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模拟酸雨胁迫对4种草坪草种子萌发的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2011年05期
Page:
5-10
Column:
研究论文
publishdate:
2011-09-30

Article Info:/Info

Title:
Effect of simulated acid rain stress on germination of four turf grass seeds
Author(s):
TIAN Runan1*
1.College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; 2.State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China; 3.Jiangsu Shi Hao Environmental Art Engineering Co,Ltd,Nanjing 210046, China
Keywords:
simulated acid rain turf grass seed germination subordinate function analysis principal components analysis
Classification number :
S6884;Q94579
DOI:
10.3969/j.jssn.1000-2006.2011.05.002
Document Code:
A
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.palustris 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.

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Last Update: 2011-09-30