加利福尼亚的基因改良油菜种子库的持久性。
Seed bank persistence of genetically modified canola in California.
机构信息
University of California Cooperative Extension, P.O. Box 697, Orland, CA 95963, USA.
出版信息
Environ Sci Pollut Res Int. 2012 Jul;19(6):2281-4. doi: 10.1007/s11356-011-0733-8. Epub 2012 Jan 19.
INTRODUCTION
Canola, which is genetically modified (GM) for tolerance to glyphosate, has the potential to become established as a new glyphosate resistant weed, thus reducing the effectiveness of glyphosate.
METHODS
Volunteer from dormant canola seeds produced thousands of plants per hectare in the fourth year (2011) following a 2007 crop harvest. This occurred with no additional canola seed production since the 2007 harvest.
RESULTS
Volunteer plants following harvests of annual crops are typically only a problem for the first year after harvest. In California, glyphosate is the core herbicide on over a million hectares of high value row, tree, and vine crops and new glyphosate resistant weeds reduce the effectiveness of glyphosate.
CONCLUSIONS
The combination of dormant seed and herbicide resistance makes GM glyphosate-resistant canola a new and difficult California weed which was first observed in the winter of 2009.
简介
油菜籽经过基因改良（GM）以耐受草甘膦，有可能成为一种新的抗草甘膦杂草，从而降低草甘膦的有效性。
方法
2007 年作物收获后的第四年（2011 年），休眠油菜籽中的志愿者种子每公顷产生了数千株植物。自 2007 年收获以来，没有额外的油菜籽种子生产。
结果
在每年作物收获后，志愿者植物通常只是在收获后的第一年才成为问题。在加利福尼亚州，草甘膦是超过 100 万公顷高价值的行、树和藤本作物的核心除草剂，新的抗草甘膦杂草降低了草甘膦的有效性。
结论
休眠种子和除草剂抗性的结合使 GM 抗草甘膦油菜籽成为加利福尼亚州的一种新的且难以处理的杂草，这种杂草于 2009 年冬季首次被观察到。
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