| 闫超 1, 2, 陈敏 3, 周颖 4, 刘霞 1, 2, 叶火春 1, 2, 张静 1, 2, 冯岗 1, 2*.石蝉草乙醇提取物除草活性初探[J].植物保护,2018,44(2):199-203. |
| 石蝉草乙醇提取物除草活性初探 |
| Herbicidal activity of the ethanol extracts from Peperomia dindygulensis |
| 投稿时间：2017-07-27 修订日期：2017-09-25 |
| DOI：10.16688/j.zwbh.2017275 |
| 中文关键词: 石蝉草 乙醇提取物 除草活性 |
| 英文关键词:Peperomia dindygulensis ethanol extracts herbicidal activity |
| 基金项目:国家重点研发计划(SQ2017ZY060121); 中央级公益性科研院所基本科研业务费(2013hzs1J002); 海南省重点研发项目(SQ2017SHFZ0023) |
| 作者 | 单位 | | 闫超 1, 2, 陈敏 3, 周颖 4, 刘霞 1, 2, 叶火春 1, 2, 张静 1, 2, 冯岗 1, 2* | 1. 中国热带农业科学院环境与植物保护研究所, 海口570100
2. 农业部热带作物有害生物综合治理重点实验室, 海口570100
3. 海南大学热带农林学院, 海口570100
4. 黑龙江八一农垦大学, 大庆163319 |
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| 中文摘要: |
| 为探明石蝉草是否具有除草活性, 本研究采用小杯法和盆栽试验法测定石蝉草乙醇提取物对13种植物的除草活性。结果表明, 石蝉草乙醇提取物对13种植物的根茎生长均有抑制作用, 对苘麻和稗草根长的抑制中浓度IC50分别为0.73和0.80 mg/mL, 对茎长的IC50分别为0.77和0.89 mg/mL; 盆栽试验表明, 5 mg/mL浓度对稗草和苘麻7 d的防治效果分别为90.73%和82.02%, 与对照药剂癸酸无显著性差异。研究结果为研发新型除草剂提供了新思路。 |
| 英文摘要: |
| The herbicidal activities of the ethanol extracts from Peperomia dindygulensis were evaluated on 13 species of weed plants. The results showed that the extracts had a strong inhibition effect to the roots and the stems of all the plants. The IC50 values of ethanol extracts on roots length were 0.73 and 0.80 mg/mL against Abutilon theophrasti and Echinochloa crusgalli, and the IC50 values on stems length were 0.77 and 0.89 mg/mL, respectively. Pot experiments indicated that the inhibition rates were 82.02% and 90.73%, respectively, after 7 days at a concentration of 5 mg/mL against A.theophrasti and E.crusgalli, which has no significant difference with the control herbicide decanoic acid. The results provide a new way for further research on the development of new herbicides. |
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