摘要
本文报道了对１９９１～１９９６年采自我国１６个省和自治区的５６０６份小麦条锈菌标样的研究结果，基本反映了这期间我国小麦条锈菌生理小种的变化情况。１９９１～１９９５年，条中２９号出现频率为１３．６％～３２．２％，居于首位，但已呈下降趋势，到１９９６年出现频率仅为５．２％，名列第８；１９９１～１９９２年条中２５号居第２位（３．６％～８．４％）；１９９３～１９９５年新命名的条中３１号（６．６％～１６．７％）和条中３０号（５．７％～７．９％）分别上升为第２和第３位，特别是条中３１号到１９９６年已跃居首位（１３．０％）。条中２１、２２、２３、２６、２８号等小种出现频率均较低，且有逐年下降趋势。１９９４～１９９６年Ｈｙｂｒｉｄ４６和水源１１致病类群的出现频率逐年上升，前者３年分别为１９．６％、３４．８％和３８．２％，后者３年分别为１２．２％、２０．９％和４６．６％。这２个致病类群内分化加剧，到１９９６年已分别分化为９和１２个类型。条锈菌已进入以条中３０号和３１号为代表的Ｈｙｂｒｉｄ４６和水源１１致病类群占优势的新时期。
Abstract Samples collected from 16 provinces
(including autonomous regions) in China during 1991-1996 identified on 17 differential hosts,
namely Trigo Eureka, Fulhard, Lutescens 128, Mentana, Virgilio, Abbondanza, Early premium,
Funo,Danish1 Jubilejina2, Fengchan3, Lovrin13, Kangyin655, Shuiyuan11, Zhong4, Lovrin10
and Hybrid46. During 1991-1995, CY29 was the first dominant race and the frequencies was 13.
6%-32.2%, but it has the decline tendency; from 1991-1993, CY25 was the second dominant
出处
《植物病理学报》
CAS
CSCD
北大核心
1999年第1期15-21,共7页
Acta Phytopathologica Sinica
