Original scientific paper

Phenodynamics of the most significant trees and shrub species in Arboretum Trsteno (Croatia)

Maja Kovačević ; Arboretum Trsteno Hrvatske akademije znanosti i umjetnosti, Trsteno, Croatia

Abstract

This paper presents an analysis of the phenodynamics of 60 taxa of trees and shrubs in Arboretum Trsteno (SE Adriatic coast, Croatia) in the period from February 1996 to February 1997. The plant geography spectrum has shown the predominance of South-East Asian species (31.7%) and the great share of spontaneous Mediterranean species (28.3%).
The length of the vegetation period for the observed species in 1996 ranged from 155 to 287 days. According to the summer and winter vegetation pause, two groups of species have been registered. The leafing-out phenological phase took place from April to May and showed differentiation into three time-groups.
It was noticed that the observed species gave feature to the matrix of vegetation only during the flowering period. Species were grouped according to flowering time into a few distinct seasonal aspects. On the basis of light- response and the length of day factor, three groups of plants might be distinguished: short-day, long-day and indifferent plants.
The phenodynamics of Arboretum is presented by a phenological activity index showing two annual peaks, the first occurring in May/June and the second in November/December.

Keywords

phenology; vegetation period; flowering; seasonal variations; phenological activity; Arboretum Trsteno; Croatia

Hrčak ID:

160644

URI

https://hrcak.srce.hr/160644

Publication date:

31.12.2000.

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