Nom du corpus

Corpus Systématique Végétale

Titre du document

Shoot growth dynamics and the mode of competition of two rhizomatous Polygonum species in the alpine meadow of Mt. Fuji

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Clonal plants
  • Diffusion model
  • Polygonum cuspidatum
  • Polygonum weyrichii
  • Symmetric two-sided competition
Nom du fichier dans la ressource
Syst_veg6_v2_031469
Auteur(s)
  • Jun-ichirou Suzuki
Affiliation(s)
  • Department of Biology, Tokyo Metropolitan University, Minamiohsawa 1-1, 192-03, Tokyo, Japan
Résumé

The growth dynamics of shoot populations and the mode of competition between intra-clonal shoots of two rhizomatous species,Polygonum cuspidatum andPolygonum weyrichii, were investigated at the Houei crater (c. 2380 m a.s.l.) of Mt. Fuji. Three genetic individuals ofP. cuspidatum (large, medium and small) and five genetic individuals ofP. weyrichii were selected for this research. The growth dynamics of shoot populations were analysed using the diffusion model. InP. cuspidatum, linearG(t,x) functions (mean of absolute growth rates of shoots of sizex at timet in the diffusion model) with positive slopes were found in terms of shoot weight in three genetic individuals. The linearG(t,x) functions suggest that smaller-sized shoots were supported by means of physiological integration and not suppressed by larger-sized shoots. As in other clonal plant species, size-independentD(t,x) functions (variance of absolute growth rates of shoots of sizex at timet in the diffusion model) were found inP. cuspidatum. A similar tendency was also found in the five genetic individuals ofP. weyrichii. There was large variance of RGR in terms of shoot weight irrespective of values ofC r(t,x), defined as (total leaf area of shoots larger thanx at timet/total leaf area of all shoots), in both thePolygonum species. This means that there was a higher probability of growth for smaller shoots, suggesting that competition between shoots was symmetric (two-sided) in bothP. cuspidatum andP. weyrichii.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - cytologie, morphologie, systematique, floristique et evolution des vegetaux
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Palaeontology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Plant Science
Catégories WoS
  • 1 - science ; 2 - plant sciences
Identifiant ISTEX
A1AD94D409B6812D8F4CCA47DEC92EF3FE2C7798
Revue

Folia Geobotanica

Année de publication
1994
Présence de XML structuré
Non
Score qualité du texte
9.011
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-09HB7Q3J-R
Powered by Lodex 9.3.8