摘要
本文用实验生态学的方法,通过实验设计,对栽植在不同光照强度下的毛百合形态性状、繁殖对策进行了研究。结果澄明与野外调查的结果一致。以相对光照49.47％以上,直至100％处生长最好;11.75％相对光照强度处生长最差。25.47％处居中间。 毛百合在所设计的光照梯度上繁殖对策有所转变、在弱光下(相对光照11.75％)、其能量的79.12％分配到无性繁殖器官鳞茎,且不能完成有性繁殖。随光照强度增加、其能量分配逐渐转向有性繁殖器官。相对光强为25.47％时,有性繁殖器官获得的能量为无性繁殖器官的1/3。到49.47％以上,两种繁殖方式获得的能量趋于相近。
The morphological characteristics and reproductive strategies of L.dauricum planted in different light intensities was studied by experimentalecology method. The results showed that conclusions between both this experiment andthe field investigation are the same. The growth is the best under relativelight intensity from 49.47% to 100%, the werest is under 11.25%, and theintermediate is under 25.47%. The reproductive strategies change with the designed light gradient,under the weak light 79.12% energy is allocated to the vegetative propa-gatian organ-bulb, and the sexual reproduction could not succeed. But theenergy was transfermed to the sexual reproduction organ, with increaseof the light intensity. When the relative light intensity is 25.47%, alloca-ted energy to the sexual reproduction organ is 1/3 of vegetative propaga-tion organ. When the relative light intensity increase to 49.47%. theallocation to both reproduction organ tend to close to each other.
出处
《植物研究》
CAS
CSCD
北大核心
1993年第3期285-293,共9页
Bulletin of Botanical Research
基金
黑龙江省自然科学基金
关键词
毛百合
光梯度
繁殖
形态特征
Lilum dauricum
light gradient
morphological characteristics
reproduction
