黑河中游花棒的开花特性与繁育系统研究

摘要/Abstract

摘要： 2009年5—10月在黑河流域中游定位观测了花棒的开花特性，运用人工授粉和套袋试验等方法测定了花棒的繁育系统。结果表明,花棒单朵花的花期为2～5 d。花粉属“非淀粉型”，寿命4～8 h。访花者有10余种，以膜翅目昆虫为主。授粉实验结果显示其不存在无融合生殖，自交亲和，自然条件下，虫媒在传粉过程中起决定性的作用，表明花棒的繁育系统为混合交配系统。

关键词: 花棒, 开花特性, 访花者, 传粉者, 繁育系统

Abstract: The flowering characteristics of Hedysarum scoparium were investigated and the breeding system was characterized by the outcome of bag test and artificial pollination experiment in the study area of the middle reaches of Heihe river from May to October in 2009. The main results were as follows: The life span of a single flower of H. scoparium was 2~5 d. The pollen was starchless and its viability was 4~8 h. More than 10 species of flower were observed in florescence of H. scoparium. The most common flower visitors belonged to Hymenopter. The results of artificial pollination experiments showed that the cross-pollination of H.scoparium was fertile. The self-compatibility existed and there was no apomixes. Entomoplily played a decisive role in the process of pollination. Thus, H.scoparium appeared to have a mixed-mating system.

Key words: Hedysarum scoparium, flowering characteristics, flower visitors, pollinators, breeding system

中图分类号:

Q945.64

潘成臣;刘林德*;侯月利;张莉;王艳杰;王艳华;王丽娟;赵雪. 黑河中游花棒的开花特性与繁育系统研究[J]. 中国沙漠, 2010, 30(5): 1099-1103.

PAN Cheng-chen;LIU Lin-de;HOU Yue-li;ZHANG Li;WANG Yan-jie;WANG Yan-hua;WANG Li-juan;ZHAO Xue. Flowering Characteristics and Breeding System of Hedysarum Scoparium in the Middle Reaches of Heihe River[J]. JOURNAL OF DESERT RESEARCH, 2010, 30(5): 1099-1103.

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