| 杉木根分解3个月后分解土化感物质生物评价 |
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| 引用本文： | 曹光球,邹娜,曾金株,胡宗庆,刘宝,林思祖. 杉木根分解3个月后分解土化感物质生物评价[J]. 福建林学院学报, 2007, 27(2): 105-108 |
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| 作者姓名： | 曹光球 邹娜 曾金株 胡宗庆 刘宝 林思祖 |
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| 作者单位： | 1. 福建农林大学林学院,福建,福州,350002
2. 福建林业职业技术学院,福建,南平,353000 |
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| 基金项目： | 福建省自然科学基金，福建省教育厅资助项目 |
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| 摘 要： | 采用丙酮、乙酸乙酯、蒸馏水(2∶2∶1)浸提杉木根分解3个月后分解土化感物质,应用杉木种子发芽试验进行生物检测。研究结果表明:同一氮素水平条件下,随着质量浓度降低,化感物质对杉木种子发芽抑制效应逐渐减弱;同一化感物质浓度不同氮素水平处理相比,氨态氮及硝态氮处理,化感物质对杉木种子发芽的抑制作用基本强于不加氮素处理;杉木根分解3个月后分解土极性化感物质对杉木种子发芽的抑制作用强于弱极性化感物质。
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| 关 键 词： | 杉木根 分解阶段 化感物质 生物检测 |
| 文章编号： | 1001-389X（2007）02-0105-04 |
| 收稿时间： | 2006-09-04 |
| 修稿时间： | 2006-11-18 |
Bioassays of allelochemicals from decomposited soil after Chinese fir roots were decomposited three monthes |
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| CAO Guang-qiu,ZOU Na,ZENG Jin-zhu,HU Zong-qing,LIU Bao,LIN Si-zu. Bioassays of allelochemicals from decomposited soil after Chinese fir roots were decomposited three monthes[J]. Journal of Fujian College of Forestry, 2007, 27(2): 105-108 |
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| Authors: | CAO Guang-qiu ZOU Na ZENG Jin-zhu HU Zong-qing LIU Bao LIN Si-zu |
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| Affiliation: | 1. College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; 2. Fujian Forestry Vocational and Technical College, Nanping, Fujian 353000, China |
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| Abstract: | Allelochemicals of decomposited soil were extracted by acetone,ethyl acetate and distilled water(2∶2∶1)after Chinese fir root were decomposited for three monthes,bioassays of Chinese fir seeds germination were conducted.The result showed that as far as the same nitrogen level and different concentrations were concerned,with the decrease of concentrations of allelochemicals,the inhibitory effects on germination of Chinese fir tended to be weak;under the conditions of same concentration and different nitrogen levels,treatments of ammonia nitrogen and nitrate nitrogen had more inhibitory effects than that of non-nitrogen treatment;and polar allelochemicals of decomposited soil had more inhibitory effects on germination of Chinese fir seed than that of litter-polar allelochemicals. |
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| Keywords: | Chinese fir root decomposited frage allelochemical bioassays |
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