TRANSMISSION OF TOBACCO MOSAIC VIRUS AND SYMPTHOMS OF VIROSIS

Tashkoski, Petre and Gveroska, Biljana and Dimitrieski, Miroslav and Miceska, Gordana (2006) TRANSMISSION OF TOBACCO MOSAIC VIRUS AND SYMPTHOMS OF VIROSIS. Bulletin of Tobacco science and profession, 56 (11-12). pp. 217-224. ISSN 0494-3244

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Abstract

Tobacco mosaic virus (TMV) is the most widely distributed disease which causes severe
losses to tobacco economy.
It easily transmits mechanically, through performing various agrotecnhnical measures during
the growing period of tobacco, and most frequently during the harvest.
TMV is very stable virus with high infective ability. From other viruses attacking tobacco it
differs by is possibility to keep its infectivity in fermented tobacco for several months and years,
which is the main source of primary infection.
Intensity of attack is much higher in harvested plants compared to the unharvested ones.
In harvested plants it ranged from 0.00 % in resistant varieties to 54.80% in the standard
variety YV 125/3, and in unharvested plants it was the highest in the check variety P 12-2/1 - 8.18%.
The second estimation also revealed highest intensity of disease in standard varieties YV 125/3
(72.11%) among harvested plants and P 12-2/1 (9.09%) in unharvested plants.
In varieties P 11-46/65, P 301DH, P301N, YK 123/7, YJ 65-81/1 and YK 301/23 in both
variants (unharvested and harvested) there wer no symptoms of disease. These tobacco varieties
showed high level of resistance to the mosaic virus.
Resistance of the varieties was confirmed by artificial inoculation. Symptoms of disease
were manifested through occurrence of necrotic spots on leaf area, developed as a result of
hypersensitive reactions of host plant cells toward the parasite.
Results of investigation can be used by breeders in creation of varieties resistant to TMV.

Item Type:	Article
Subjects:	Scientific Fields (Frascati) > Agricultural Sciences > Agricultural biotechnology
Divisions:	Scientific Tobacco Institute
Depositing User:	Nit Eprints
Date Deposited:	28 Dec 2020 12:23
Last Modified:	28 Dec 2020 12:23
URI:	https://eprints.uklo.edu.mk/id/eprint/6016

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