杂交狼尾草与豚草的竞争效应
豚草fAmbrosia artemisiifolia L.）是我国危害最严重的入侵杂草之一，目前已经在华南地区大面积分布。为了在华南地区寻找豚草的替代植物，本研究在不同种植密度和种植比例条件下进行了杂交狼尾草与豚草的竞争试验。结果表明，在所设置的75.47株／m^2（4株／盆）、150.94株／m^2（8株／盆）、226.41株／m^2（12株／盆）3个密度下，混种时豚草的高度和生物量显著降低。当种植密度为150.94株／m^2时，混种豚草的株高降低最大可达49.20％；当种植密度为226.41株／m^2时，混种豚草生物量降低最大可达66.89％；不同密度下，杂交狼尾草的相对生物量均显著大于1...
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| Published in | 广东农业科学 Vol. 40; no. 8; pp. 83 - 86 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广东省农科院植物保护研究所/广东省植物保护新技术重点实验室,广东广州,510640
2013
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1004-874X |
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| Abstract | 豚草fAmbrosia artemisiifolia L.）是我国危害最严重的入侵杂草之一，目前已经在华南地区大面积分布。为了在华南地区寻找豚草的替代植物，本研究在不同种植密度和种植比例条件下进行了杂交狼尾草与豚草的竞争试验。结果表明，在所设置的75.47株／m^2（4株／盆）、150.94株／m^2（8株／盆）、226.41株／m^2（12株／盆）3个密度下，混种时豚草的高度和生物量显著降低。当种植密度为150.94株／m^2时，混种豚草的株高降低最大可达49.20％；当种植密度为226.41株／m^2时，混种豚草生物量降低最大可达66.89％；不同密度下，杂交狼尾草的相对生物量均显著大于1，而豚草的相对生物量均显著小于1。在3个密度下，杂交狼尾草的竞争平衡指数均显著大于0，且随着密度的增加而增强，杂交狼尾草的竞争力大于豚草的竞争力。 |
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| AbstractList | S451; 豚草(Ambrosia artemisiifolia L.)是我国危害最严重的入侵杂草之一,目前已经在华南地区大面积分布.为了在华南地区寻找豚草的替代植物,本研究在不同种植密度和种植比例条件下进行了杂交狼尾草与豚草的竞争试验.结果表明,在所设置的75.47株/m2(4株/盆)、150.94 株/m2(8株/盆)、226.41株/m2 (12株/盆)3个密度下,混种时豚草的高度和生物量显著降低.当种植密度为150.94株/m2时,混种豚草的株高降低最大可达49.20％；当种植密度为226.41株/m2时,混种豚草生物量降低最大可达66.89％;不同密度下,杂交狼尾草的相对生物量均显著大于1,而豚草的相对生物量均显著小于1.在3个密度下,杂交狼尾草的竞争平衡指数均显著大于0,且随着密度的增加而增强,杂交狼尾草的竞争力大于豚草的竞争力. 豚草fAmbrosia artemisiifolia L.）是我国危害最严重的入侵杂草之一，目前已经在华南地区大面积分布。为了在华南地区寻找豚草的替代植物，本研究在不同种植密度和种植比例条件下进行了杂交狼尾草与豚草的竞争试验。结果表明，在所设置的75.47株／m^2（4株／盆）、150.94株／m^2（8株／盆）、226.41株／m^2（12株／盆）3个密度下，混种时豚草的高度和生物量显著降低。当种植密度为150.94株／m^2时，混种豚草的株高降低最大可达49.20％；当种植密度为226.41株／m^2时，混种豚草生物量降低最大可达66.89％；不同密度下，杂交狼尾草的相对生物量均显著大于1，而豚草的相对生物量均显著小于1。在3个密度下，杂交狼尾草的竞争平衡指数均显著大于0，且随着密度的增加而增强，杂交狼尾草的竞争力大于豚草的竞争力。 |
| Author | 岳茂峰 冯莉 田兴山 杨彩宏 |
| AuthorAffiliation | 广东省农科院植物保护研究所／广东省植物保护新技术重点实验室,广东广州510640 |
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| Author_FL | FENG Li TIAN Xing-shan YUE Mao-feng YANG Cai-hong |
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| Author_xml | – sequence: 1 fullname: 岳茂峰 冯莉 田兴山 杨彩宏 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DocumentTitleAlternate | Competitive effects between hybrid pennisetum and ragweed |
| DocumentTitle_FL | Competitive effects between hybrid pennisetum and ragweed |
| EndPage | 86 |
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| Issue | 8 |
| Keywords | 杂交狼尾草 植物竞争 豚草 |
| Language | Chinese |
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| Notes | 44-1267/S Pennisetum americanumxP, purpureum; A mbrosia artemisiifolia L.; plant competition YUE Mao-feng, FENG Li, TIAN Xing-shan, YANG Cai-hong （Institute of Plant Protection, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guang,.hou 510640, China） Ragweed （Ambrosia artemisiifolia L.） is one of the most serious invasion weeds in China and has spread into many places in South China at present. In order to search for a substitute plant of ragweed in South China, competition test between hybrid pennisetum （Pennisetum americanumxP, purpureum）and ragweed was conducted at different planting densities and planting proportions. The results showed that the height and biomass of ragweed in mixture decreased significantly at the densities of 75.47 plants/m^2 （4 plants/pot）,150.94 plants/m^2（8 plants/pot） ,226.41 plants/m^2 （12 plants/pot）. The height of ragweed decreased by 49.20% at the density of 150.94 plants/m^2. The biomass of ragweed decreased |
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| PublicationTitle | 广东农业科学 |
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| PublicationYear | 2013 |
| Publisher | 广东省农科院植物保护研究所/广东省植物保护新技术重点实验室,广东广州,510640 |
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| Snippet | 豚草fAmbrosia artemisiifolia L.）是我国危害最严重的入侵杂草之一，目前已经在华南地区大面积分布。为了在华南地区寻找豚草的替代植物，本研究在不同种植密度和种植比例... S451; 豚草(Ambrosia artemisiifolia L.)是我国危害最严重的入侵杂草之一,目前已经在华南地区大面积分布.为了在华南地区寻找豚草的替代植物,本研究在不同种植密度和种植比... |
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| SubjectTerms | 杂交狼尾草 植物竞争 豚草 |
| Title | 杂交狼尾草与豚草的竞争效应 |
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