2种光周期条件下‘日光’翠菊的生长发育特性  

Characteristics of growth and development of Callistephus chinensis‘Day Light'under two kinds of photoperiod

作　　者：张春燕[1] 马芳芳[1] 王琴[1] 胡惠蓉[1] 

机构地区：[1]华中农业大学园艺林学学院/园艺植物生物学教育部重点实验室,武汉430070

出　　处：《华中农业大学学报》2014年第1期35-38,共4页Journal of Huazhong Agricultural University

基　　金：中央高校基本科研业务费专项(2013PY085);国家自然科学基金项目(30972020)

摘　　要：将切花‘日光’翠菊分别培养在长日照和短日照条件下,观测其株高、株幅、分枝数、真叶数及始花期的变化,结果表明:与短日照相比,长日照下‘日光’的真叶数没有明显差异,表现为植株较高、株幅较小、分枝较少,适合切花栽培;‘日光’的开花在短日照下得到促进,为量性短日照植物。建议在‘日光’翠菊植株生长前期提供长日照条件,以获得较高的适于切花的株型;而后转为短日照条件,以加速开花。The first flowering time, changes of plant height, crown diameter, leaf number and branch number of cut flower,Callistephus chinensis ＇Day Light＇ ,were recorded by separately cultivating it un- der long days and short days. Results showed that no leaf number difference was found between ＇Day Light＇ grown under long days and short days. It tends to have an upright habit with increase in height but decreases in crown diameter and branch number under long days suitable for cut flowers; Flowering of ＇Day Light＇ was promoted by short days and was a quantitative short day plant. It was suggested that ＇Day Light＇ be cultivated under long days at vegetative stage to develop the high plant type for cut flow ers,and then under short days to flower fast.

关 键 词：翠菊 光周期 开花 株型 

分 类 号：Q945.32[生物学—植物学]