• 研究报告 •
CHEN Min1,2**, ZHAO Xue-yong1
Abstract: Tamarix ramosissima is an ecologically important species of vegetation in the arid regions of Northwest China. In order to understand its pollination biology of different populations, we investigated the following characteristics of the species: flowering dynamics, pollen viability, stigma receptivity, floral visitors, fruit set and breeding systems. We found that the species was characterized by four important reproductive characteristics. Firstly, the flowering peak and flower production period were different between wild and managed populations, being longer in the managed. Secondly, in the wild populations, Apis mellifera was the frequent pollinator, and the P/O rate was 337.2. In the managed populations, Megachile (Amegachile) kagiana was the most effective flower visitor, and the P/O rate was 356.1. Thirdly, fruit set appeared to be higher in the managed populations than in the wild. Finally, outcrossing indexes of both populations were 3, and facultative outcrossing was dominant and selfpollination just played an assistant role in the breeding system of both populations.
landscape pattern and process,
control rate of total runoff,
陈敏1,2**,赵学勇1. 野生和人工种群多枝柽柳的传粉生物学比较[J]. 生态学杂志.
CHEN Min1,2**, ZHAO Xue-yong1. Comparative pollination biology of Tamarix ramosissima in wild and managed populations.[J]. cje.