Korubin - Aleksoska, Ana (2008) ПРОУЧУВАЊА ЗА БРОЈОТ НА ГЕНИТЕ И НИВНОТО ДЕЈСТВО ВО НАСЛЕДУВАЊЕТО НА ПОВАЖНИТЕ КАРАКТЕРИСТИКИ КАЈ F1 ХИБРИДИТЕ НА ТУТУНОТ (INVESTIGATIONS OF NUMBER OF GENES AND THEIR EFFECT ON THE INHERITANCE OF SOME MORE IMPORTANT CHARACTERISTICS OF F1 HYBRIDS IN TOBACCO). Tutun/Tobacco, 58 (1-2). pp. 10-13. ISSN 0494-3244
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Abstract
Inheritance of quantitative characteristics from parental pairs in their progeny is conditioned by various effective factors presenting a group of genes (polygenes), the effect of which is estimated by diallel analysis. Investigations of quantitative characters (stalk height, leaf number per stalk and green yield per stalk), were made on four parental genotypes of tobacco: Burley - B-2/93, Suhum - S1 wirh pink flouer, Suhum S-2 with wait flouer and Prilep - P-84-FR with red flouer and their six diallel F1 hybrids. Crossings were made in 2006 and the final trial was set in 2007, on the field of Tobacco Institute-Prilep, in a randomized block design with four replications.
The aim of our investigations was to determine the level of inheritance of measurable characters through assessment of the effective factors: number of genes (k) and their additive (d) and dominant (h) effects, which will be a significant contribution to the quantitative genetics of tobacco. Analyses and assessments were based on the methods and mathematical models of B. I. Hayman, K. Mather and J.L. Jinks.
In all combinations, the additive effect was higher than the dominant one (d>h), implying that inheritance of uantitative characters is created mainly by the additive genes. Values for the effective factors are very low and insufficient to make their estimation. The highest grade for additive genes strength in the inheritance of stalk height was recorded in the Burley (B-2/93), and for the strength of dominant genes in Suhum (S-1 and S-2). The strongest effect of additive genes for the characters: number of leaves and green mass yield per stalk was recorded in Suhum (S-1 and S-2)
Results presented in the paper are of a great interest for tobacco breeding (Nicotiana tabacum L.), and the methods are applicable for many other cultures.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Tobacco, inheritance, number of genes (k), additive (d) and dominant (h) effects. |
| 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 09:05 |
| Last Modified: | 05 Apr 2020 09:05 |
| URI: | https://eprints.uklo.edu.mk/id/eprint/4849 |
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