[article]
| Titre : |
Floral and reproductive biology of gynodioecious Dianthus superbus L. var. superbus (Caryophyllaceae) |
| Type de document : |
Imprimé |
| Auteurs : |
Takashi Sugawara ; A. Nakamura ; M. Kanbayashi ; H. Hoshi ; M. Mikami |
| Année de publication : |
1994 |
| Article en page(s) : |
23-31 |
| Langues : |
Anglais (eng) |
| Catégories : |
[CBNPMP-Thématique] Biologie de la reproduction
|
| Mots-clés : |
Dianthus superbus L. |
| Résumé : |
Two populations of Dianthus superbus L. var. superbus were investigated in Aomori Prefecture to determine the extent of differences between hermaphrodite and female plants in floral morphology, reproductive ability of the flowers, and fruit and seed set in the field. The hermaphrodite flowers were protandrous, but partially self-compatible in pollinalion experiments, and morphologically characterized by larger petals and a longer calyx tube. The female flowers had smaller petals, shorter filaments, and abortive anthers. No significant difference was found between the genders in ovule number per flower, fruit set percentage, and in the kinds of insects visiting the flowers. However, a notable difference in flowering phenology was found between the two different types of flowers ; the stigmas of the female flowers mature earlier than stigmas in hermaphrodite flowers, and the flowering period of female flowers is obviously longer than for hermaphrodite flowers. Earlier maturation of the stigma and longer female flowering may enhance the chance of pollination in female flowers. However, it was revealed from the field observations that seed set percentages in hermaphrodite flowers were significantly higher than in female flowers. |
| Lien pérenne : |
DOI : 10.18942/bunruichiri.KJ00001079027  |
| Permalink : |
https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=137316 |
in Acta Phytotaxonomica et Geobotanica > 45 (1) (1994) . - 23-31
Sugawara, Takashi, Nakamura, A., Kanbayashi, M., Hoshi, H., Mikami, M.
1994
Floral and reproductive biology of gynodioecious Dianthus superbus L. var. superbus (Caryophyllaceae).
Acta Phytotaxonomica et Geobotanica, 45(1): 23-31.
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