铁皮石斛试管苗生长的适宜光照时间  

Suitable Lighting time for Growth of Dendrobium officinale Test-tube Plantlets

作　　者：龙祥友[1] 朱虹[1] 孙长生[1] 刘雪兰[1] 李利霞[1] 

机构地区：[1]贵阳药用植物园,贵州贵阳550002

出　　处：《贵州农业科学》2015年第4期173-175,共3页Guizhou Agricultural Sciences

基　　金：贵阳市科技计划项目"铁皮石斛种苗产业化生产关键技术研究及应用示范"[筑科合同(2012401)社-1]

摘　　要：为给铁皮石斛组培规模化生产中光照时间的控制提供理论依据,在人工密闭式植物工厂的可控环境条件下,研究不同光照时间对铁皮石斛增殖及生根阶段试管苗生长的影响。结果表明:铁皮石斛试管苗增殖阶段增殖系数、株高光照时间在10h/d到最大值,为适宜光照时间;在生根阶段苗高、叶片数、根长均在光照时间为12h/d培养条件下到最高,为铁皮石斛生根阶段适宜光照时间。The effects of different Lighting time on propagation and growth of D.officinale test-tube plantlets at rooting stage in an artificial closed plant factory under the controlled environment conditions to provide the theoretical basis for photoperiod control in large-scale production of D.officinale test-tube plantlets.The results showed that the propagation coefficient and height of D.officinale test-tube plantlets during the propagation period reaches the maximum under 10 h/d of Lighting time,but the height,leaf number and root length of D.officinale test-tube plantlets at rooting stage all are the maximum under 12 h/d of photoperiod.

关 键 词：光照时间 铁皮石斛 试管苗 生长 

分 类 号：S567[农业科学—中草药栽培]