| 多效唑对高羊茅扩展性和根系特性的调控效应 |
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| 引用本文： | 白小明,相斐,罗仁峰,孙吉雄.多效唑对高羊茅扩展性和根系特性的调控效应[J].草业科学,2009,26(10):171-176. |
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| 作者姓名： | 白小明 相斐 罗仁峰 孙吉雄 |
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| 作者单位： | 1. 甘肃农业大学草业学院,甘肃,兰州,730070;草业生态系统教育部重点实验室,甘肃农业大学,甘肃,兰州,730070;中-美草地畜牧业可持续发展研究中心,甘肃,兰州,730070
2. 江苏省常熟市山水园林景观艺术有限公司,江苏,常熟,215500 |
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| 基金项目： | 甘肃省高等学校研究生导师科研计划课题"网草皮生产技术研究与应用推广" |
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| 摘 要： | 在盆栽条件下，研究了喷施多效唑对高羊茅Festuca arundinacea单株扩展性和根系生态特性的影响，结果表明：在1001 900 mg/L质量浓度范围内，多效唑能有效抑制高羊茅植株的生长速度、地上枝叶的水平扩展、地上植物量的积累和根系生长，提高根系的表面积、体积和根冠比，促进分蘖和地下植物量的积累，质量浓度越高，调控效应越明显。质量浓度大于1 000 mg/L时，对分蘖的影响趋缓；大于1 300 mg/L时，对地上最大扩展距离、覆盖面积和地上植物量的影响趋缓。质量浓度为1 300 mg/L时，地下植物量、根系体积最大，根冠比最高。
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| 关 键 词： | 多效唑 高羊茅 扩展性 根系特性 |
Regulation effects of PP333 on extension of tall fescue(Festuca arundinacea) |
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| BAI Xiao-ming,,XIANG Fei,LUO Ren-feng,SUN Ji-xiong,Ministry of Education,.Sino-U.S.Centers for Grazingl, Ecosystem Sustainability,.L,scape Art Co.,Ltd.,Changshu ,China.Regulation effects of PP333 on extension of tall fescue(Festuca arundinacea)[J].Pratacultural Science,2009,26(10):171-176. |
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| Authors: | BAI Xiao-ming XIANG Fei LUO Ren-feng SUN Ji-xiong Ministry of Education Sino-USCenters for Grazingl Ecosystem Sustainability L scape Art Co Ltd Changshu China |
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| Institution: | BAI Xiao-ming1,2,3,XIANG Fei1,LUO Ren-feng4,SUN Ji-xiong1,3(1.College of Pratacultural Science,Gansu Agricultural University,Lanzhou 730070,China,2.Key Laboratory of Grassl, Ecosystem(Gansu Agricultural University),Ministry of Education,3.Sino-U.S.Centers for Grazingl, Ecosystem Sustainability,4.L,scape Art Co.,Ltd.,Changshu 215500,China) |
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| Abstract: | Effects of PP333 on shoot extension and root feature of tall fescue(Festuca arundinacea Schreb.)were conducted under inside-door pot condition.The results showed that,while the concentration of PP333 was from 100 to 1 900 mg/L,it suppressed growing speed,shoot extension,accumulation of aboveground biomass and root growth,elevated root area,volume,root-shoot ratio,tillering and accumulation of underground biomass of tall fescue;and significant correlations existed among these indexes and PP333 concentration.... |
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| Keywords: | PP333 tall fescue extension root feature |
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