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International Society for Horticultural Science

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ISHS Acta Horticulturae 508: XIX International Symposium on Improvement of Ornamental Plants

CROSS COMPATIBILITY BETWEEN CHRYSANTHEMUM (DENDRANTHEMA GRANDIFLORUM) AND DENDRANTHEMA SPECIES NATIVE TO JAPAN

Authors:   S. Fukai, T. Nagira, M. Goi
Keywords:   Cross compatibility, Dendranthema, reciprocal cross
DOI:   10.17660/ActaHortic.2000.508.63
Abstract:
Reciprocal crosses between chrysanthemum (Dendranthema grandiflorum) and ten other Dendranthema species (D. arcticum subsp. maekawanum, D. boreale, D. crassum, D. indicum, D. japonicum, D. ornatum, D. occidentali-japonense var. ashizuriense, D. pacificum, D. yoshinaganthum, D. zawadskii var. latilobum) native to Japan were performed. The results showed that the reciprocal crosses between chrysanthemum and other species are possible when the appropriate genotype is carefully chosen. Hybrid progenies showed a wide range of variations in the flowers. The hybrids required shorter days to flower than native species.