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摘要翻译：
本研究以阿尔及利亚撒哈拉北部的两种植物为材料，研究其叶提取物的杀虫除草效果。它们是Cleome arabica（Capparaceae）和Pergularia tomentosa（Asclepiadaceae）。采用回流提取法对植物提取物的功效进行了评价。植物化学筛选结果表明，与毛白杨提取物相比，阿拉比卡水提物的活性成分丰富；包括黄酮类、皂苷类、苷类、萜类、甾醇类、脱氧糖类、多酚类、总生物碱类。用80%至100%的阿拉比卡和毛白杨水提液处理的拟柔毛镰刀菌成虫，死亡率分别为73.33%~96.67%和36.67%~86.67%,对拟柔毛镰刀菌成虫的致死率分别为73.33%~96.67%,对拟柔毛镰刀菌成虫的致死率分别为36.67%~86.67%,对拟柔毛镰刀菌成虫的致死率也有一定的影响。经估算，阿拉比卡水提物的致死时间约为6.41天，毛白杨水提物的致死时间约为6.94天。毛白杨提取物比阿拉比卡提取物毒性小。通过对一种禾本科杂草Dactyloctenium aegyptium（禾本科）和两种栽培植物Hordeumvulgare和Triticumdurum（禾本科）种子发芽的化感作用研究表明，阿拉比卡和毛白杨提取物具有极显著的抑制作用。它主要表现在粗俗革兰氏菌和硬粒革兰氏菌的地上部分和地下部分的生长。不同浓度对埃及草种子的抑制率均在84.44%以上。在80%～100%的灌溉条件下，硬粒小麦的抑制率为75.56%～91.11%,而在相同浓度(80%～100%)下，大麦种子的抑制率仅为55.56%～77.78%。
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英文标题：
《Comparative study of the biological activities of the aqueous extracts
of two spontaneous plants harvested in the Algerian Sahara》
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作者：
Rekia Cherif
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最新提交年份：
2020
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分类信息：
一级分类：Quantitative Biology 数量生物学
二级分类：Other Quantitative Biology 其他定量生物学
分类描述：Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要：
The present study investigates the insecticidal and herbicidal effects of leaf extracts from two plants were harvested in the Northern Algerian Sahara. These are Cleome arabica (Capparaceae) and Pergularia tomentosa (Asclepiadaceae). The efficacy of the extracts from the plants was evaluated by the reflux extraction method. The phytochemical screening of the aqueous extracts of C. arabica shows a remarkable richness in active principles in comparison with the extract of P. tomentosa; including flavonoids, saponosides, glycosides, terpenes, sterols, deoxyose, polyphenols and total alkaloids. The imago of Tribolium confusum treated with aqueous extracts of C. arabica and P. tomentosa at doses of 80% to 100% respectively have mortality rates of 73.33% to 96.67%, and 36.67% to 86.67%. The lethal time 50 (TL50%) of the aqueous extract of C. arabica was estimated about 6.41 days, and 6.94 days for the extract P. tomentosa for the imago of T. confusum. The extracts of P. tomentosa is less toxic than the extracts of C. arabica. The allelopathic potentials of C. arabica and P. tomentosa tested on germination of the seeds of a weed Dactyloctenium aegyptium (Poaceae) and two cultivated species, including Hordeumvulgare and Triticumdurum (Poaceae), show that the inhibitory effect of extracts of C. arabica is very highly significant. It manifests itself in the growth of the aerial and underground part of the H. vulgar and T. durum. The inhibition rate is more than 84.44% for D. aegyptium seeds treated with the different concentrations. The inhibition rates range from 75.56% to 91.11% for T. durum wheat irrigate at 80% to 100%, but are only 55.56% to 77.78% for barley seeds treated with the same concentrations (80% to 100%).
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PDF链接：
https://arxiv.org/pdf/2006.07933
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