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URL: http://jcb.sanru.ac.ir/article-1-497-en.html
Leptosphaeria maculans causes blackleg disease on Brassica oilseedcrops, which globally is one of the great threats for oilseed production. In order to determine virulence types of this fungi, several isolates were collected from canola fields in Mazandaran and Golestan provinces, Totally 12 isolates were selected and tested by three standard (definitional) cultivars including Westar, Quinta and Glacier in which two virulence types including PGT and PG2 were identified. In order to screen some existence local and some new canola genotypes, 24 genotypes of B. rapa, B. napus, B. juncea and B. nigra species were tested against PGT and PG2 isolates. As a result, among tested genotypes, Option and Champlain cultivars were resistance but PF and Adriana were moderate resistance to PG2 virulence type. In addition, Option and Champlain cultivars were moderate resistance to PGT virulence type of the disease.
Received: 2016/01/9 | Revised: 2019/08/25 | Accepted: 2016/01/9 | Published: 2016/01/9
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