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转基因棉     
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  transgenic cotton
     For example, the total protein content of cotton worm fed on the normal cotton is 265.8 ug/ml at 6day, while that of cotton worm fed on the transgenic cotton is 168.9 ug/ml, the latter has declined 36.5%;
     如取食常规棉泅棉3号的棉铃虫幼虫总蛋白含量在第6天为265.8ug/ml,而取食转基因棉的同期只有168.9ug/ml,后者比前者减少了36.5%;
短句来源
     Study on the Physiological Change of Nitrogen Metabolism in Bt Transgenic Cotton
     Bt转基因棉氮代谢生理变化的研究
短句来源
     In addition, when cotton worm is to 9 stage grade (equal to the end of 3 stage), the blood numbers of cotton worm fed on the normal cotton is 458.7 /ul, while that of cotton worm fed on the transgenic cotton is 346.3 /ul, the latter has declined 24.5%.
     又如取食常规棉的棉铃虫,在发育至龄期级别为9时(相当于3龄末期),体内血细胞数达到458.7个/ul,而取食转基因棉后,其血细胞数仅有346.3个/ul,后者下降了24.5%。
短句来源
     The Comparision of Transgenic Cotton PCR and Kanamycin Detection
     转基因棉PCR与卡那霉素检测的比较
短句来源
     When parasites have their eggs in the larva of cotton worm, which has been fed the transgenic cotton, cocooning rate of two parasites decline 26.5% and 18.5%, the average weight of the cocoon also declines 1.0mg and
     两种寄生蜂中红侧沟茧蜂和棉铃虫齿唇姬蜂在寄生取食过转基因棉的棉铃虫幼虫后,其出茧率比取食常规棉的分别下降26.5%、18.5%,平均茧重分别减少1.0mg和5.1 mg,且中红侧沟茧蜂的畸茧率上升23.2%。
短句来源
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  transgenic bt cotton
     Based on the specific situation in China, the premiptive resistant management and the IPM strategies for transgenic Bt cotton were proposed.
     并针对我国的具体情况,讨论了害虫对转Bt基因棉抗性的预防策略及转基因棉IPM体系的关键技术组成。
短句来源
     (2) In the IPM field, a second release of T. chilonis achieved a parasitism rate in the second generation of the cotton bollworms of 46.4%, an increase of 33.1% and 32.1%, compared to the non-release transgenic Bt and pesticide fields. In the transgenic Bt cotton field in which T.
     ( 2 )棉铃虫 2代期 ,在常规棉综防田释放赤眼蜂 2次 ,其寄生率为 46 4% ,比未释放赤眼蜂的转基因棉棉田和常规棉对照田提高 33 1%和 32 1% ;
短句来源
     Compared with non-transgenic cotton treatment,at the 30th day of emergence,transgenic Bt cotton treatment and(Bt+CpTI)A treatment had no significant influence on the three oxidoreductases,but(Bt+CpTI)B treatment exhibited significantly lower dehydrogenase activity.
     转基因棉种植对土壤过氧化氢酶、脱氢酶和硝酸还原酶的活性影响研究表明,生长30天时,与等价基因系非转基因棉相比,转Bt基因棉和双抗棉A的种植并未使三种酶活性发生显著变化,而双抗棉B的种植使土壤脱氢酶活性显著下降。
短句来源
     A pot experiment was conducted with transgenic Bt cotton and Bt+CpTI cottons to investigate the effect of transgenic Bt cotton and Bt+CpTI cotton planting on soil catalase,dehydrogenase and nitrate reductase activities. The results showed that Bt toxin could be introduced into soil through root exudates of three transgenic cottons during the 30 days of emergence,while the CpTI protein amount in the soil was correlated with cotton breed when Bt+CpTI cotton being planted.
     转Bt基因棉和转Bt+CpTI基因棉及相应非转基因棉的盆栽试验研究表明,转基因作物生长30天时可向土壤中释放Bt杀虫晶体蛋白,而双抗棉种植时CpTI杀虫晶体蛋白的释放量与作物品种有关;
短句来源
     The results showed that the number of species, the total number, abundance of the pests in transgenic Bt Cotton (R93 4) were lower than that of conventional cotton, i. e. the contratest, and that the dominant pest was not the cotton bollworm but the red spider mite and aphid.
     结果表明,转基因棉昆虫群落的种类丰富度、总个体数、害虫的相对丰盛度均低于常规棉,优势种类有较大的变化,棉铃虫已不是转基因棉田的优势害虫,棉蚜、红蜘蛛、叶甲类、棉蓟马等成为优势害虫,优势捕食性天敌种类为龟纹瓢虫,寄生性天敌优势种变化较大。
短句来源
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  bt transgenic cotton
     Study on the Physiological Change of Nitrogen Metabolism in Bt Transgenic Cotton
     Bt转基因棉氮代谢生理变化的研究
短句来源
     EFFECTS OF HEAT STRESS ON TOXIN PROTEIN CONTENT IN Bt TRANSGENIC COTTON LEAVES
     高温胁迫对Bt转基因棉叶片毒蛋白含量的影响
短句来源
     Compared with Zhong 16 (the recipient cotton line of Bt transgenic cottton), Bt transgenic cotton did not show significantly higher larval mortality, but showed significant inhibition of larval growth.
     8月中旬两种转基因棉的抗虫活性均明显降低 ,且Bt棉的杀虫活性显著低于CpTI Bt棉 ,其幼虫死亡率与对照受体棉中 16的死亡率之间无显著差异 ,仅显著抑制了幼虫的生长 ;
短句来源
     A comparatively complete framework,system and platform have been tentatively established for assessment of the economic value of the genetic resources and used to assess preliminarily the economic values of human genes,wild soybean and BT transgenic cotton. The results of the assessment can serve as scientific basis for marketization of genetic resources and sharing of the benefit of international genetic resources and as reference for further studies in this aspect.
     初步建立了比较完整的遗传资源经济价值评估的框架、体系、平台 ,初步评估了人体基因、野生大豆、BT转基因棉的经济价值 ,为遗传资源市场化和国际遗传资源惠益分享提供科学依据 ,为进一步研究提供参考。
短句来源
     (1) The susceptibility of larvae of less army worm Helicoverpa armigera to B.t. was increased when the larvae were fed with transgenic cotton compared to those fed on the non-transgenic cotton, but decreased after 10-generation's feeding with the bt transgenic cotton plants.
     1 B.t.与转δ-内毒素基因棉(下称转基因棉)联合作用后使得棉铃虫对B.t.的敏感性增强,但多代取食转基因棉的试虫却对B.t.的敏感性下降。
短句来源
更多       
  gm cotton
     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)
短句来源

 

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      transgenic cotton
    Seed germination percentage was 95% after the F1 seeds of transgenic cotton plants were cultured on half-strength MS medium supplemented with 50 mg/l kanamycin.
          
    Physiological activities and expression of insecticidal protein in Bacillus thuringiensis transgenic cotton leaves subjected to
          
    Measuring gene flow in the cultivation of transgenic cotton (Gossypium hirsutum L.)
          
    Transgenic Bt cotton NewCott 33B and transgenic tfd A cotton TFD were chosen to evaluate pollen dispersal frequency and distance of transgenic cotton (Gossypium hirsutum L.) in the Huanghe Valley Cotton-producing Zone, China.
          
    A field test plot of transgenic cotton (6×6 m) was planted in the middle of a nontransgenic field measuring 210×210 m.
          
    更多          
      transgenic bt cotton
    Leaf surface factors of transgenic Bt cotton associated with the feeding behaviors of cotton aphids: A case study on non-target
          
    The present paper reports case study results of the risk assessment of transgenic Bt cotton on a non-target pest, cotton aphid, Aphis gossypii.
          
    These results demonstrated that leaf surface physical factors of transgenic Bt cotton lines different from their parental non-Bt line could affect the penetration behaviors of non-target cotton aphids.
          
    Transgenic Bt cotton NewCott 33B and transgenic tfd A cotton TFD were chosen to evaluate pollen dispersal frequency and distance of transgenic cotton (Gossypium hirsutum L.) in the Huanghe Valley Cotton-producing Zone, China.
          
    Soil persistence of Bacillus thuringiensis (Bt) toxin from transgenic Bt cotton tissues and its effect on soil enzyme activities
          
    更多          
      gm cotton
    Genetically modified (GM) cotton lines have been approved for commercialization and widely cultivated in many countries, especially in China.
          
    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.
          
    Approval would enable the continued commercial release of the GM cotton.
          
    Farmers in South Sulawesi, Indonesia burning GM cotton in September 2001.
          
    For the smallholder sector, there are new results on the impacts of GM cotton and white maize on output and employment.
          
    更多          


    The resistance of Bt transgenetic cotton lines to cotton bollworm (Heliothis armigera Hübner) were evaluated in laboratory and caged field in Beijing, and in the fields of South Crop Breeding Base in Hainan Province. The results showed that the corrected mortalities of lst instar larvae feeding on tender leaves ranged 80%~85%, and decreased with the advancing of larval instars. Under inoculation (in cage) or natural infestation conditions, the infested square/boll and plant tip rates were less than 2% and 10%,...

    The resistance of Bt transgenetic cotton lines to cotton bollworm (Heliothis armigera Hübner) were evaluated in laboratory and caged field in Beijing, and in the fields of South Crop Breeding Base in Hainan Province. The results showed that the corrected mortalities of lst instar larvae feeding on tender leaves ranged 80%~85%, and decreased with the advancing of larval instars. Under inoculation (in cage) or natural infestation conditions, the infested square/boll and plant tip rates were less than 2% and 10%, respectively, and a few of cotton lines were nearly undamaged. The transgenetic cotton lines showed a high resistance and had a suppressing effect on the population density of cotton bollworm.

    在北京和海南岛南繁基地对我国首批转基因棉花株系进行了抗棉铃虫性综合鉴定试验。结果表明,1龄幼虫取食转基因棉株嫩叶校正死亡率达80%~85%,幼虫越大死亡率越低。在网室内接虫和田间自然感虫的条件下,蕾铃被害率可控制在2%以下,顶尖被害率控制在10%以下,部分株系几乎不受危害。转基因抗虫棉花株系表现出对棉铃虫具有很高抗性和控制危害的能力,对棉铃虫的种群密度具有明显的控制作用。

    An identification technique and evaluation standard for resistance of B t transgenic cotton to Helicoverpa armigera (Huber) were studied The standard was combined of the damage of cotton square and boll in caged field and the larvae corrected mortility in lab Thirty nine transgenic cotton lines were evaluacted using this technique The results indicated that there were 58 97% of total lines showing high resistance

    根据近年对我国培育出的转基因棉抗虫性鉴定实践,总结制定出转基因棉抗虫性鉴定技术和标准。应用该技术鉴定出36号等转B.t.基因棉高抗棉铃虫的株系,并已进入田间试种

    The large scale of commercial use of transgenic Bt cotton in 1996 started a new era in pest control history,which means that the resistant Helicoverpa pests willl be controlled effectively.In thsi paper,the breeding and commercial use of transgenic Bt cotton,the effects of transgenic Bt cotton on Lepidoptaran and Non-Lepidopteran insects,andresistance of pests to Bt (both Bt formulation and Bt cotton ), and its premiptive management strategies were reviewed. Based on the specific situation in China, the premiptive...

    The large scale of commercial use of transgenic Bt cotton in 1996 started a new era in pest control history,which means that the resistant Helicoverpa pests willl be controlled effectively.In thsi paper,the breeding and commercial use of transgenic Bt cotton,the effects of transgenic Bt cotton on Lepidoptaran and Non-Lepidopteran insects,andresistance of pests to Bt (both Bt formulation and Bt cotton ), and its premiptive management strategies were reviewed. Based on the specific situation in China, the premiptive resistant management and the IPM strategies for transgenic Bt cotton were proposed.

    本文综述了转Bt基因棉的培育及应用,对鳞翅目害虫的抗性及对非鳞翅目害虫和天敌的影响,以及害虫对转Bt基因棉抗性的预防和治理等方面的研究进展。并针对我国的具体情况,讨论了害虫对转Bt基因棉抗性的预防策略及转基因棉IPM体系的关键技术组成。

     
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