Folcher L, Eychenne N, Weissenberger A, Jarry M, Regnault-Roger C, Delos M
SRPV-DRAF "Midi-Pyrénées"--Bât. E Bd Armand Duportal, FR-31074 Toulouse, France.
Commun Agric Appl Biol Sci. 2006;71(2 Pt A):227-31.
Crops of maize (Zea mays L.) were conducted in southwestern France with GMO (Genetic Modified Organism) vs isogenetic varieties in order to verify the control of European Corn Borer (ECB) Ostrinia nubilalis (Hübner) and the Corn Stalk Borer (CBS) Sesamia nonagrioides (Lefevbre) by GMO in field conditions. The bioassays were carried out in 1998 and 1999 before moratorium, then in 2005. Experiments involved respectively 18, 12 and 19 fields cultivated with Furio/Furio cb (GMO), Cecilia/ Elgina (GMO) and PR33P66/PR33P67 (GMO) varieties. These transgenic events expressed Cry1A(b) protein (Bt maize). Plants were noted for insect infestation assessment (number of larvae in stalks and ears per plant). Statistical tests used t-test on couple of plots. Results showed a significant difference in the density of both ECB and CBS between control and the two transgenic events. The two transgenic events acted differently. The control of the two Bt events on the two pests were differentiated and discussed. These experiments underlined the importance of field evaluation for testing real effects of transgenic events on crop according the environmental context.
在法国西南部种植了转基因玉米（Zea mays L.）与同基因品种，以验证转基因玉米在田间条件下对欧洲玉米螟（ECB）Ostrinia nubilalis（Hübner）和玉米螟（CBS）Sesamia nonagrioides（Lefevbre）的防治效果。生物测定分别在1998年和1999年暂停之前以及2005年进行。实验分别涉及18块、12块和19块种植Furio/Furio cb（转基因）、Cecilia/Elgina（转基因）和PR33P66/PR33P67（转基因）品种的田地。这些转基因事件表达Cry1A(b)蛋白（Bt玉米）。记录植株的虫害评估情况（每株茎杆和果穗上的幼虫数量）。统计测试对成对地块使用t检验。结果表明，对照与两个转基因事件之间，欧洲玉米螟和玉米螟的密度存在显著差异。这两个转基因事件的作用方式不同。对两个Bt事件对两种害虫的防治效果进行了区分和讨论。这些实验强调了根据环境背景进行田间评估以测试转基因事件对作物实际影响的重要性。
