助手标题
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
共[623]条 当前为第1条到20条[由于搜索限制,当前仅支持显示前5页数据]
 

相关语句
honeybees
Consequences of High-Intensity Magnetic Effects on the Early Growth Processes in Plant Seeds and the Development of Honeybees
      
The influence of magnetic field on the early growth processes in plant seeds and the postembryonic development of honeybees was studied.
      
Some general trends in the effects of magnetic field and differences in the tolerance of plant seeds and developing honeybees to its action were revealed.
      
The main part of the former range of the Bashkir population represents a hybrid zone with approximately equal ratio between gene pools of local and introduced honeybees.
      
Genetic study on the behavior of honeybees influenced by polyandry system
      
The average recoveries from spiked honeybees (0.5-10 μg g-1) ranged from 76% for coumaphos to 100% for omethoate, with relative standard deviations between 3 and 17%.
      
Simultaneous Determination of Carbamate and Organophosphorus Pesticides in Honeybees by Liquid Chromatography-Mass Spectrometry
      
Because honeybees are very sensitive to this substance, two techniques (HPLC-UV and GC-MS) which enable its detection in several matrices of both animal and vegetable origin were used to monitor its possible presence in cultivated land.
      
Several samples with different matrices (filter paper placed on an pneumatic corn seed drill, grass, flowers, honeybees, etc.) obtained during the sowing period for imidacloprid-treated corn were analyzed.
      
The quantification limit (LOQ) was 0.005 mg kg-1 for grass and flowers, 0.002 mg kg-1 for honeybees, and 0.024 mg kg-1 for paper filters.
      
Honeybees have a rich behaviour that can be studied in the field as well as in the laboratory.
      
In honeybees (Apis mellifera) laying worker offspring is rare.
      
In daisies (Chrysanthemum frutescens), the center of the inflorescence appears as a UV-absorbing bull'-eye that attracts pollinators, for example honeybees.
      
Thomisus spectabilis crab spiders occupy daisies and prey on honeybees.
      
They typically position themselves on the lingulate florets of daisies and create a color contrast that deceives honeybees.
      
spectabilis, honeybees preferred the vacant daisy.
      
Similarly, honeybees were deterred by daisies whose center was covered by lingulate daisy florets making a rectangle about the size of a T.
      
Covering the lingulate florets of daisies by a rectangle of lingulate daisy florets, however, neither attracted nor repelled honeybees.
      
Honeybees seem to rely on the visibility of the daisy center to locate food reward and, by positioning themselves on the lingulate florets of daisies, T.
      
In this study, β-glucosidase extracted from honeybees (Apis cerana Fabr.) was used as a catalyst to produce validoxylamine A through enzymatic hydrolysis of validamycin A.
      
 

首页上一页12345下一页尾页 

 
CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社