小麦品种对禾谷缢管蚜抗性的多目标评价及抗性因素分析  

Multi objective Evaluation on Resistance of Wheat Wariety to Rhopalosiphum padi (L.) and Analysis on Resistant Factors

作　　者：郭良珍[1] 刘绍友[2] 

机构地区：[1]湛江海洋大学农学院,湛江524088 [2]西北大学生态经济经济研究室,西安710069

出　　处：《湛江海洋大学学报》2000年第2期40-44,共5页Journal of Zhanjiang Ocean University

摘　　要：用多目标层次加权法评价了 8个小麦品种对禾谷缢管蚜的综合抗性 ,结果表明 ,8个小麦品种的抗蚜性强弱依次为 W6 (4 0 ) 2、小偃六号、NWAU34- 9、陕 16 7、陕 80 0 7、85(6 7) 2 4、81(2 8) 2 8、85(6 7) 15。抗性因素的分析表明 ,品种感蚜值与游离氨基酸总量呈负相关 ,在 17种游离氨基酸中 ,感蚜值与赖按酸和精氨酸的含量显著负相关 。By the method of stratum additional weight,the resistance of wheat varieties to Rhopalosiphum padi (L.) were evaluated The result showed that,the resistant sequence of 8 wheat varieties is W6(94)2,Xiaoyan No.6,NWAU34 9,Shann167,Shann8007,81(28)28,85(67)24,85(67)15.The analysis on resistant factors indicated that,infection degree of the aphis in wheat variety is negatively related to the total content of free amino acid,of 17 kinds of free amino acids,the infection degree of the aphis is negatively related to the content of Lys.or Arg.significantly ,and is positively related to the total content of carbonhydrate.

关 键 词：小麦 禾谷缢管蚜 品种抗性 多目标加权法 

分 类 号：S435.122.2[农业科学—农业昆虫与害虫防治] S432.21[农业科学—植物保护]