Pathogenicity of Helminthosporium rostrata on rice varieties widely grown in Morocco
Journal: International Journal of Environment, Agriculture and Biotechnology (Vol.2, No. 2)Publication Date: 2017-03-10
Authors : Nawal Imrani; Hinde Boudoudou; Afifa Mouria; Jihane Touati; Amina Ouazzani Touhami; Rachid Benkirane; Allal Douira;
Page : 1003-1006
Keywords : Rice; Helminthosporium rostrata; symptoms; pathogenicity.;
Abstract
The plants of rice varieties (Arco, Thaibonnet and Elio) were inoculated with three isolates of Helminthosporium rostrata (HR1 HR2 and HR3), isolated for the first time in Morocco from the rice seed of Taibonnet variety at the end of the growing season. The results obtained showed that all the isolates are able to induce the disease on rice plants and sporulate on the foliar lesions. HR1, HR2 and HR3 was respectively the most pathogenic on Elio (I.C = 113), Arco (I.C = 212.5), and Taibonnet (130.48). The symptoms induced by the isolates are similar to those induced by Helminthosporium sativum on rice.
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