Korubin - Aleksoska, Ana and Arsov, Zlatko and Miceska, Gordana and Gveroska, Biljana and Aleksoski, Jane and Bebic, Zarko (2014) DIALLEL CROSSES TRIAL – THE BASIS FOR DETECTION OF RESISTANCE TO DISEASES IN TOBACCO. Тутун/Tobacco, 64 (7-12). pp. 3-12. ISSN 0494-3244
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Investigations were made with ten varieties of tobacco types : Prilep (P- 23 , P- 76 , P- 66-9/7 , P-84), Yaka (YK
10-7/1), Djebel (Xanthe, XDj-M), Basmak (MB-3), Samsun (SM-1), Sirdili (SM-LL) and Virginia (MV-1) and
their 45 diallel crosses for resistance to diseases, with an emphasis on black shank - Phytophthora parasitica var.
nicotianae. The trial with parental genotypes and their hybrids was set up in 2011, 2012 and 2013 at the Experimental field of the Scientific Tobacco Institute - Prilep in randomized block design with three replications. Traditional agricultural practices were applied during the growing season. The resistance/susceptibility degree was
estimated according to a scale recommended by FAO.
The aim of this paper is the detection of resistance to black shank and creation of resistant lines, using diallel
analysis to obtain a knowledge on the genetics of this disease.
The highest resistance to the disease was recorded in YK 10-7/1 and SM-LL, while the varieties MV-1 and P-76
showed to be the most susceptible. The highest resistance in the diallel was recorded in the crosses where one of
the parents was YK 10-7/1, which indicates a possession of dominant gene of resistance. In the process of breeding, the method of Back-cross hybridization was used in order to increase the varieties resistance to the black shank
disease.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | tobacco (Nicotiana tabacum L.), diallel crosses, Back-cross hybridization, resistance, black shank (Phytophthora parasitica var. nicotianae). |
| Subjects: | Scientific Fields (Frascati) > Agricultural Sciences > Agriculture, forestry and fisheries |
| Divisions: | Scientific Tobacco Institute |
| Depositing User: | Prof. d-r. Ana Korubin - Aleksoska |
| Date Deposited: | 03 Apr 2020 08:17 |
| Last Modified: | 03 Apr 2020 08:17 |
| URI: | https://eprints.uklo.edu.mk/id/eprint/4771 |
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