New Zealand Journal of Crop and Horticultural Science abstracts

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Diallel analysis for traits of economic importance in globe artichoke (Cynara scolymus)

V. P. Cravero

CONICET
CC 14 (S2125ZAA)
Rosario, Santa Fe
Argentina
email: vcravero@fcagr.unr.edu.ar

F. S. Lopez Anido
P. D. Asprelli
E. L. Cointry

Department of Genetics
Rosario National University
CC 14 (S2125ZAA)
Rosario, Santa Fe
Argentina

Abstract  A breeding strategy for globe artichoke (Cynara scolymus) is suggested after General and Specific Combining Ability between several clones were estimated to determine the gene action for yield-related and morphological traits. Two sets of diallel crosses, without parents, using four selected clones in each were developed. A completely randomised design with three replications for each diallel cross was used. Significant differences between the mean values of several traits among both diallel sets were found. Most of the variables evaluated were primarily controlled by additive genetic effects. Therefore, simple recurrent selection would be effective for increasing the mean value of these variables.

Keywords  Cynara scolymus; general combining ability; specific combining ability; additive gene action; non-additive gene action; diallel crosses; clones; breeding strategy; seed multiplication; vegetative propagation

H03099; Received 23 October 2003; accepted 9 March 2004; Online publication date 15 June 2004
New Zealand Journal of Crop and Horticultural Science, 2004, Vol. 32: 159-165
0014-0671/04/3202-0159 $7.00 © The Royal Society of New Zealand 2004

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