华北农学报2016，Vol.31Issue(4)：130-137,8.DOI:10.7668/hbnxb.2016.04.022
黑龙江省稻瘟病生理小种及品种资源抗性鉴定
Physiological Races of Rice Blast in Heilongjiang Province and Species Identification of Resistance to Resource
摘要
Abstract
Blast resistance of rice varieties in Heilongjiang Province in order to clear resource,mining germ-plasm resources,timely understanding of groups of physiological variation of Heilongjiang Province.Useing the Chi-nese name of physiological races method,by spraying bacteria identification at the seedling stage.The races of rice blast in Heilongjiang Province from 2013 to 2014 can be divided into 7 groups of 42 physiological races,in which the dominant races were ZD5 and ZD7 ,and frequency of occurrence was 19.77% and 12.21 %,respectively.The to-tal frequency was 31 .98%.The result of resistance test in seedling showed that 14 accessions had broad resistance spectrum,these accessions with 2 -7 rice blast resistance genes has been identified,The 29 combinations,such as suijing 12 and Hejiang 23 (Pi9,Pi20,Pi33,Pi54,Pik),Mudanjiang 26 and Longjing 31 (Pi9,Pi20,Pi33,Pi54, Pita,Pik)and Mudanjiang 26 and Hejiang 23 (Pi9,Pi20,Pi33,Pi54,Pik)and so on had better effect of blast re-sistance on breeding production.These comparisons have the quality of,enhancing the level of resistance and broad-ening the spectrum of resistance.The combinations interfered with Longjing 31 and other 9 materials had better re-sistance to rice blast.14 accessions were base materials for multiple resistance genes aggregated in breeding.There may be other unknown genes or new genes in some of the broad spectrum resistant materials,such as Kendao 15, Longjing 23 and Mudanjiang 25 which are containing 2 genes identified in this study,can be used as the test materi-als in further identification and finding resistance genes.关键词
稻瘟病/生理小种/种质资源/稻瘟病抗性/抗性基因Key words
Rice blast/Physiological race/Germplasm resources/Blast resistance/Resistance gene分类
农业科技引用本文复制引用
辛威,王敬国,孙健,刘化龙,郭丽颖,姜思达,许天宇,赵宏伟,邹德堂..黑龙江省稻瘟病生理小种及品种资源抗性鉴定[J].华北农学报,2016,31(4):130-137,8.基金项目
黑龙江省重大科技招标项目 （）
