| 多花黑麦草根系抑草潜力评价及其化感物质分析 |
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| 引用本文： | 董晓宁,高承芳,张晓佩,刘远,李文杨,翁伯琦.多花黑麦草根系抑草潜力评价及其化感物质分析[J].草业学报,2013,22(4):61-68. |
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| 作者姓名： | 董晓宁 高承芳 张晓佩 刘远 李文杨 翁伯琦 |
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| 作者单位： | 1.福建省农业科学院畜牧兽医研究所,福建 福州 350013;2.福建省农业科学院农业生态研究所,福建 福州 350013 |
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| 基金项目： | 福建省科技计划重大专项，福建省农业科学院青年人才创新基金 |
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| 摘 要： | 以我国南方种植较普遍的多花黑麦草‘美克斯’和‘海克里斯’为供体试验材料,以杂草猪殃殃为受体材料,探讨多花黑麦草根系浸提液的化感潜力及分析主要化感物质成分(GC-MS鉴定)。结果表明,2个多花黑麦草根系浸提液对猪殃殃具有化感抑制作用,对种子发芽率大小的影响与质量分数呈负相关,随着质量分数的增加,抑制作用加强;美克斯对猪殃殃种子发芽率的抑制作用要强于海克里斯,美克斯对受体种子发芽抑制率为-0.55,海克里斯的为-0.51;2个多花黑麦草根系浸提液对猪殃殃幼苗生长也存在明显的抑制作用,表现为随着质量分数的增加抑制作用加强,在10.0%时的综合抑制率最高,其次为7.5%,再次为5.0%;相同质量分数下不同品种间以美克斯的抑制作用要强于海克里斯;美克斯根系浸提液中的化感物质包括12类,与抑制作用相关的酚酸类物质占主要成分,包括苯酚类和酸类物质。海克里斯根系分泌的化感物质中,脂肪族化合物占主要成分,包括草酸、甲醇、乙醇和丁醇类。
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| 关 键 词： | 多花黑麦草 化感作用 猪殃殃 化感物质 |
Analysis of allelochemicals and allelopathic effects of Lolium multiflorum roots on weeds |
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| DONG Xiao-ning
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GAO Cheng-fang
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ZHANG Xiao-pei
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LIU Yuan
,
LI Wen-yang
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WENG Bo-qi.Analysis of allelochemicals and allelopathic effects of Lolium multiflorum roots on weeds[J].Acta Prataculturae Sinica,2013,22(4):61-68. |
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| Authors: | DONG Xiao-ning GAO Cheng-fang ZHANG Xiao-pei LIU Yuan LI Wen-yang WENG Bo-qi |
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| Institution: | 1.Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; 2.Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China |
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| Abstract: | Allopathic plants release material into the soil that inhibit growth of neighbouring plants, and could affect seedling germination and growth of weeds. Many legume forages have been identified as allelopathic and inhibit the growth of accompanying plants. Lolium multiflorum has been planted widely in southern China. To study the effects on weeds, two varieties, ‘Maximus’ and ‘Hercules’ of L. multiflorum were used as donor materials. Galium aparine which was widely sown in the south of China was used as receptor material. In research on allelopathy that made full use of L. multiflorum’s allelopathy for control of weed growth, G. aparine had a very large significance. Inhibition of root extracts of L. multiflorum on G. aparine seeding germination showed a positive relation with increasing concentration, strengthening the inhibition. The inhibition of seed germination of ‘Maximus’ (-0.55) was stronger than that of ‘Hercules’ (-0.51). Inhibition of root extracts of L. multiflorum on G. aparine seedling growth had a positive relation, with an increase of concentration, strengthening inhibition (5.0%<7.5%<10.0%). The inhibition of ‘Maximus’ was stronger than that of ‘Hercules’ at the same concentration. The root extracts of ‘Maxiumus’ allelochemicals included 12 types of materials of which the main ones were acids and phenol. The root extracts of ‘Hercules’ allelochemicals included oxalic acid, methanol ethanol and butanol while the main component related to inhibition was an aliphatic compound. |
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| Keywords: | Lolium multiflorum allelopathy Galium aparine allelochemicals |
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