除草剂

Meanwhile, producers are being forced to shell out for much more herbicide following the arrival of Asian rust fungus in Brazil.

同时，随着亚洲锈菌在巴西的出现，生产者们不得不追加投资以购买更多的除草剂。

Seed germination rate and germination speed and seedling root length are more sensitive to the extract than the other index. Allelopathy on Ligularia sagitta is different among the species tested in this study, Thermopsis lanceolata, Stellera chamaejasme, Aconitum sinomontanum, Ipornoea cairica, Ajania tenuifolia and Wedelia trilobata show better result. New natural herbicides may be developed from these 6 species.

不同供体植物对箭叶橐吾化感抑制程度不同，披针叶黄华、狼毒、高乌头、五爪金龙、细叶亚菊和南美彭琪菊的作用效果非常显著（综合化感效应指数M0.50），这6种植物有望开发天然除草剂。

Seedbed in order to prevent the growth of weeds in seedbed herbicide spraying, but not in direct contact with the seed, it is necessary to support and tectorial membrane.

为防止苗床内生长杂草，可在苗床上喷洒除草剂，但不能与种子直接接触，要支架和盖膜。

When the catalyst was triethylamine, the water produced in condensation of isopropanolamine or ethanolamine and butanone was removed with benzene by water segregator, then the dichloroacetyl chloride was dropped.

利用异丙醇胺、乙醇胺、丁酮和二氯乙酰氯为原料，分别合成了两种除草剂安全剂Ⅰ∶3-二氯乙酰基-2，5-二甲基-2-乙基-1，3-噁唑烷和Ⅱ∶3-二氯乙酰基-2-甲基-2-乙基-1，3-噁唑烷。

Regular blood tests of the sequestered biospherians showed increased levels of pesticides and herbicides in their blood.

这群与世隔绝的生物圈人的常规血液测试显示了血液中杀虫剂和除草剂含量的增加。

Weed communities in the paddy fields in the two regions are less similar to that in Xiangfan-Suizhou region.

总体上看，湖北省水稻主产区稻田杂草的丰富度较低，可能与长期施用除草剂有关。

Farmers in Brazil wanted to use genetically modified soyabean seeds that had been engineered by Monsanto to be herbicide-tolerant.

巴西的农民想播种基因改良大豆，该产品是由Monsanto公司改进，有对除草剂有很强的抵抗力。

Mylabris phalerata, Meloidae family of Coleoptera, has been known since antiquity to produce a potent toxic defensive agent, known as cantharidin (exo,exo-2,3-dimethyl-7-oxabicyclo [2.2.1] heptane-2,3- dicarboxylic anhydride), but well-known as Spanish Fly. In the past, Cantharidin has used as anticancer, herbicidal, pesticide and treatment of hepatic carcinoma and molluscum contagiosum activities.

中文摘要斑蝥为翘翅目芫青科斑芫青属的昆虫，主要成分为斑蝥素(Cantharidin； exo，exo-2，3-Dimethyl- 7-oxabicyclo [2，2，1] heptane-2，3-dicarboxylic anhydride)，研究中指出斑蝥素具有发泡、抗肿瘤的作用，或当作除草剂、杀虫剂、毛发生长刺激剂，目前临床上则用於治疗原发性肝癌及传染性疣。

Through selection we obtained transgenic restorer line T773-1 with good agronomic traits and obvious resistance to striped stem borer and herbicide.

3转cry1Ab和bar基因的水稻恢复系T773-1和转Xa21基因的恢复系T773-2进行杂交、自交，对自交世代单株进行cry1Ab、bar和Xa21基因的分子标记辅助选择，获得了带有三基因的恢复系T773，田间种植对水稻白叶枯病、鳞翅目害虫、除草剂具有很好的抗性。

Rice stubble wheat field ; herbicide ; weed ; control.

稻茬小麦田；除草剂；防效；安全性

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。