Plant Soil Environ., 2004, 50(4):162-167 | DOI: 10.17221/4078-PSE

Study of inheritance of some agronomic and morphological traits in burley tobacco by graphic analysis of diallel cross

J. Butorac, J. Beljo, J. Gunjača
1 University of Zagreb, Faculty of Agriculture, Croatia
2 Tobacco Institute Zagreb, Croatia

The mode of inheritance of yield, topping height, leaf number, days to flowering, leaf length and width was studied by means of graphic analysis in a half diallel cross test of four burley tobacco varieties (Saturn, TN 86, Bs 92 and Bols 100) in 1998 and 1999. The trial was set up according to the RCBD at four replications in the experimental field of Tobacco Institute Zagreb in Pitomača. Overdominance in inheritance of all studied traits, except leaf length and width in 1998, was found by the graphic method. No interallelic interaction and epistasis were present as seen from testing regression coefficients for all investigated traits and years. The distribution of parental genotypes on a scatter diagram along the expected regression line points to the genetic divergence of the parents. Parent Bs 92 appeared to have the most dominant alleles for yield and leaf length and parent Saturn for topping height, leaf number and leaf width.

Keywords: Nicotiana tabacum L.; burley; agronomic and morphological traits; graphic analysis

Published: April 30, 2004  Show citation

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Butorac J, Beljo J, Gunjača J. Study of inheritance of some agronomic and morphological traits in burley tobacco by graphic analysis of diallel cross. Plant Soil Environ. 2004;50(4):162-167. doi: 10.17221/4078-PSE.
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