title: [Preliminary infection source of downy mildew of Corydalis yanhusuo W. T. Wang].
abstract: The downy mildew of Corydalis yanhusuo caused by Peronospora corydalis usually brings about devastating harm in Anhui Province. In the past, it was generally held that the spores in diseased remains buried in soil were the main source of preliminary infection. But, according to our test, it is the mycelia in tubers that are mainly the preliminary infections source.
authors.affiliation: Anhui Agricultural College, Hefei.
authors.forename: Q
authors.initials: Q
authors.lastname: Gao
authors.forename: G
authors.initials: G
authors.lastname: Li
authors.forename: Z
authors.initials: Z
authors.lastname: Wan
authors.forename: K
authors.initials: K
authors.lastname: Yang
authors.forename: X
authors.initials: X
authors.lastname: Cheng
authors.forename: J
authors.initials: J
authors.lastname: Tang
authors.forename: H
authors.initials: H
authors.lastname: Zhou
authors.forename: X
authors.initials: X
authors.lastname: Ju
mesh_terms: D009868:Oomycetes; D010935:Plant Diseases; D010946:Plants, Medicinal / Q000033:anatomy & histology / Q000254:growth & development / Q000382:microbiology*; D013172:Spores, Fungal