不同光照条件下东方百合生长状态及生物量的分配  

The growing status and biomass partition of oriental lilies under different light intensity

作　　者：王祥宁[1] 熊丽[1] 陈敏[1] 杨永福 余明荣 

机构地区：[1]云南省农业科学院花卉研究所,云南昆明650205 [2]丽江市永胜县园艺站,云南永胜674200

出　　处：《西南农业学报》2007年第5期1091-1096,共6页Southwest China Journal of Agricultural Sciences

基　　金：云南省科技厅"十五"攻关项目(2003NG03)

摘　　要：在露地栽培（光照100%）、棚膜栽培（光照80%）、遮阳栽培（光照30%）3个光照处理下,对百合的生长状况及生物量分配进行测定,结果表明,光照强弱对百合形态特征的显著影响主要表现在株高、单叶面积、茎生根上,对单位叶面积（比叶重）也表现出极显著影响。随着遮阳环境的加剧,胁迫百合对各功能器官的生物量分配比例进行调整,相对提高了百合地上部分生物量的比例,同时也相对降低了地下部分生物量的比例,其突出表现在总叶干重和鳞茎干重上。但不同品种对光照的敏感程度不同,根据形态特征、生物量分配变化程度来看,提伯、索尔邦较为敏感,西伯利亚相较适应这种变化,但无论光照强弱,百合的生物量分配仍然主要集中于叶片上（占地上部分生物量的60%左右）和鳞茎上（占地下部分生物量的70%~90%）。The growing status and biomass partition of lilies under three cultivation conditions,namely,in open land with full sunlight,in plastic tunnels with 80 % of full sunlight and under shadecloth with 30 % of full sunlight,were measured,respectively.The results showed the following.Firstly,the morphological characters,such as the plant height,the single leaf area,roots originated from stems and the special leaf area etc.were significantly affected by light intensity.Secondly,with worse light intensity stressed,lilies adjusted its biomass partition among different organs by increasing the biomass of the overground part and decreasing that of the belowground part relatively,which could be seen clearly from the increase of total dry mass of leaves and the decrease of total dry bulb mass.Thirdly,the sensitivity of different cultivars to light intensity was different.For example,Lilium ＇Tiber＇ and Lilium ＇Sorborne＇ were much more sensitive in the sense of morphology and biomass partition,while Lilium ＇Siberia＇ was more stable.Fourthly,no matter what the light intensity could be,the biomass of the lilies was mainly constituted by that of leaves and that of bulbs,the former occupying 60 % of the total overground part and the latter occupying 70 %-90 % of the total belowground part.

关 键 词：东方百合 光照条件 形态特征 比叶重 生物量 

分 类 号：Q949.718.23[生物学—植物学]