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2007, vol. 44, iss. 1, pp. 159-167
Mode of inheritance and phenotyp1c variance. components of major agronomic traits in red clover (Trifolium pratense L)
aInstitute of Field and Vegetable Crops, Novi Sad
bUniversity of Belgrade, Faculty of Agriculture
cUniversity of Novi Sad, Faculty of Agriculture

Keywords: Trifolium pratense L; quantitative traits; diallel cross; mode of inheritance; dominant and additive gene effects; heritability; coefficients of genetic and phenotypic variation
A diallel cross including five divergent red clover genotypes (two varieties: Junior and Diana, and three populations: Vlaška, BL-3 and M-ll) has been used in this study. The obtained progenies were tested for stem length, yield of green mass per plant, beginning of flowering and persistence (estimates of plants surviving in the third year: 1 - 9). These traits were analyzed for mode of inheritance, gene effects and heritability. The analysis of phenotypic variance showed that the additive gene action played the dominant role in the inheritance of stem length and yield of green mass per plant. Similar importance of the additive and non-additive components of genotypic variance and low values of the narrow-and wide-sense heritability (hČ = 22.64 % and h£= 41.51 %, respectively) were established for the inheritance of persistence, indicating an increased influence of environmental factors in the inheritance of this trait. Higher importance of the dominant gene action was found only for the inheritance of the beginning of flowering in 2001.
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article language: Serbian
document type: Original Scientific Paper
published in SCIndeks: 08/09/2007