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   gm cotton 的翻译结果: 查询用时:0.146秒
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gm cotton
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  转基因棉
     The quantified analysis of China's GM cotton yield capacity by C-D function and stochastic frontier model
     利用CD函数和随机前沿模型定量化分析中国的转基因棉生产力(英文)
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  “gm cotton”译为未确定词的双语例句
     【Conclusion】In view of the severe damage of cotton bollworm,it is necessary to develop a cotton IPM system based on the application of GM cotton varieties in southern Xinjiang.
     结论鉴于棉铃虫的严重危害,南疆地区有必要发展基于Bt棉花的棉花害虫综合防治技术。
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  相似匹配句对
     The Difficulty of GM
     定义术语:"遗传修饰GM"的困难
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     Advantages of the GM(1,n)Model in Computerized Cotton Yarn Forecasting
     灰模型在自动配棉中成纱预测的探讨
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     And with the cotton roots,the G.
     G.
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     Cotton Beach
     科顿海滩
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     Status of commercialized GM crop including insect-resistant transgenic cotton
     抗虫棉等转基因农作物产业化进程
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  gm cotton
Concluded from above results, we believed that the established event-specific qualitative and quantitative PCR systems for Mon1445 and Mon531 in this study are acceptable and suitable for GM cotton identification and quantification.
      
Genetically modified (GM) cotton lines have been approved for commercialization and widely cultivated in many countries, especially in China.
      
With the seed from Monsanto, Somakka was able to sow a halfhectare of GM cotton.
      
Via its collaboration with Mahyco, since March 2002 Monsanto has had a licence to sell GM cotton in six southern Indian states.
      
The scientists say that if GM rice was widely used by farmers, it would have an even greater impact than GM cotton.
      
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Chinese tussah silkworm, Antheraea pernyi (Lepidoptera: Saturniidae) is an important economic insect cultured widely in field using its wild host plants in northern and northeastern China. To clarify whether there is any risk concerning the effects of the pollens from Cry1Ac - and Cry1A+CpTI-transgenic cotton(Gossypium hirsutum ) varieties to insect, the frequency and deposition of pollen dispersal from cotton, and impact of their pollens on the development of A. pernyi were investigated separately...

Chinese tussah silkworm, Antheraea pernyi (Lepidoptera: Saturniidae) is an important economic insect cultured widely in field using its wild host plants in northern and northeastern China. To clarify whether there is any risk concerning the effects of the pollens from Cry1Ac - and Cry1A+CpTI-transgenic cotton(Gossypium hirsutum ) varieties to insect, the frequency and deposition of pollen dispersal from cotton, and impact of their pollens on the development of A. pernyi were investigated separately in the field and laboratory in 2002. The pollen bioassay demonstrated that the deposition at the distance from 1 m inside and 1 m outside of the cotton field balk was less than 200 grains/cm2 after 5 days exposure. The leaves of Quercus liaotungensis , one of the most major host trees of this insect, was separately treated with cotton pollens collected from gene modified (GM) cottons and conventional cotton at the density levels of 1000 and 10 000 grains/cm2, and then the neonate larvae were fed 5 days with treated leaves for assessing developmental differences. The results showed that there were no significant differences in larval mortality, developmental duration, relative consumption quantity, efficiency of approximate digestion of food, efficiency of conversion of digested food, efficiency of conversion of ingested food and relative metabolic rate during the first to third instar stage of the insect among the treatments containing pollen grains of GM cottons and conventional cotton. It was suggested that there was no significant adverse effects of GM cotton planting on the growth and development of Chinese tussah silkworm.

柞蚕(Antheraeapernyi)是中国华北和东北地区大面积人工野外饲养的重要经济昆虫,以天然柞林形成的蚕场与棉花常处于同一生态系统中。采用田间花粉沉积量测定结合室内生物测定的方法评价了转Cry1Ac基因和Cry1A+CpTI基因棉(Gossypiumhirsutum)花粉对柞蚕生长发育的生态风险。花粉沉积量测定表明,棉田内1m至棉田外1m的范围内,棉花花粉5d累积密度低于200粒/cm2。用转基因抗虫棉花粉处理(花粉密度约1000粒/cm2和10000粒/cm2)的辽东栎(Quercusliaotungensis)叶片分别饲养蚁蚕至3龄末,结果显示,与非转基因棉花粉处理相比1~3龄期柞蚕的死亡率、发育历期、以及食物利用率、食物转化率、相对代谢速率、相对取食量和近似消化率等营养指标均无显著差别。表明两种供试转基因抗虫棉的种植不会对柞蚕的生长发育带来显著不利影响。

【Objective】Cotton planting region in southern Xinjiang has become one of the most important regions for China's cotton production.As a major negative factor in cotton industry,cotton bollworm,Helicoverpa armigera,possesses a biological potential to outbreak in this region.【Method】 The current research results on trend of occurrence of H.armigera and control efficacy of Bt cotton in southern Xinjiang are reported.【Result】The monitoring on population density of the pests in wheat...

【Objective】Cotton planting region in southern Xinjiang has become one of the most important regions for China's cotton production.As a major negative factor in cotton industry,cotton bollworm,Helicoverpa armigera,possesses a biological potential to outbreak in this region.【Method】 The current research results on trend of occurrence of H.armigera and control efficacy of Bt cotton in southern Xinjiang are reported.【Result】The monitoring on population density of the pests in wheat field from 1993 to 2004 indicated that as the regulation of cotton-corn planting system in southern Xinjiang,the occurrence and damage of H.armigera increased year by year after 1997,and it has become a main pest in agriculture in comparison with old system containing a small proportion of cotton.The field trials on population dynamics of cotton bollworm on GM cotton varieties expressing Cry1A toxin and Cry1A/CpTI,and their parental varieties during 2002-2004 showed that the second generation bollworm mainly injure cotton,and the control efficacies from both GM cotton varieties were more than 75%.It is suggested that the Bt cotton could effectively control damages caused by cotton bollworm in the moderate outbreak year.【Conclusion】In view of the severe damage of cotton bollworm,it is necessary to develop a cotton IPM system based on the application of GM cotton varieties in southern Xinjiang.

目的新疆南部棉花种植区已发展成为中国棉花产业的重要基地。作为棉花生产的重要影响因素,棉铃虫具有在新疆南部猖獗危害的生物学基础。方法本文报道了南疆棉铃虫发生趋势及转Bt基因抗虫棉对棉铃虫控制效率的研究结果。结果1993~2004年对麦田一代棉铃虫幼虫数量变化的监测显示,1997年后棉铃虫的发生危害逐年上升,表明南疆粮棉混作区种植制度的改革已导致棉铃虫成为农业生产的重要害虫。2002~2004年对抗虫棉GK19(表达Cry1A杀虫蛋白)、SGK321(表达Cry1A和CpTI杀虫蛋白)和对照品种棉铃虫种群动态的研究显示,二代棉铃虫是南疆地区棉花的主要危害代别,抗虫棉花对幼虫的控制效率可达75%以上。在棉铃虫发生中等年份,转基因抗虫棉花可有效地控制棉铃虫的危害。结论鉴于棉铃虫的严重危害,南疆地区有必要发展基于Bt棉花的棉花害虫综合防治技术。

Prey-mediated effects of genetically manipulated (GM) plants on polyphagous natural enemies were studied. Transgenic cotton cv. SGK321 (with inserted genes of Cry1Ac and CpTI) was used as the GM, the cotton aphid Aphis gossypii as the model pest, and the wolf spider Alopecosa pulverulenta (Clerck) as the generalist natural enemy. Aphids reared on GM vs. non-GM cotton were both poor quality food for A. pulverulenta spiderlings, in terms of growth and mortality. But the spiderlings...

Prey-mediated effects of genetically manipulated (GM) plants on polyphagous natural enemies were studied. Transgenic cotton cv. SGK321 (with inserted genes of Cry1Ac and CpTI) was used as the GM, the cotton aphid Aphis gossypii as the model pest, and the wolf spider Alopecosa pulverulenta (Clerck) as the generalist natural enemy. Aphids reared on GM vs. non-GM cotton were both poor quality food for A. pulverulenta spiderlings, in terms of growth and mortality. But the spiderlings showed higher survival and developed better when they were fed with aphids and fruit flies alternatively. When fed with aphids only, there were no differences in impact whether prey aphids were from GM or non-GM cotton, both in the limited feeding and unlimited feeding regimes. In the unlimited feeding experiment, the spiderlings showed higher survival when they were fed with aphids from GM cotton and fruit flies alternatively, compared with those fed with aphids from non-GM cotton and fruit flies alternatively, but body mass of the spiderlings did not differ between these two treatments. In the limited and mixed feeding experiment, there were no differences in impact whether prey aphids were from GM or non-GM cotton. The results indicate that transgenic cotton cv. SGK321 has no significant adverse effects on the survival and development of the wolf spider through non-target prey cotton aphid.

本文以转双价基因棉花SGK321、棉蚜Aphis gossypii和粉舞蛛Alopecosa pulverulenta为对象,研究了捕食转基因植物上的植食性害虫对多食性捕食性天敌的影响。结果表明,粉舞蛛可以猎食棉蚜,但单独捕食棉蚜不足以长期维持若蛛的生存和发育;与果蝇混合饲养,能显著提高若蛛存活率和体重。在猎物过量或数量不足的情况下,单独捕食转基因棉或常规棉上的棉蚜,若蛛的生存曲线和体重差异不显著。在猎物过量的条件下,用转基因棉上的棉蚜与果蝇混合饲养,若蛛的存活率显著高于用常规棉上的棉蚜与果蝇混合的处理;但这两种处理下,若蛛的体重差异不显著。在猎物数量不足的情况下,用转基因棉或常规棉上的棉蚜与果蝇混合饲养,若蛛的存活率和体重差异都不显著。可见,转双价基因棉花SGK321上的棉蚜对粉舞蛛的存活和发育没有显著的不利影响。

 
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