草业科学2012，Vol.29Issue(6)：978-982,5.
松嫩平原星星草果后营养期无性系结构及其生长分析
Structures and growth analysis of Puccinellia tenuiflora clone at the vegetative stage after fruiting in the Songnen Plains of China
摘要
Abstract
Using a random sampling method, an entire tiller tuft was dug out of the soil at the vegetative stage after fruiting in a single dominant community, and the module structures and growth pattern of Puc-cinellia tenuiflora clones were quantitatively analyzed in the natural meadow in the Songnen Plains of Chi-na. The results showed that the total number of modules was 49.07±29.74, in which the jointing tillers was 53.3% and young tillers was 46.7%. The total biomass of clone was 2.54±1. 57 g, in which the jointing and the young tillers were 90.7% and 9.3%, respectively. With increase of tuft diameters, the number of jointing tillers and young tillers, the biomass of jointing tiller were all in a linear increase, while the total number of modules and the total biomass of clone were both increased by power function; and the hiomass of young tiilers was in a logarithmic function increase. In addition, the biomass of jointing tillers had a linear relationship with the number of jointing tillers, so was the total biomass of clone and the total number of modules. The relationship between the biomass and the number of young tillers was a power function. These correlation coefficients were all very significant （P〈0.01） each other.关键词
星星草/分蘖株/分蘖苗/无性系构件/生长分析Key words
Puccinellia tenuiflora/jointing tillers/young tillers/clone module/growth analysis分类
农业科技引用本文复制引用
张春艳,张春雨,陈玉交,李海燕,杨允菲..松嫩平原星星草果后营养期无性系结构及其生长分析[J].草业科学,2012,29(6):978-982,5.基金项目
国家自然科学基金项目 （）
