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针对吉林省东部、西部地区的亚洲玉米螟一化性和二化类型种群,研究玉米螟滞育与饲养温度的关系、自交后代和杂交F1代的滞育后发育历期及在不同生态区的一代化蛹率。研究表明:人工累代饲养的两种化性类型玉米螟发育历期比较一致,但降低饲养温度后,滞育率则表现出明显不同,一化性类型玉米螟滞育率显著高于二化性类型。两种类型玉米螟人工饲养的后代,经诱导滞育后仍然存在滞育后发育历期上的差异,与其越冬代所具有的滞育后发育历期特性相似。两种类型玉米螟杂交F1代滞育后发育历期特性的表现因双亲在杂交组合中的相互关系而异,正交与反交组合F1代的滞育后发育历期差异显著。在吉林省东部、中部、西部3个生态区内,虽然相同类型玉米螟的化蛹率有较大区别,但在同一生态区内两种类型玉米螟的化蛹率仍具有显著差异,二化性类型玉米螟的化蛹率明显高于一化性类型。
Based on the monoculture and biochemical population of the Asian corn borer in the eastern and western regions of Jilin Province, the relationship between the diapause and feeding temperature of the Chinese corn borer (Ostrinia furnacalis), the developmental period of the diapause after selfing and F1 hybrids, The generation of pupation rate. The results showed that the developmental durations of the two chemical types of corn borer were relatively consistent, but the diapause rate was significantly different after the feeding temperature was lowered. The diapause rate of the maize borer was significantly higher than that of the two sexes Types of. After the two types of maize borer artificially reared offspring, diapause still exist after diapause of the developmental duration differences, and its overwintering generation has the characteristics of diapause after the developmental history similar. The diapause developmental characteristics of F1 hybrids of F1 hybrids of two types were different due to the interrelationship of parents in F1 hybrids. The diapause developmental durations of F1 generation were significantly different between crossed and crossed crosses. In the three ecotopes of eastern, central and western Jilin Province, the pupation rates of the two types of maize borer were still significantly different in the same ecotype although the differences in the pupation rates of the same types of maize borers were quite different. Sexual types of maize borer pupation rate was significantly higher than the type of one sex.