CONTRIBUTION TO THE KNOWLEDGE OF WEEDS VEGETATION ALONG THE TISA EVERGLADE
Journal Title: Analele Stiintifice ale Universitatii Alexandru Ioan Cuza din Iasi, Serie noua, Sectiunea II a. Biologie vegetala - Year 2007, Vol 53, Issue 0
Abstract
In this paper, two vegetal associations with a nonnative character (Helianthetum tuberosi (Moor 1958) Oberd. 1967 and Reynoutrietum japonicae Görs 1974 corr. Hilbig 1995) are presented. These associations (less known in Romania), which are integrated in the alliance Senecion fluviatilis Tx. 1950, displace the native vegetal communities from the Tisa everglades on large areas.
Authors and Affiliations
C. SÎRBU, A. OPREA
PRELIMINARY ASPECTS REGARDING SOME PHYSICO-CHEMICAL AND BIOLOGICAL CHARACTERISTICS OF THE WATER BISTRIŢA RIVER (LOWER COURSE)
This paper aims at underlying some physico-chemical, chemical, and biological characteristics of the water in the Bistriţa River in the sector Piatra Neamţ – Podoleni. Field observations and physical – chemical and chemi...
THE ANATOMICAL STRUCTURE OF THE OVERGROUND VEGETATIVE ORGANS OF SAXIFRAGA ADSCENDENS L.
This paper presents the anatomical structure of the flowering stem, the rosette and cauline leaves of the biennial plant Saxifraga adscendens L. This plant was collected from the Bucegi Natural Park. The cross-sections a...
NOTES ON THE MORPHO-ANATOMY OF ACONITUM DEGENII GAYER
The paper is focused on some morpho-anatomy aspects of Aconitum degenii which belongs to Ranunculaceae family. The vegetal material has been preserved in ethylic alcohol 70% and then prepared after protocols specific to...
BUTOMUS UMBELLATUS MORPHO-STRUCTURAL CONSIDERATIONS ON ADAPTIVE PLASTICITY
This work points out a series of adaptive modifications of the species Butomus umbellatus L. as an answer to the variations of water factor. Being one of the plants evaluated as dominant in the Romanian part of the Danub...
RESEARCHES REGARDING THE DYNAMICS OF THE RESPIRATORY PROCESS IN RYE PLANTS PARASITIZED BY ARTIFICIAL INFECTION WITH VARIOUS KINDS OF ALKALOID STRAINS OF CLAVICEPS PURPUREA (FR.) TUL.
The intensity of the foliar respiration at the parasitized plants depends on several factors. In the same circumstances, under the same environmental conditions, different species have different respiratory intensi...