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JS412 is a new imide compound with highly herbicidal activity. JS412是经过初筛具有较高除草活性的新化合物。
SYP-300 showed good herbicidal activity to broad leaf weeds at 100 g a. SYP-300在温室条件下100ga.
Here we evaluated perfectly HW02 herbicidal activity in greenhouse test. 通过试验对该药剂的室内除草活性进行了较系统的评价。
Phosphinothricin consists of two isomers, but only the L-enantiomer has herbicidal activity. 草铵膦具有两种对映异构体,但只有L-构型具有除草活性。
These compounds with novel structure are good at the herbicidal activity and novel in the action mechanism. 这些化合物具有新颖的化学结构、新奇的作用机理以及良好的除草活性。
Effect of diflufenican mixed with MCPA-Na on herbicidal activity as well as differences between foliar treatment and soil treatment were studied. 在温室条件下;研究了吡氟草胺与2甲4氯钠盐混用的除草活性;以及60%25吡氟草胺.;2甲4氯WP茎叶处理与土壤处理的效果差异。
The results of interior herbicidal activity and crop safety test showed that SIOC0285 had good activity for weeds and higher safety for rice. 经过室内除草活性筛选和作物安全性评价后认为，SIOC0285具有较高的除草活性和水稻安全性。
The preliminary herbicidal tests showed that some of the compounds exhibited herbicidal activity to Abutilon avicennae, Portulaca oleracea, Amaranthus spinosus at 150 g. 初步除草活性测试表明部分化合物在150g.
Preliminary bioassay shows that most substituted pyrazolyl benzoxazole derivatives exhibit high herbicidal activity to the tested gramineous weeds and latifoliate weeds. 初步生物活性测试表明:所合成的取代吡唑基苯并恶唑衍生物大多数对禾本科杂草和阔叶杂草有很高的防效。
The structure of the compounds were confired by 1H NMR, 1R,MS and elemental analysis.Most of the compounds have herbicidal properties.Some of them have a good herbicidal activity. 化合物经元素分析、红外光谱、核磁共振、质谱分析鉴定．其中有些新化合物具有很强的杀草活性。
As steric hindrance of the aryl amine decreased and nucleophilicity increased, occurrence of the transfor-mation reaction increased and herbicidal activity of the product decreased. 芳胺空间位阻越小,亲核性越强,副反应越容易发生,产物除草活性越低。
DIMBOA, wheat seedlings, secondary metabolite, root exudates, allelopathy, chemical induction, biological induction, bioassay, resistance to insects and diseases, herbicidal activity, weed. 01丁布;小麦幼苗;次生代谢产物;根分泌物;异株克生;化学诱导;生物诱导;生物测定;抗病虫性;抑草活性;杂草
The preliminary bioassay showed that these compounds had good herbicidal activities against grass weeds. 初步生测结果表明，这些化合物对禾本科杂草有很好的除草活性。
The synthesis of tetrazolones and the influence of substituents on their herbicidal activities are summarized. 总结了四唑啉酮化合物的合成、取代基对母体除草活性的影响。
The main pyridine classes with fungicidal, insecticidal/acaricidal and herbicidal activity are presented, together with their structures and biological activities. 内容涉及具有杀菌、杀虫杀螨、除草活性的重要吡啶类化合物及商品化品种的结构和生物活性。
Their biological activities have been determined and it is found that some of them show a good herbicidal activity,some of them are good plant growth regulators. 其生物活性初步测定结果表明4个目标化合物具有超高除草活性，1个具有良好的植物生长调节活性。
The synthesis of tetrazolones and the influence of substituents on their herbicidal activities are summarized. 27 References are presented. 总结了四唑啉酮化合物的合成、取代基对母体除草活性的影响。参考文献27篇。
In this paper, herbicidal activities and characteristics of structures of several pyrazole derivatives reported the most in the nearly ten years have been discussed. 概述了近十年文献报道最多的几类吡唑类除草剂的除草活性以及它们的结构特点。
Literatures have reported the pharmaceutical researches of this kind of compounds, together with several herbicidal activities and fungicidal activities. 这类化合物具有较高的药理学研究价值，还具有一定的除草和杀菌活性。
Keywords Tetrazole;Oxadiazole;Herbicidal activity; 四唑;恶二唑;除草活性;