Quantitative parameters of some burley tabacco traits
1999
Butorac, J. | Beljo, M. (Tobacco Inst., Zagreb (Croatia)) | Vasilj, D. | Kozumplik, V.
The purpose of this study was to determine manner of inheritance, heritability, heterosis and inbreeding in burley tobacco for days to flowering, topping height, number of leaves, yield and grade index. Four parental cultivars and their F1, F2, Bc1 and Bc2 progenies were studied in a four-year experiment. The experiment was organized as a RCBD with four replications. Larger nonadditive, than additive, variance was found for all the studied traits. Positive heterosis in F1 was found for topping height, number of leaves and yield, and negative for days to flowering and grade index. Also in F2, inbreeding was found for all the traits for which the positive heterosis in F1 was found. Distribution of parental genotypes along the expected regression line showed genetic divergence of the parental cultivars.
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