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首页> 外文期刊>South African Journal of Plant and Soil >Maize-planting date interaction and effect of Bt maize on European corn borer (Ostrinia nubilalis (Hubner) (Coleoptera: Crambidae) damage
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Maize-planting date interaction and effect of Bt maize on European corn borer (Ostrinia nubilalis (Hubner) (Coleoptera: Crambidae) damage

机译：玉米种植日期的互作和Bt玉米对欧洲玉米r（Ostrinia nubilalis（Hubner）（鞘翅目：Crambidae））的伤害

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摘要

A study was conducted to determine the influence of planting date and transgenic maize on maize yield following stalk injury by European corn borer, Ostrinia nubilalis (Hubner). Transgenic and non-transgenic maize hybrids with short- and full-season maturity were planted in late April, mid-May and early June from 2006 to 2008 in Ohio, USA. Maize stem tunnelling was significantly higher on non-transgenic maize and increased with delayed planting. Significantly higher yields were obtained from full-season than short-season hybrids when maize was planted early. The results suggest that when planting is delayed and an European corn borer population is known to cause economic damage in an area, selection of short-season hybrids with the Bt gene can be beneficial in controlling damage and improving yield.
机译：进行了一项研究以确定播种期和转基因玉米对欧洲玉米bore（Ostrinia nubilalis（Hubner））造成的茎损伤后玉米产量的影响。 2006年至2008年，在美国俄亥俄州的4月下旬，5月中旬和6月初种植了具有短时和全季节成熟度的转基因和非转基因玉米杂交种。在非转基因玉米上，玉米茎的掘进显着更高，并且随着播种的延迟而增加。当玉米早播时，从全季节获得的产量比短季节杂交获得的产量高得多。结果表明，当播种延迟并且已知欧洲玉米bore种群在该地区造成经济损失时，选择带有Bt基因的短季节杂交种可能有助于控制损害和提高产量。

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