种菊 meaning in Chinese

grow chrysanthemum a surname

In this article is introduced a new method to make anti - insect fiber by using deltamethrin to replace permithrin to add into polyethylene with a comprison of the two kinds of anti - insect fibers by use of deltamethrin and permithrin made , indicating that the anti - insect effect by use of deltamethrin being better
摘要溴氰菊酯防虫药效较氯菊酯高一个数量级，介绍了改变生产工艺和配方，用溴氰菊酯代替氯菊酯加入聚乙烯制成新防虫纤维的方法，并对两种菊酯制得的防虫纤维进行了对照测试，表明改变后防蚊效果优于改前。
Abstract : quantitative genetic variation in larval tolerance to cyhalothrin and fenvalerate was examined in a pyrethroid - resistant population of cotton bollworm , helicoverpa armigera ( h & uuml ; bner ) was examined with half - sibling analysis and significant additive genetic variation in larval tolerance was detected , demonstrating that tolerance phenotypes in this population are highly heritable ( h2n narrow sense heritability = 0 . 4625 0 . 1578 ) to fenvalerate than that to cyhalothrin ( h2n = 0 . 2476 0 . 0248 )
文摘:通过单对交配设计不同的交配家系,采用半同胞法分析了棉铃虫对三氟氯氰菊酯和氰戊菊酯的抗性狭义遗传力,并对2种菊酯类药剂的抗性发展速度进行评价。