　　者：周涤[1] 卫尊征[1] 王贤[1] 熊敏[1] 贾桂霞[2] 

机构地区：[1]北京市农林科学院蔬菜研究中心,北京100097 [2]北京林业大学园林学院,北京100083

出　　处：《植物生理学报》2011年第7期705-709,共5页Plant Physiology Journal

基　　金：北京市优秀人才项目(2009B002005000010);国家科技支撑计划项目(2009BADB8B04);北京市农林科学院科技创新能力建设专项(KJCX201101010-27)

摘　　要：以彩色马蹄莲(Zantedeschia hybrids)的‘BlackMagic’为试材,研究其块茎经不同贮藏温度和时间处理后,块茎内源激素的变化及对块茎萌芽的影响。结果表明:在不同温度条件下,随贮藏时间的延长,GA3和IAA含量水平均呈上升的趋势,并且贮藏温度越高,GA3含量水平越高。脱落酸ABA含量与GA3呈相反的变化趋势,相同贮藏天数均为15℃处理ABA含量水平最低,6℃处理ABA含量水平最高。随着贮藏时间延长,GA3/ABA、IAA/ABA质量分数比值越大。GA3/ABA、IAA/ABA质量分数比值与块茎萌芽率之间存在一定程度的对应关系。Abstract： The changes of endogenous hormones and germination were studied at different storage temperature and duration, using the tubers of Zantedeschia hybrids ＇Black Magic＇. The results indicated that contents of GA3 and IAA in tubers increased along with the extension of storage time during a period of 112 d, especially for the content of GA3 at the high storage temperature. A negative correlation was observed between GA3 and ABA content. At the same storage time, ABA content of tubers was the lowest in 15℃, while it was the highest in 6℃. The ratios of GA3 to ABA and IAA to ABA increased along with the extension of storage duration, which was related to the dormancy releasing progress.

关 键 词：贮藏温度 彩色马蹄莲 块茎 内源激素 萌芽 

分 类 号：S682.264[农业科学—观赏园艺]