4个苜蓿品种对豌豆蚜的抗性评价  

Evaluation on resistance of 4alfalfa(Medicago sativa) cultivars to pea aphid(Acyrthosiphon pisum)

作　　者：武德功[1,2] 杜军利[1] 王森山[1] 胡桂馨[1] 贺春贵[1,3] 

机构地区：[1]甘肃农业大学草业学院草业生态系统教育部重点实验室中-美草地畜牧业可持续发展研究中心,甘肃兰州730070 [2]安徽科技学院植物科学学院,安徽凤阳233100 [3]甘肃省农业科学院,甘肃兰州730070

出　　处：《草业科学》2012年第1期101-104,共4页Pratacultural Science

基　　金：国家科技支撑计划项目(2006BAD04A04-01);苜蓿抗蚜新品种选育(036030);甘肃省教育厅科研项目(0902-10)

摘　　要：在大田和室内条件下,采用大量蚜虫侵染幼苗法评价4个苜蓿(Medicago sativa)品种对豌豆蚜(Acyrthosi-phon pisum)的抗性,以筛选出对豌豆蚜高抗的材料。结果表明,甘农5号(HA-3)在大田和室内的抗性植株百分率均显著高于其他品种,分别为50.3%和48.9%,而猎人河的抗性植株百分率在大田和室内均较低,分别为4.0%和4.3%;4个苜蓿品种在大田的抗性级别为甘农5号高抗,甘农3号、金皇后、猎人河均为感虫,室内抗性级别为甘农5号抗虫,金皇后、甘农3号低抗,猎人河感虫。The resistance of 4 alfalfa （Medicago sativa） cultivars to pea aphid （Acyrthosiphon pisum ） was evaluated by mass-infesting young seedlings in the field and lab to select high resistant cultivars to pea aphid. The results of this study showed that the Gannong No. 5（HA-3）showed the strongest resistance and its percent of resistant plants accounted for 50. 3% and 48. 9% in the field and lab experiments, respectively. The Hunter River showed a poor resistance and its percent of resistant plant was only 4.0% and 4.3% in the field and lab experiments, respectively. The field experimental results showed that Gannong No. 5 was high resistance cultivar, and Gannong No. 3, Golden Empress and Hunter River were susceptible cultivars; the lab experimental results showed that Gannong No. 5 was high resistance cultivar, and Gannong No. 3 and Golden Empress were low resistance cultivars, and Hunter River was susceptible cultivar.

关 键 词：苜蓿品种 豌豆蚜 抗虫性 危害级别 抗性级别 

分 类 号：S541.9[农业科学—作物学]