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【目的】对2012年采自甘肃省和青海省大麦(青稞)上的条锈菌进行了专化型鉴定和致病类型测定,并选用甘肃省和青海省的16份大麦上的条锈菌和11份小麦上的条锈菌对27份大麦品种进行了苗期致病性测定.【方法】采用涂抹接种及撒孢子粉接种的方法.【结果】16份大麦条锈菌标样均为大麦条锈菌小麦专化型,其致病类型鉴定为贵22-9、贵22-56、贵22-82、贵22-91、水11-13、水11-13(中四感)、水11-102、水11-157、水11-200、水11-203和小麦条锈菌5个未归类型。大麦条锈菌对大麦品种‘果洛’‘藏青25’‘昆仑1号’‘康青3号’‘昆仑12号’的毒性频率分别为56.25%、37.50%、25.00%、62.50%、21.43%,小麦条锈菌对大麦品种‘果洛’‘藏青25’‘昆仑1号’‘康青3’‘昆仑12号’的毒性频率分别为36.36%、18.18%、54.54%、45.45%、9.09%.【结论】大麦品种‘果洛’‘康青3号’‘藏青25’‘昆仑1号’和‘昆仑12号’可被采自大麦和小麦上的条锈菌侵染,为共同感病寄主.
【Objective】 Species-specific identification and pathogenicity determination of stripe rust in barley (barley) collected from Gansu and Qinghai provinces in 2012 were carried out and 16 stripe rusts on barley were selected from Gansu and Qinghai provinces And the pathogen of 27 barley cultivars were tested by the pathogen of 11 stripe rust on wheat. 【Method】 The methods of inoculation and sporulation were used. 【Result】 The results showed that all the 16 barley stripe rust samples were Barley stripe rust wheat specialized type, the pathogenic type identified as expensive 22-9, expensive 22-56, expensive 22-82, expensive 22-91, water 11-13, water 11-13 (Sense), Water 11-102, water 11-157, water 11-200, water 11-203 and wheat stripe rust. The virulence of barley stripe rust was 56.25%, 37.50%, 25.00%, 62.50% and 21.43% for barley varieties ’Guoluo’, ’Nangqing 25’, ’Kunlun 1’, ’Kangqing 3’ and ’Kunlun 12’ The virulence of wheat stripe rust was 36.36%, 18.18%, 54.54%, 45.45% and 9.09% for barley varieties ’Guoluo’, ’Nangqing 25’, ’Kunlun 1’ and ’Kangqing 3’ and ’Kunlun 12’ . 【Conclusion】 Barley varieties ’Guoluo’, ’Kangqing 3’, ’Zainqing 25’, ’Kunlun No. 1’ and ’Kunlun No. 12’ can be infected by stripe rust fungi collected from barley and wheat, Host.