摘要
为了改良马铃薯栽培种对甲虫的抗性,在新疆马铃薯甲虫自然为害条件下,选择马铃薯甲虫高发地块,对马铃薯的5个原始栽培种、野生种的34份材料采用盆栽方式进行甲虫田间抗性评价。结果表明:通过鉴定试验发现34份鉴定材料的甲虫抗性在种间差别较大,种内的各材料在抗性水平上同样存在较大差异,这种差异可能源于遗传变异。S.pinnatisectmum和S.microdontum两个野生种田间具有抗虫性,并从其中共筛选出6份抗虫材料,这将为今后开展抗虫资源材料改良,合理利用野生资源进行抗虫育种提供材料保障。
In order to improve the resistance of potato cultivar against Leptinotarsa decemlineata, 34 varieties from five original cultivars and wild species were identified for resistance against Leptinotarsa decemlineata using naturally induced methods in the plot of Xinjiang where Leptinotarsa decemlineata occured seriously. The results showed that 34 varieties had great differences on resistance levels for intraspecific and interspecific, that may be due to genetic variation. 6 varieties were selected from S. pinnatisectmum and S. microdontum which had insect resistance. It would provide material guarantee for the improving of insect resource materials in the future and the developing of breeding work using wild resources reasonably.
出处
《黑龙江农业科学》
2014年第5期13-16,共4页
Heilongjiang Agricultural Sciences
基金
"十二五"国家科技支撑计划资助项目(2012 BAD02B05)
齐齐哈尔市科技攻关资助项目(NYGG-201201)
关键词
马铃薯
马铃薯甲虫
野生资源
抗虫性
potato
Leptinotarsa decernlineata
wild resources
insect resistance
