三种针叶树种生长期内源激素动态变化的分析  

Dynamic Changes Analysis of Endogenous Hormones in Three Coniferous Tree Species During Growth Period

作　　者：庄倩倩[1] 陈少鹏[1] 刘颖[2] 吕伟伟[2] ZHUANG Qian-qian;CHEN Shao-peng;LIU Ying;LYU Wei-wei(Jilin Agricultural Science and Technology College,Jilin 132101,China;Jilin Academy of Forestry Sciences,Jilin 132013,China)

机构地区：[1]吉林农业科技学院,吉林吉林132101 [2]吉林市林业科学研究院,吉林吉林132013

出　　处：《黑龙江农业科学》2021年第1期107-111,共5页Heilongjiang Agricultural Sciences

基　　金：吉林农业科技学院青年基金项目(吉农院合字[2018]第3020号);吉林省科技厅重点科技研发项目(20180201006NY)。

摘　　要：为初步探寻东部白松的速生机制,分别选择一年生、三年生和五年生的东部白松、红松及长白落叶松为试验材料,于6月、7月和8月采集植株的新梢部位并进行吲哚乙酸(IAA)、玉米素(ZT)、赤霉素(GA)、脱落酸(ABA)、水杨酸(SA)含量的测定。结果表明:IAA、ZT和GA在3个树种的3个苗龄含量均低于0.001μg·g-1;ABA含量在3个树种中的含量排序为红松>东部白松>长白落叶松,红松年周期中表现为6月开始下降,7月最低,8月升高;东部白松和长白落叶松表现为6月最高,8月时降至最低;SA含量在3个树种中的含量排序为东部白松>长白落叶松>红松,同树种内表现为随苗龄增大,SA含量增加,在年生长周期中,从6月至8月逐渐升高。In order to explore the fast-growing mechanism of Pinus strobus,one year old,three-year-old and five-year-old of Pinus strobes,Pinus koraiensis and Larix olgensis were selected as experimental materials,the contents of indoleacetic acid(IAA),zeatin(ZT),gibberellin(GA),abscisic acid(ABA)and salicylic acid(SA)in new shoots of Pinus strobus,Pinus koraiensis and Larix olgensis were measured in June,July and August.The results showed that the contents of IAA,ZT and GA in three tree species were all lower than 0.001μg·g-1,and the order of ABA content in the three tree species was Pinus koraiensis>Pinus strobus>Larix olgensi,the annual cycle of Pinus koraiensis was decreasing in June,the lowest in July and increasing in August;the content of ABA in Pinus strobus and Larix olgensis was the highest in June,and decreased to the lowest in August;the content of SA in the three tree species was in the order of Pinus strobus>Larix olgensis>Pinus koraiensis,and increased with seedling age in the same tree species,and the content of SA increased from June to August.

关 键 词：东部白松 红松 长白落叶松 内源激素 

分 类 号：S71[农业科学—林学]