Components of genetic variation for cut-flower yield in the Davis Population of Gerbera |
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| Authors: | James Harding Dana Drennan T G Byrne |
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| Institution: | (1) Department of Environmental Horticulture, University of California, 95616 Davis, California, USA |
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| Abstract: | Summary Genetic variances for cut-flower yield in Gerbera hybrida were partitioned into additive and dominance components. Mean additive variance was 37.3 with a standard error of 12.9. Mean dominance variance was 12.7 with a standard error of 32.6. The dominance ratio was 0.34. Narrow sense heritability, estimated from these components of variance, averaged 0.42 with a standard error of 0.13. Heritabilities estimated from parent-offspring regression averaged 0.25. Gain from selection was less then expected; realized heritabilities were approximately 0.20. |
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| Keywords: | Gerbera hybrida gerbera heritability additive variance inbreeding depression dominance ratio |
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