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Type of publication: conference paper
Type of publication (PDB): Tezės kituose recenzuojamuose leidiniuose / Theses in other peer-reviewed publications (T1e)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Baležentienė, Ligita
Title: Fluorescence traits of invasive species in Lithuania
Is part of: Agrosym 2017 [elektroninis išteklius] : VIII International Scientific Agriculture Symposium, Jahorina, October 05-08, 2017, Bosnia and Herzegovina : book of abstracts / University of East Sarajevo [et al.]. East Sarajevo : Faculty of Agriculture, 2017
Extent: p. 876-876
Date: 2017
Note: 1 elektroninis optinis diskas (CD-ROM)
Keywords: Fluorescence parameters;Invasive plant species
ISBN: 9789997663290
Abstract: Some worldwide invasive plant species spread successfully throughout natural and semi-natural habitats in Lithuania. Accordingly, measures have been strongly recommended to prevent the introduction of such species and their spreading to new areas, or to manage unwanted populations. The proliferation of invasive species abundancy in new environments indicates a good supply of resources at physiological levels, viz. photosynthesis. Therefore, the assessment of chlorophyll fluorescence as a non-invasive intrinsic investigation of photosynthesis can give detailed information and be applied for understanding of invasive species adaption to a new environment. The research was aimed at the evaluation of the fluorescence parameters of invasive plant species (Fallopia sachalinensis (F sach), Heracleum sosnovskyi (H sasn), Rumex confertus (R conf)), the indicators of their physiological acclimation to a new environment, by identifying traits that could explain their success in terms of invading new territories. Fluorescence gains were measured in situ at the different growth stages during the vegetation period of invasive species in 10 replications using a light-adapted pulse-amplitude modulation method. The main parameters of the photosynthetic system II (PSII), e.g., fluorescence yield (Fs) in the light and maximal fluorescence (Fms) during the light flash were recorded in and used to determine the quantum yield of electron transport (Y). Between investigated species significantly (p<0.000) higher means of Fs, the index of photosynthetic excitation in light, and Fms, the index of efficiency of PSII, were observed in light-adapted leaves of H sosn (412.7 and 399.32 μmol m-2 s-1) and F sach (399.32 and 1726.90 μmol m-2 s-1). [...]
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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