吉林省粟瘟病菌生理小种代表菌株选择报告

THE SELECTION OF REPRESE NTATIVE STRAINS OF PHYSIOLOGICAL RACES OF MILLET BLAST FUNGUS IN JILIN PROVINCE

摘要:

用1979—1984年从全省各地区采集、分离的149个单孢分离菌,通过全国粟瘟病菌生理小种6个鉴别品种9年2—12次测试,筛选出稳定菌株30株。并对这些稳定菌株和部分致病性不完全一致的20个菌株做了室内产孢试验和对生产品种致病力的测定,从中选出致病性较稳定,产孢量较多,致病力较强的粟瘟病菌生理小种代表菌株10株和后备菌株6株,供谷子品种抗粟瘟病鉴定及其它试验应用。

Abstract:

Six Chinese differential varieties of the races of millet blast fungus (Piricularia setariae) used as tester for 2 to 12 times in nine years and thirty stable representative strains were selected from 149 monoconidial isolates collecteed and separated in all the areas of Jilin province during 1979-1984. In the meanwhile, these isolates and 20 isolates with different virulence were tested for the production of spore and the virulence to cultivars.
Ten representive strains which were comparatively stable in pathogenicity, produced more spores, with higher virulence and six secondary strains were selected in order to be supplied for the indentification of the resistance of millet varieties to millet blast and for other experiments.