水稻二化螟耐寒性研究进展

Advances in the research on cold hardiness of the rice borer [Chilo suppressalis(Walker)]

二化螟[Chilo suppressalis(Walker)]是我国水稻上的一种重要害虫。季节性的环境温度变化对二化螟种群消长影响明显,因此该越冬幼虫耐寒性强弱已成为制约其种群生存和繁衍的重要因素。本文对有关二化螟耐寒性的研究现状进行了综述,从其耐寒性与过冷却点、耐寒对策、环境变化和自身耐寒物质调节之间的关系等方面进行了分析,同时对该虫今后耐寒性研究重点提出了相应的建议。

Chilo suppressalis is one of the most important pests of rice in China. The population dynamics of C. suppressalis was significantly influenced by seasonal environmental temperature. Therefore, cold hardiness of C. suppressalis has already become an important factor that could determine the survival and development of the population. Advances in the research on cold hardiness of C. suppressalis were summarized in this paper. Meanwhile, the relations between cold-hardiness and supercooling point （SCP）, strategies of cold adaptation, environmental variability and its cold-hardiness substances were also analyzed. Finally, some suggestions about subsequent researches on cold hardiness of C. suppressalis were proposed.