不同年份30d短日照处理对地被菊开花的影响  

Studied the influence of 30d short-day treatment on flowering of Ground-cover Chrysanthemum between different years

作　　者：杨中义[1] 王晨[1] 李艳锋[1] 张春来[2] 吕晋慧[1] 

机构地区：[1]山西农业大学林学院,山西太谷030801 [2]山西农业大学农学院,山西太谷038301

出　　处：《山西农业大学学报（自然科学版）》2017年第6期419-424,共6页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：国家"十二五"科技支撑计划课题(2013BAD01B07);国家自然基金项目(30972021);山西农业大学青年学科带头人及学术骨干计划项目(XG201213)

摘　　要：[目的]揭示30d短日照处理调控菊花花期的机理。[方法]比较不同年份间30d短日照处理下地被菊花芽分化及开花进程的差异。[结果]2014年出现二次开花现象,第一次开花始花期比对照提前43d,2015年开花一次,花期与对照一致;株高和冠幅显著小于对照,不同年份间差异不显著,开花量2014年显著高于2015年;2014年df(第一次开花)可溶性蛋白含量在露色期、始花期、盛花期显著高于对照,2015年各开花阶段显著高于对照,不同年份间在现蕾期、始花期、盛花期和末花期差异显著;2014年可溶性糖含量在露色期、始花期显著低于对照,其中2014年df在现蕾期、盛花期显著高于对照,2015年在现蕾期、盛花期显著高于对照,露色期、末花期显著低于对照,不同年份间可溶性糖含量差异显著;花芽分化2014年较2015年提前6d启动分化,提前43d完成分化。[结论]短日照抑制植株株高、冠幅等营养生长,同时影响菊花花芽分化及开花进程。30d短日照是菊花花芽分化和开花的敏感时期,条件适宜时植株提前完成花芽分化并开花,不适宜时不能诱导花芽分化或出现成花逆转。[Objective] Reveal the mechanism of 30d short-day treatment to control the florescence of Chrysanthemum. [Method] The differences of 30d short-day treatment on flower bud differentiation and flowering of Chrysanthemum were compared between different years.[Results] There was a secondary flowering phenomenon in 2014, and the early flowering stage was earlier 43 d than control in first time flowering. Only flowering one in 2015, the flowering was same with control. Plant height and crown were significantly lower than control, but the differences were non-significant in different years. And the flowers amount of 2014 was significantly higher than 2015. The soluble protein contents of 30 df in 2014 were significantly higher than control in visible flower color stage, early flowering stage and full bloom flowing stage; the contents of all flowering stages were significantly higher than control in 2015; the contents were significantly difference in visible flower bud stage, early flowering stage, full bloom flowing stage and later flowering stage between different years. The soluble sugar contents of 2014 were significantly lower than control in visible flower color stage and early flowering stage, and them of 30 df were significantly higher than control in visible flower bud stage and full bloom flowing stage; the contents of 2015 were significantly higher than control in visible flower bud stage and full bloom flowing stage, and lower than control in visible flower color stage and later flowering stage; the soluble sugar contents were significantly difference in different years. Flower bud differentiation started in 2014 earlier 6d than 2015, and earlier 43 d completed flower bud differentiation. [Conclusion] Short-day treatment inhibits the development in plant height and crown, and influences the flower bud differentiation and flowering of Chrysanthemum.30 d short-day is the sensitive period to flower bud differentiation and flowering of Chrysanthemum. When plants grow in a suitable condition, they will complete ad

关 键 词：短日照处理 花芽分化 可溶性蛋白 可溶性糖 

分 类 号：S688.4[农业科学—观赏园艺]