摘要
为给激素调控板栗二次结实技术奠定基础,以具有二次结实性板栗品种"遵玉"为试验材料,采用高效液相色谱法(HPLC)测定其二次花芽分化过程中内源激素含量,研究其二次花芽分化与激素含量的关系。研究结果表明,在二次花芽分化整个过程中,花芽中的玉米素(ZT)和脱落酸(ABA)含量是显著升高的,赤霉素(GA_3)和生长素(IAA)含量是显著降低的,说明高水平的ZT和ABA以及低水平的GA_3和IAA有利于花芽的分化。从激素间的平衡关系看,ZT/GA_3、ZT/IAA、ABA/GA_3和ABA/IAA的高比值有利于板栗花芽的分化。
In order to lay a foundation for regulation techniques of secondary bearing in C. mollissirna B1. by hormones, taking Zunyu with secondary bearing characteristic as materials, contents of endogenous hormones were determined during secondary flower bud differentiation by high performance liquid chromatography, relationship between secondary flower bud differentiation and hormone contents were studied. The results indicated that during the process of flower bud differentiation, the contents of ZT and ABA were increased significantly, but the contents of GA3 and IAA were decreased significantly. A conclusion that high level of ZT and ABA or low level of GA3 and IAA benefited flower bud differentiation could be drawn. Higher ratios of ZT to GA3, ZT to IAA, ABA to GA3 and ABA to IAA benefited flower bud differentiation in C. rnollissirna B1. for the balance relationship among the hormones.
出处
《经济林研究》
2009年第4期31-35,共5页
Non-wood Forest Research
基金
国家十五攻关课题"核桃和板栗丰产栽培技术研究与示范"(2004BA515B06)
关键词
板栗
二次花芽分化
高效液相色谱
内源激素
含量
Castanea mollissima BL.
secondary flower bud differentiation
high performance liquid chromatography
endogenous hormones
content
