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| 引种牧草柳枝稷对生菜化感作用初探 | |
| 引用本文： | 安 雨,税军峰,马永清.引种牧草柳枝稷对生菜化感作用初探[J].西北农业学报,2011,20(2):143-149. |
| 作者姓名： | 安 雨 税军峰 马永清 |
| 作者单位： | 1. 西北农林科技大学,资源环境学院,陕西杨凌,712100 2. 中国科学院水利部,水土保持研究所,陕西杨凌,712100 3. 西北农林科技大学,资源环境学院,陕西杨凌,712100;中国科学院水利部,水土保持研究所,陕西杨凌,712100 |
| 基金项目： | 国家“十一五”科技支撑计划资助项目(2006BAD09B08) |
| 摘 要： | 以4种高地品种柳枝稷(Panicum virgatumL.)Pathfinder、Forestberg、Nebraska 28、Dakota为研究材料,采用室内皿培的生物测试方法,利用甲醇和蒸馏水浸提柳枝稷根系和地上部,通过分析浸提液对受体生菜种子胚根、胚芽长及发芽率的影响来鉴定柳枝稷化感潜势。结果表明,4种供试柳枝稷中Nebraska 28对生菜化感最强,而Pathfinder化感作用最弱,Forestberg与Dakota差异不明显;Pathfinder与其他3种柳枝稷不同,根系化感作用强于地上部;浸提液经过稀释后其甲醇浸提液化感作用强于蒸馏水浸提液;高质量浓度浸提液对生菜胚根生长影响较大,而低质量浓度对胚芽的化感作用较大。 |
| 关 键 词： | 柳枝稷 牧草 化感作用 生菜 |
Preliminary Studies on Allelopathy of Introduced Forage Switchgrass (Panicum virgatum L.) to Lettuce (Lactuca sativa L.) |
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| AN Yu,SHUI Junfeng and MA Yongqing.Preliminary Studies on Allelopathy of Introduced Forage Switchgrass (Panicum virgatum L.) to Lettuce (Lactuca sativa L.)[J].Acta Agriculturae Boreali-occidentalis Sinica,2011,20(2):143-149. | |
| Authors: | AN Yu SHUI Junfeng and MA Yongqing |
| Institution: | AN Yu1,SHUI Junfeng2 and MA Yongqing1,2(1.College of Resources and Environment,Northwest A&F University,Yangling Shaanxi 712100,China,2.Institute of Soil and Water Conservation,Chinese Academy of Sciences,China) |
| Abstract: | The four upland varieties of switchgrass(Panicum virgatum L.) Pathfinder,Forestberg,Nebraska 28 and Dakota were investigated in the experiment.The allelopathic effects of extracts from switchgrass roots and aerial parts on lettuce seeds were investigated to give directions to introduced switchgrass and optimizing forages systems.The results indicated that Nebraska 28 had the strongest allelopathy while Pathfinder shown the weakest allelopathy.The allelopathy of Pathfinder root was higher than that of aerial... |
| Keywords: | Switchgrass Forage Allelopathy Lettuce |
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