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首页> 外文期刊>Indian Journal of Plant Protection >Bioefficacy of Bt Cotton Hybrids Containing the Fusion Gene cry1Ac-1Ab Against Spodoptera litura
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Bioefficacy of Bt Cotton Hybrids Containing the Fusion Gene cry1Ac-1Ab Against Spodoptera litura

机译：含有融合基因cry1Ac-1Ab的Bt棉杂交种对斜纹夜蛾的生物功效

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摘要

In the present study, bioefficacy of six Bt cotton hybrids viz., NCEH 2R Bt, NCEH 3R Bt, NCEH 6R Bt, NCEH 13 Bt, NCEH 14 Bt, NCEH 21 Bt carrying fusion gene cry1Ac-1Ab, Bollgard I (Mallika Bt - cry1Ac), Bollgard II (RCH-2 Bt - cry1Ac + cry2Ab), NCEH 2R Non -Bt, and NCEH 3R Non- Bt were evaluated against S litura neonate larvae. Larval mortality and growth inhibition in terms of larval body weight were recorded seven days after treatment. Among the six fusion Bt hybrids tested, lesser mortality of 29.48 per cent and higher mortality of 52.08 per cent was recorded in NCEH 14 Bt and NCEH 3R Bt, respectively whereas, standard check Bollgard II recorded maximum mortality of 56.33 per cent. Fusion Bt hybrids recorded lesser mean weight of live neonate larvae (0.17-0.70 mg) as compared to non Bt hybrids (2.21 mg). The range of reduced body weight and increased mortality recorded in Fusion Bt hybrids is noteworthy to mention in the suppression of S. litura growth .
机译：在本研究中，六个Bt棉杂种的生物功效，即NCEH 2R Bt，NCEH 3R Bt，NCEH 6R Bt，NCEH 13 Bt，NCEH 14 Bt，NCEH 21 Bt携带融合基因cry1Ac-1Ab，Bollgard I（Mallika Bt-评估了Bollgard II（RCH-2 Bt-cry1Ac + cry2Ab），NCEH 2R Non-Bt和NCEH 3R Non-Bt对荔枝S新生幼虫的作用。治疗后7天记录幼虫死亡率和以幼虫体重计的生长抑制。在所测试的六种融合Bt杂种中，NCEH 14 Bt和NCEH 3R Bt分别记录了较低的死亡率29.48％和较高的死亡率52.08％，而标准检查Bollgard II记录的最高死亡率为56.33％。与非Bt杂种（2.21 mg）相比，融合Bt杂种记录的新生幼虫平均体重（0.17-0.70 mg）要少。 Fusion Bt杂种中记录到的减轻体重和增加死亡率的范围在抑制斜纹夜蛾生长方面值得一提。

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