南京林业大学学报（自然科学版）2011，Vol.35Issue(5)：5-10,6.DOI:10.3969/j.issn.1000-2006.2011.05.002
模拟酸雨胁迫对4种草坪草种子萌发的影响
Effect of simulated acid rain stress on germination of four turf grass seeds
摘要
Abstract
The seeds of Lolium perenne, Festuca arundinacea, Agrostis palustris and Cynodon dactylon were treated with simulated acid rain at pH 2.0,2.5,3.0,3.5,4. 0,5.0 and 7. 0(as control) to study the effects of acid rain on their germination. The results showed that the seeds germination of four turf grass under acid rain stress were affected at different levels. Acid rain intensity pH 2.0 completely inhibited the seed germination of turf grass, showing no germination was observed and germination energy and vigor index was 0.0. The seeds of L. Perenne and F. Arundinacea could germinate normally under acid rain stress (pH^2. 5) ,and the seeds of A. Paluslris could germinate normally under acid rain stress (pH^3.0).The seeds of C. Dactylon germinated poorly under acid rain stress. In addition, the process of germination became slow under acid rain stress. The comprehensive evaluation results derived from principal components analysis and subordinate function analysis showed the order (from strong to weak) of anti-acid rain ability of the 4 turf grass seeds was F. Arundinacea > L perenne > A. Palustris > C. Dactylon.关键词
模拟酸雨/草坪草/种子萌发/隶属函数分析/主成分分析Key words
simulated acid rain/ turf grass/ seed germination/ subordinate function analysis/ principal components a-nalysis分类
农业科技引用本文复制引用
田如男,张培东,程澄..模拟酸雨胁迫对4种草坪草种子萌发的影响[J].南京林业大学学报（自然科学版）,2011,35(5):5-10,6.基金项目
国家自然科学基金项目(30972408) （30972408）
