摘要
用间接酶联免疫吸附法测定了不同季节不同种源长白落叶松激素含量。结果表明：不同季节长白落叶松的激素含量不同，速生期长白落叶松赤霉素、生长素和细胞分裂素含量高，脱落酸含量低，赤霉素／脱落酸比值大，生长缓慢期测定结果恰好相反。各类激素含量在不同种源长白落叶松间的变异显著，且与生长性状的差异密切相关。生长快的种源赤霉素，细胞分裂素含量高，脱落酸含量低，赤霉素／脱落酸之比大，生长慢的种源则相反。回归分析表明，赤霉素、细胞分裂素含量及赤霉素／脱落酸之比与不同种源长白落叶松的生长呈显著的正相关，脱落酸含量与生长呈显著的负相关。激素含量可以作为一个生理生化指标用于落叶松的早期选择。
Hormone content of L. olgensis of different provenances was measured with indirect ELISA in different season. Hormone content was different in different season. At fast growth stage, the content of gibberellic acid, cytokinin, and auxin was higher, abscisic acid content was lower, and gibberellic acid/abscisic acid ratio was bigger; while at slow growth stage, the condition was opposite. The diversity of hormone content of L. olgensis of different provenances was striking, and closely related to the diversity of growth properties. In provenances growing fast, content of gibberellic acid, cytokinin was higher, abscisic acid content was lower, and gibberellic acid/abscisic acid ratio was bigger; while in provenances growing slowly, the condition was opposite. Regressive analysis showed that content of gibberellic acid and cytokinin, gibberellic acid/abscisic acid ratio had remarkable positive correlation with growth of L. olgensis of different provenances; abscisic acid content had remarkable negative correlation with growth. Hormone content could be used as a physiology and biochemistry index in L. olgensis selection.
出处
《植物研究》
CAS
CSCD
北大核心
1998年第4期461-467,共7页
Bulletin of Botanical Research
基金
"八五"国家科技攻关项目
关键词
长白落叶松
种源
激素含量
早期选择
Larix olgensis Henry
Hormone content
Provenance
Early selection
