抗除草剂作物的发展

The Development of Herbicide-resistant Crops

抗草甘膦作物大量、广泛使用草甘膦会造成高选择性压力,促使杂草对草甘膦抗性的发展,因此面对草甘膦抗性与耐性杂草群落,不能长期单纯依靠草甘膦来治理杂草。笔者介绍了非草甘膦抗性作物的发展,如抗草铵膦、咪唑啉酮、磺酰脲、溴苯腈、环己烯二酮、HPDD以及PPO抗性作物;同时一些公司正在开发新的除草剂抗性作物技术,将草甘膦抗性与其它除草剂抗性结合在一起,而分子积累则可将除草剂抗性基因集中于相同基因构成中,从而易于获得多种性状并开发多抗性作物。

The intensive use of glyphosate in glyphosate-resistant crops across wide areas has resulted in extremely high selection pressure for the evolution of glyphosate-resistant weeds. Consequently, growers now have glyphosateresistant and tolerant weed populations and can no longer rely only on glyphosate for weed management. This paper discusses the development of non-glyphosate resistant crops, such as glufosinate, imidazolinone, sulfonylurea, bromoxynil, cyclohexanedione, HPPD and PPO-resistant crops. Fortunately, companies are developing new herbicide-resistant crop technologies to combine with glyphosate resistance and expand the utility of existing herbicides, a molecular stack combines the herbicide-resistant genes in the same genetic construction and thus makes it easier for work with the multiple traits, and development of multiple-herbicide-resistant crops.