Full TGIF Record # 7435
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Author(s):Frandsen, K. J.; Honne, B. I.; Julén, G.
Author Affiliation:Frandsen: Department of Crop Husbandry and Plant Breeding, Royal Veterinary and Agricultural University, Copenhagen, Denmark; Honne: Institute of Genetic and Plant Breeding, Agricultural University of Norway, ^DoAs, Norway; Julén: Swedish Seed Association, Svalöf, Sweden
Title:Observations on the inheritance of resistance to Drechslera dictyoides (Helminthosporium dict. Drechsl.) in a population of meadow fescue (Festuca pratensis Huds.)
Source:Acta Agriculturae Scandinavica. Vol. 31, No. 1, 1981, p. 91-99.
Publishing Information:Stolkholm: Scandinavian Agricultural Research Workers Assn. and the Royal Swedish Academy of Agriculture
# of Pages:9
Keywords:TIC Keywords: Festuca; Pyrenophora; Genetics; Heritability; Drechslera dictyoides
Abstract/Contents:Randomly selected clones 1-11 from a population of OEtofte III were crossed with clones 12-22, using the North Carolina design 2 diallel. Analysis of data on infection by D. (Pyrenophora) dictyoides indicated that clones 5, 8, 11, 16, 17, 18 and 19 had a relatively high number of recessive alleles (clones 5, 16 and 18 had high scores for fungal attack). Clones 3, 6, 9, 14 and 15 had a relatively high number of dominant alleles (clones 6, 9, 14 and 15 had low scores for attack). An average dominance effect in the direction of resistance was apparent in group 12-22 and possibly occurred in group 1-11 but with a qualitative difference in genetic constitution between the two groups. The existence of additive and nonadditive genetic effects was indicated. Narrow-sense heritability for resistance was 0.49.
Language:English
References:10
Note:Figures
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Frandsen, K. J., B. I. Honne, and G. Julén. 1981. Observations on the inheritance of resistance to Drechslera dictyoides (Helminthosporium dict. Drechsl.) in a population of meadow fescue (Festuca pratensis Huds.). Acta Agriculturae Scandinavica. 31(1):p. 91-99.
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