牡丹品种朱砂垒(Paeonia suf fruticosa Andr. cv .Zhushalei)在冬季室内催花过程中 7 种内源激素含量变化不同。 玉米素核苷(Z+ZR)、生长素(IAA)和赤霉素(GA 3)的含量在花生长发育过程中处于较高水平;而脱落酸(A BA)、异戊烯基腺苷(I P+IPA)、二氢玉米素核苷(DHZ +DHZR)、赤霉素(GA4)的含量低于上述 3 种内源激素。 激素平衡方面, GAs/ ABA 、CT Ks/ ABA 、IAA/A BA 处于较高水平, 变化幅度较大。 在催花过程中, 内源激素以及其平衡影响牡丹花的生长发育。 本研究结果对牡丹花期调控提供理论依据。
 

Changes of seven endogenous phytohormones (ABA , cy tokinins , gibberellins and indole-3-acetic acid)w ere analy zed using the ELISA (Enzyme-linked Im munosorbent) in the course of forcing peony cultivar. Paeonia suffruticosa Andr. cv. Zhushalei was studied .The results showed that the contents of Z +ZR , IAA and GA3 were higher than other four hormones in the course of flow er development .Ratio of different hormones w as analyzed ;GAs/ABA , CTKs/ABA and IAA/ABA were larger than CTKs/GAs , C TK/IAA and GAs/ IAA .The endogenous ho rmones and its balance were closely related w ith peony flower development in the course.The results will provide scientific bases for controlling peony blooming duration .