IN VITRO EFFECT OF FUNGICIDES ON DEVELOPMENT OF THE PATHOGEN OF Phytophthora parasitica var. nicotianae

Tashkoski, Petre and Gveroska, Biljana (2005) IN VITRO EFFECT OF FUNGICIDES ON DEVELOPMENT OF THE PATHOGEN OF Phytophthora parasitica var. nicotianae. Tobacco, 55 (11-12). pp. 249-256. ISSN 0494-3244

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Abstract

In vitro investigations were carried out in Phytopathological laboratory of Tobacco Institute-Prilep on the toxic effect of some fungicides in development of the fungus P. parasitica var nicotianae.
Results obtained in three trials confirmed the high fungistatic effect of Ridomil MZ 72 added in nutrient medium in a rate of 0,3%. In the first days of incubation, no fungus development appeared on nutrient medium. Mycelial growth was recorded after the 5-th day, progressing slowly up to the 12-th day. At the 15-th day, the final day of observation, a growth of 15,00 mm and 14,66 mm was recorded in the second and third trial, respectively.
Poor fungus development was recorded up to the 4-th day with chemicals Sandofan Z and Galben M8, but in the following days the growth was significantly faster compared to that in the variant Ridomil MZ 72.
The most rapid growth of the fungus was recorded with Previcur N and Cimozin S and this is the chemical that showed the lowest effectiveness. 15 days after incubation the growth of the colony of 80,00 mm, 83,33 mm was similar to that in the check variety (90,00 mm).
Accordingly, the highest toxicity among all investigated fungicides on mycelium growth on pure fungus culture was obtained with Ridomil MZ 72 based on metalaxyl.

Item Type: Article
Subjects: Scientific Fields (Frascati) > Agricultural Sciences > Agriculture, forestry and fisheries
Divisions: Scientific Tobacco Institute
Depositing User: Ms Biljana Jordanoska
Date Deposited: 03 Nov 2016 20:22
Last Modified: 03 Nov 2016 20:22
URI: https://eprints.uklo.edu.mk/id/eprint/385

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