| 高汝勇，时丽冉，郭晓丽.圆叶牵牛对小麦种子的化感作用研究[J].麦类作物学报,2010,30(6):1132 |
| 圆叶牵牛对小麦种子的化感作用研究 |
| Study on Allelopathic Effects of Ipomoea Purpurea on Wheat Seeds |
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| DOI：10.7606/j.issn.1009-1041.2010.06.028 |
| 中文关键词: 小麦 圆叶牵牛 化感作用 种子萌发 幼苗生长 |
| 英文关键词:Wheat Ipomoea purpurea Allelopathy Seed germination Seedling growth |
| 基金项目:衡水学院大学生科技创新课题（046）。 |
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| 摘要点击次数: 1661 |
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| 中文摘要: |
| 为了给入侵杂草圆叶牵牛的综合治理提供参考依据，采用生物测定法研究了圆叶牵牛水浸提液对三个小麦品种种子萌发和幼苗生长的影响。结果表明，圆叶牵牛内存在化感物质，浸提液处理降低了三个供试小麦品种的发芽率、根长、苗高、活力指数，抑制作用随浓度的升高而增强。小麦幼苗生长对浸提液反应更为敏感，浸提液对幼苗生长的抑制作用大于对种子萌发的抑制作用。相同浓度的浸提液对三个小麦品种的影响程度存在差异，石麦18抗性较强。 |
| 英文摘要: |
| In order to control Ipomoea Purpurea,by means of laboratory bioassay, the allelopathy effect of the water extract from invasive plant Ipomoea purpurea on seed germination and seedling growth was investigated using three wheat varieties. The results showed that there was allelopathic material in Ipomoea purpurea. The water extract inhibited the germination percentage, root length, shoot height and vigor index.The inhibition effects was enhanced with the increasing of the concentrations of water extract. Seedling growth was most sensitive to the water extract, water extract exhibited more inhibition on seedling growth than on seed germination. Water extract of the same concentration had different effects for different wheat varieties, Shimai 18 showed relatively stronger resistance. |
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