摘要
１９９０～１９９２年采用室内盆栽和大田接菌观察３个不同致病型代表菌株对水稻的成株期致病力，发现ＴｈＡ的代表菌株１４７号致病力最强。该菌株具菌核萌发快，菌株长势强，从接触稻株到病斑出现的潜伏期最短。还对品种、菌株、施肥量、密度等４个因素３个水平对病害发生发展的影响，以及田间病害发生扩展动态进行了研究。
Comparison study on pathogenicity of 3 isolates of R.solani belonging to 3 different pathogenic-types to rice adult-plant was conducted by artificial inoculation in pot-culture and the field in 1990-1992.The pathogenicity of No.147 isolate belongal to ThA is the strongest,which showed fast germination of the sclerotia, flourishing growth of the mycelia,and short latent period from inoculation to visible lesion.This paper also discussed the influence of rice varieties,isolates,planting density and manuring on disease development,and dynamic of disease development in the field.
出处
《西南农业学报》
CSCD
1995年第2期65-69,共5页
Southwest China Journal of Agricultural Sciences
基金
贵州省科学基金
