Relationship between resistance of rice to Nilaparvata lugens (Stål) and the contents of volatiles YANG Lang1,2,3, SUN Rong-ke1,3, JIANG Jian-jun2, HUANG Li-fei2, LI Rong-bai1,3* (1.Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning 530007, China; 2.Plant Protection Research Institution, Guangxi Academy of Agricultural Sciences, Nanning 530007, China; 3.Key Laboratory of Subtropical Bioresource Conversation and Utilization, Nanning 530005, China) Abstract: Thirty eight resistant plants and 13 susceptible plants against Nilaparvata lugens(Stål) were selected for extracting secondary volatiles by steam distillation method. The extracted compounds were analyzed by GC/MS. The results showed that total content of volatiles was significantly different between resistant and susceptible plants, and the total content of volatiles were decreasing with increasing resistance of rice and increasing number of the resistant genes to Nilaparvata lugens (Stål).