摘要： 利用高抗除草剂2,4-D的亲本与不抗除草剂的品系配制组合,对亲本、F₁和F₂植株进行抗性鉴定、调查、统计,进行棉花抗除草剂2,4-D性状遗传分析,结果表明,棉花除草剂2,4-D抗性性状是由一对显性基因控制。该抗除草剂性状属于质量性状遗传,便于在棉花育种中利用,抗性水平较高,能达到800mg/kg以上水平。抗除草剂性状可以在棉花常规育种和杂交种生产利用中发挥作用。

关键词: 棉花, 抗除草剂, 2, 4-D, 遗传

Abstract: Crossed between the G. hirsutum line Ji155 that was susceptible to herbicide and the high resistant selfing line K24-D,then identified the herbicide resistance of parents,F₁ generation and F₂ generation in the field.Investigation and statistic of the resistant performance of the parents,F₁ generation and F₂ generation were used for analyses on the inheritance of herbicide resistance of this germplasm resource. The results showed that herbicide resistance was controlled by a dominant gene. This resistant trait belongs to the quality genetic,so it is easy to be used for cotton breeding. And it is high resistance level that reach to 800 mg /kg 2,4-Dichlorophenoxy acetic acid. Antiherbicide trait exhibited important utilization value to cotton breeding and hybrid cotton production.

Key words: Cotton, Herbicide resistance, 2,4-Dichlorophenoxy acetic acid, Inheritance

中图分类号: 

• S482.4