论文部分内容阅读
为探讨草莓果实中吡虫啉残留的品种间差异,研究了8个品种草莓果实中吡虫啉的残留动态。结果表明:吡虫啉在不同品种草莓上的降解半衰期在2.1~4.4d之间;随着时间的延长,吡虫啉在草莓果实中的残留量逐渐降低;其中“槐花蜜”、“卡姆罗莎”、“幸香”和“明宝”4个品种的半衰期均在2d左右,“弗吉尼亚”的半衰期最长,为4.41d;该试验中有6个草莓品种的吡虫啉半衰期均在4d以内,属于低农药残留的基因型,值得在生产上推广应用,有利于提高草莓的食用安全水平。
In order to investigate the differences among imidacloprid residues in strawberry fruits, the residual dynamics of imidacloprid in eight varieties of strawberry fruits were studied. The results showed that the degradation half-life of imidacloprid on different varieties of strawberries was between 2.1 and 4.4 days. With the time prolonging, the residues of imidacloprid in strawberry fruits gradually decreased. Among them, the “Sophora japonica”, " The half-lives of the four cultivars of Shakespeare, Sauvignon and Mingbao were both around 2d, and the longest half-life of Virginia was 4.41d. There were 6 half-lives of imidacloprid in strawberry varieties Are within 4d, belong to the genotype of low pesticide residues, it is worth promoting in the application of production, help to improve the level of food safety strawberry.