| 石蝉草乙醇提取物除草活性初探 |
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| 引用本文： | 闫超,陈敏,周颖,刘霞,叶火春,张静,冯岗.石蝉草乙醇提取物除草活性初探[J].植物保护,2018,44(2):199-203. |
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| 作者姓名： | 闫超 陈敏 周颖 刘霞 叶火春 张静 冯岗 |
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| 作者单位： | 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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| 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) |
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| 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0.80mg/mL,对茎长的IC50分别为0.77和0.89mg/mL;盆栽试验表明,5mg/mL浓度对稗草和苘麻7d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。
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| 关 键 词： | 石蝉草 乙醇提取物 除草活性 |
| 收稿时间： | 2017/7/27 0:00:00 |
| 修稿时间： | 2017/9/25 0:00:00 |
Herbicidal activity of the ethanol extracts from Peperomia dindygulensis |
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| YAN Chao,CHEN Min,ZHOU Ying,LIU Xi,YE Huochun,ZHANG Jing,FENG Gang.Herbicidal activity of the ethanol extracts from Peperomia dindygulensis[J].Plant Protection,2018,44(2):199-203. |
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| Authors: | YAN Chao CHEN Min ZHOU Ying LIU Xi YE Huochun ZHANG Jing FENG Gang |
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| Institution: | 1. Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China; 2. Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Haikou 570100, China; 3. Institute of Tropical Agriculture and Forestry, Hainan University, Haikou570100, China; 4. Heilongjiang Bayi Agricultural University, Daqing 163319, China |
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| Abstract: | 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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| Keywords: | Peperomia dindygulensis ethanol extracts herbicidal activity |
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