THE MODE OF INHERITANCE OF QUANTITATIVE CHARACTERS AND HETEROTIC EFFECT IN F1 HYBRIDS IN A DIALLEL OF DIFFERENT TOBACCO TYPES

Aleksoski, Jane (2013) THE MODE OF INHERITANCE OF QUANTITATIVE CHARACTERS AND HETEROTIC EFFECT IN F1 HYBRIDS IN A DIALLEL OF DIFFERENT TOBACCO TYPES. Тутун / Tobacco, 63 (1-6). pp. 56-62. ISSN 0494-3244

Text (Genetics and selection of tobacco) Tobacco, 1-6, 2013 - 56-62.pdf - Published Version Download (552kB)

Abstract

The paper concerns the mode of inheritance and assessment of heterotic effect in six diallel F1 crosses of four parental genotipes (large – leaf variety Burley B – 2/93 and the oriental Suchum S1 with pink flowers, Suchum S2 with white flowers and Prilep P – 84), for the following characters: stalk without inflorescence, leaf number per stalk, middle belt leaf area, green mass yield and dry mass yield per stalk. The trial was set up in the field of Scientific tobacco institute – Prilep, in randomized blocks with four replications during 2007, 2008 and 2009 and traditional cultural practices were applied in tobacco growing.
The analysis of variance was used to determine statistically significant differences between parents and their hybrids for the characters investigated during the three – years period. Positive heterosis with poor heterotic effect was recorded in S1 x S2 hybrid for stalk height without inflorescence and for green/dry mass yields per stalk, while in S2 x P-84 only for height of the stalk without inflorescence. Negative heterosis with poor heterotic effect was recorded in hybrids S1 x P-84 for leaf number and for green/dry mass yields and S2 x P-84 for leaf number and green massyield per stalk. The low heterotic effect indicates that utilization of heterosis in investigated tobacco genotypes is without economical justification, but in the same time it points out to the eventual breeding activities for creation of new more superior varieties.
Keywords: tobacco NicotianatabacumL., diallel crosses, mode of inheritance, heterosis, heterotic effect.

Item Type:	Article
Subjects:	Scientific Fields (Frascati) > Agricultural Sciences > Agricultural biotechnology
Divisions:	Scientific Tobacco Institute
Depositing User:	Prof d-r. Jane Aleksoski
Date Deposited:	05 Jun 2026 08:04
Last Modified:	05 Jun 2026 08:04
URI:	https://eprints.uklo.edu.mk/id/eprint/11582

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