ВЛИЈАНИЕ НА ПОВРАТНИТЕ ВКРСТУВАЊА ВО ПОДОБРУВАЊЕ НА СВОЈСТВАТА КАЈ ТУТУНОТ (THE EFFECT OF BACKCROSS HYBRIDIZATION ON IMPROVING THE CHARACTERS OF TOBACCO)

Korubin - Aleksoska, Ana (2003) ВЛИЈАНИЕ НА ПОВРАТНИТЕ ВКРСТУВАЊА ВО ПОДОБРУВАЊЕ НА СВОЈСТВАТА КАЈ ТУТУНОТ (THE EFFECT OF BACKCROSS HYBRIDIZATION ON IMPROVING THE CHARACTERS OF TOBACCO). Tutun/Tobacco, 53 (1-2). pp. 3-11. ISSN 0494-3244

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Official URL: http://www.tobaccobulletin.mk/pdfs/vol%2053/Tutun%...

Abstract

Investigations were made with four cultivars of oriental tobacco (P 10-3/2, P-26, NS-72 and Smirna) and their diallel F1, F2, BC1 (P1) and BC1(P2) hybrids during 2000 in order to study the effect of backcross hybridization on some more important traits of tobacco. The experiment was set up on the field of Tobacco Institute-Prilep in randomized block with four re;plications. Measurements were made in the period of maximum tobacco expression and the data obtained were processed by variational-statistical method. The genetic variance and heritability (h2) components were assessed by the methods of Mather and Jinks (1971). The more profound investigation of tobacco cultivars gives possibilities to select the best lines from all combinations. By one or two backcross hybridization, the effect of parental genotypes could be determined in order to have a greater influence on improvement of the obtained hybrids. In our investigations, the best results were achieved in the increase of leaf number and dry mass yield per stalk in the progeny obtained in backcross hybridization with P-26. Heritability in all hybrids ranged between 95% and 99%, which indicates a high presence of genetic variance. It can be concluded therefrom that the progeny phenotype has a great similarity with the parental phenotype, i.e. the investigated traits have a high heritability.

Item Type: Article
Uncontrolled Keywords: Oriental tobacco, diallel hybrids, F1, F2, BC1 (P1), BC1(P2).
Subjects: Scientific Fields (Frascati) > Agricultural Sciences > Agriculture, forestry and fisheries
Divisions: Scientific Tobacco Institute
Depositing User: Prof. d-r. Ana Korubin - Aleksoska
Date Deposited: 05 Apr 2020 09:02
Last Modified: 05 Apr 2020 09:02
URI: http://eprints.uklo.edu.mk/id/eprint/4855

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