Variations in flower morphology and pigments in Rhododendron kiusianum makino endemic to Kuju and Aso Mountains and their surrounding areas

Citation
I. Miyajima et al., Variations in flower morphology and pigments in Rhododendron kiusianum makino endemic to Kuju and Aso Mountains and their surrounding areas, J JPN S HOR, 70(1), 2001, pp. 108-114
Citations number
2
Language
GIAPPONESE
art.tipo
Article
Categorie Soggetti
Plant Sciences
Journal title
JOURNAL OF THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE
ISSN journal
0013-7626 → ACNP
Volume
70
Issue
1
Year of publication
2001
Pages
108 - 114
Database
ISI
SICI code
0013-7626(200101)70:1<108:VIFMAP>2.0.ZU;2-M
Abstract
The variations in flower morphology and flavonol pigment composition in the petals of Rhododendron kiusianum endemic to Kuju and Aso Mountains and the ir surrounding areas were investigated. A typical R kiusianum plant which grows in the Kuju Mountains seems well-ad apted to severe climatic conditions, such as alpine temperatures and strong winds, as well as acid soil and the presence of sulfurous acid gas. Althou gh the species is also distributed at the top of Mt. Yufudake and Aso Mount ains, the distributional areas of this species are separated from the other crosscompatible azalea species, such as R. kaempferi, by a summergreen for est or an open field, respectively. Flower colors of individuals growing on Mt. Haneyama varied widely, nearly all having prominent blotches on their petals. The composition of flavonols in their petals also ranged widely. Fr om these findings, we conclude that the population at Mt. Haneyama seems to be the result of natural crossing between R. kiusianum and R. kaempferi.