千年桐种源叶片内源激素比较及其与碳氮关系  

Comparison of foliar endogenous hormones in different Aleurites montana provenances and their correlation with C and N contents

作　　者：林晗[1,2] 陈辉[1,2] 吴承祯[1,2] 谢安强[1,2] 陈灿[1,2] 李键[1,2] 林勇明[1,2] 

机构地区：[1]福建农林大学林学院,福建福州350002 [2]福建省高校森林生态系统过程与经营重点实验室,福建福州350002

出　　处：《福建林学院学报》2012年第2期102-106,共5页Journal of Fujian College of Forestry

基　　金：国家自然科学基金资助项目(30671664);福建省科技厅资助省属高校项目(2008F5014);福建省科技厅重点项目(2011N0002);福建省自然科学基金资助项目(2007J0323)

摘　　要：以11个不同种源千年桐叶片为试验材料,测定4种内源激素———赤酶素(GA)、玉米核苷(ZR)、吲哚乙酸(IAA)、脱落酸(ABA)的含量。结果表明:11个种源千年桐叶片的GA、IAA、ZR、ABA存在极显著差异,从变异系数的离散程度看,4种内源激素的差异程度为GA>ZR>IAA>ABA。IAA与ABA之间呈现出显著的相关关系(P<0.05),GA与IAA之间呈现出较明显的相关关系(P<0.1)。各种源内源激素平衡性具有一定差异,体现了不同种源适应能力的不同。在叶片C、N含量的相关性中,GA/ABA和GA与叶N含量呈一定程度的负相关,与C/N呈极显著正相关。The foliar endogenous hormones including GA, IAA, ZR and ABA from 11 Aleurites montana provenances are deter- mined. The results showed that among various provenances there was extremely significant difference in GA, IAA, ZR and ABA and GA 〉 ZR 〉 IAA 〉 ABA in terms of discrete values of variation coefficients. There was significant correlation between IAA and ABA （P 〈 0.05） and correlation between GA and IAA （P 〈 0.1 ）. The difference in the ratio of various endogenous hormones revealed the differentiation in adaptability among provenances. In the relationship with foliar C and N contents, GA/ABA and GA had nega- tive correlation with foliar N content and extremely significant positive correlation with C/N.

关 键 词：千年桐 种源 内源激素 叶N含量 C/N 

分 类 号：S792.23[农业科学—林木遗传育种]