ISHS Acta Horticulturae 205: Symposium on the Development of New Floricultural Crops, XXII IHC
THE USE OF A SELECTION INDEX TO IMPROVE GERBERA CUT-FLOWERS |
| Authors: | J. Harding, T. Byrne, D. Drennan |
| Abstract:
A selection index was derived for cut-flower yield, consumer-rating, and vase-longevity as a function of phenotypic and genetic covariances of the characters. It was used to select parents for generations 8, 9, and 10 in the Davis Population of gerbera. Parent-offspring heritability of the index was 0.301. Cut-flower yield and vase-longevity responded to the index selection, but consumer-rating did not. The use of selection indices in flower crop breeding was discussed. | |
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