常見例句The results of RAPD (random amplified polymorphic DNA) ana lysis showed that genetic variation was obvious between the univoltin e ecotype and the bivoltine ecotype. 采用RAPD方法對發(fā)生在吉林省的亞洲玉米螟一、二化性類型作了分析。The photoperiodic reactions of univoltine and bivoltine Asian corn borer (ASB) Ostrinia furnacalis (Guenee) under alternative and constant temperature conditions were studied in Jilin Province. 在變溫和恒溫條件下研究了吉林省的一、二化性亞洲玉米螟的光周期反應。bivoltine race 二化性品種Bivoltin race 二化性品種 返回 bivoltine