短命植物异果芥的生殖分配及结实特性

通过对短命植物异果芥的三种春萌植株的生殖分配和结实特性的研究,对其在新疆准噶尔荒漠中独特的适应对策一果实多态性进行了探讨.结果表明:三种植株的生殖分配高达65％以上,远高于大多数一年生植物.紫红色花植株上、下部果实萌生植株之间的单株生物量存在极显著差异,但生殖分配差异不显著；三种植株的结实率均在80％以上；三种植株单株...

The Characteristics of Fruit-set and Reproductive Package in Diptychocarpus stricus

In this paper the characteristics of reproductive allocation and fruit-set of Diptychocarpus stricus,were compared and analyzed,the fruit polymorphism of the adaptation strategies in Junggar desert was also explored.The results were as follows: The reproductive allocation(RA) in three morphs plant are more than 65%,much more higher than most of those of annual plants.There are significant differences in the biomass per individual between plants geminated by upper and lower fruit with purple-flowered morphs on the spring germinated plants in Diptychocarpus stricus,but there are no significant differences amongst the reproductive allocation;The fruit-set ratios are more than 80%.Meanwhile,there are significant differences in the upper fruits yield,the lower fruits yield and total fruit yield amongst the three morphs plants.There is significant positive correlation between the biomass per individual and the fruits yield.