| 空心莲子草浸提液对烟草种子萌发的化感作用研究 |
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| 引用本文： | 王飞,杜康兮,张俊,李立芹.空心莲子草浸提液对烟草种子萌发的化感作用研究[J].种子,2012,31(4):49-51,61. |
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| 作者姓名： | 王飞 杜康兮 张俊 李立芹 |
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| 作者单位： | 四川农业大学农学院,成都,611130 |
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| 摘 要： | 通过用空心莲子草根浸提液(4、0.8、0.4、0.08 g/L)处理烟草种子K326,并与蒸馏水对照相比,发现在4、0.8、0.08g/L 3个浓度的处理下烟草种子的萌发都得到了不同程度的促进,尤以0.08 g/L的促进效果最明显.用根状茎浸提液(4、0.8、0.4、0.08g/L)分别处理烟草种子K 326,与对照相比,4g/L浓度根状茎浸提液的处理对烟草种子的萌发表现出明显的抑制作用,廷缓了种子萌发达到最大值的时间,而其他3个浓度则表现出不同程度的促进.在4、0.08 g/L浓度根浸提液处理下,烟草种子的发芽率、发芽指数都显著高于对照.在0.08 ～4 g/L浓度范围内,促进效果:根浸提液＞根状茎浸提液.
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| 关 键 词： | 空心莲子草 烟草 萌发 化感作用 |
Research on Allelopathic Effects of Alternanthera philoxeroides Aqueous Extract on Seed Germination of Tobacco |
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| WANG Fei
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DU Kang-xi
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ZHANG Jun
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LI Li-qin.Research on Allelopathic Effects of Alternanthera philoxeroides Aqueous Extract on Seed Germination of Tobacco[J].Seed,2012,31(4):49-51,61. |
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| Authors: | WANG Fei DU Kang-xi ZHANG Jun LI Li-qin |
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| Institution: | (College of Agronomy,Sichuan Agricultural University,Chengdu Sichuan 611130,China) |
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| Abstract: | The experiment was performed to study the Allelopathic effect of different concentrations(0,4,0.8,0.4 and 0.08 g/L) of Ahernanthera philoxeroides aqueous extracts on tobacco K 326 seeds germination.The results showed that compared with the control,three concentrations(4 g/L,0.8 g/L,0.08 g/L) all could promoted germination rate of tobacco,especially the concentration of 0.08 g/L.The germination of tobacco seeds were inhibited with the concentration(4 g/L) of aqueous extract of root stock and were retarded the time of the maximum of germination rate,while was increased with the other three concentration treatment.In the range of 0.08 g/L to 4 g/L,the promotive effect of Ahernanthera philoxeroides aqueous extracts on seed germination of tobacco was:root>stem. |
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| Keywords: | Ahernanthera philoxeroides tobacco germination allelopathy |
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