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Results show stigmatic pollen load of pollinated flower is significantly higher than ovule number/ovary for all the studied plants; pollen grains deposited on stigma are enough to fertilize all of the ovules. Results also seed abortion is common.

虽然花部隔离是不完全和不彻底的,但在维持马先蒿属植物间的生殖隔离和种间特征,尤其是避免普通传粉者所造成的花粉干扰是十分重要的。

In addition, they have relatively longer flower tubes, higher stigmatic pollen loads, bigger pollen size and a shorter blooming period for individual flowers. Finally, the author discusses the evolutionary significance of floral design in genus Pedicularis.

如我们发现,由柱头特征不同导致传粉效率的差异,这种传粉效率与马先蒿属植物的花冠管成正比,与单花开放时间成反比,与花粉大小成正比,本文还着重讨论了这些相关性的适应性意义。

On the origin and evolution of the genus Pedicularis L. in Xizang.

标题 西藏的马先蒿属植物及其起源与演化的探讨。

On the origin and evolution of the genus Pedicularis L. in Xizang.

西藏的马先蒿属植物及其起源与演化的探讨。

A study of Pedicularis in Shaanxi, Gansu and Ningxia.

标题 陕西、甘肃和宁夏马先蒿属的研究。

Even though floral isolation is incomplete, it is considered as an important mechanism to maintain species boundaries in Pedicularis.

本研究中我们着重指出了马先蒿属喙部结构多样性的变化在该属植物间形成花部隔离的重要性。

A study of Pedicularis in Shaanxi, Gansu and Ningxia.

Title 陕西、甘肃和宁夏马先蒿属的研究。

Any of numerous plants of the genus Pedicularis, having clusters of irregular, variously colored flowers.

罗丝草一种马先蒿属植物,有一簇簇不规则,不同颜色的花

Palynological study of Pedicularis and its relation with the taxonomic systems of the genus.

马先蒿属的花粉形态和其分类系统。

Pedicularis is a young group, and displays rapid floral variation from a narrow genetic basis.

马先蒿属是一个年轻的类群,其花部特征在狭窄的遗传基础上表现出了极大的变异,处在剧烈分化时期。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。