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Digitalni repozitorijum Stomatološkog fakulteta u Pančevu
M23 Naučni članak

Seasonal Variation of Leaf Ecophysiological Traits of Iris variegata Observed in Two Consecutive Years in Natural Habitats with Contrasting Light Conditions

Zivkovic, Uros Miljakovic, Danijela Barisic-Klisaric, Natasa Tarasijev, Aleksej Avramov, Stevan iD
Archives of biological sciences · 2015 · vol. 67 · br. 4 · str. 1227–1236

Apstrakt

The amount and pattern of individual phenotypic responses to seasonal changes in environmental conditions were determined in clones of Iris variegata growing in differing light habitats. For the purpose of the study, 97 clonal plants of the rhizomatous herb I. variegata that experienced different light conditions in their two native habitats were selected: one along the top and slope of sand dunes and one in woodland understories. Two fully expanded leaves that had developed during spring, summer and fall in two consecutive years were sampled from each of these clones. Six leaf traits affecting the photosynthetic rate of a plant ? morphological (specific leaf area), anatomical (stomatal density) and physiological (total chlorophyll concentration, chlorophyll a/chlorophyll b ratio, carotenoid concentration, chlorophyll a/carotenoid ratio) exhibited significant plastic responses in the two different light habitats. To test whether these traits differ between exposed and shaded habitats as well as during different vegetation periods, we used the repeated model analysis of variance (ANOVA). Results of the repeated ANOVA revealed statistically significant effects of year, habitat and period of vegetation season. Patterns of changes during growing seasons were year-specific for almost all analyzed traits.

TipNaučni članak
M kategorijaRad u međunarodnom časopisu kategorije M23
Godina2015
IzdavačUniversity of Belgrade, University of Novi Sad
ISSN0354-4664
LicencaSva prava zadržana
VerzijaObjavljena verzija
ZbirkaNaučni članci

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