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Autor(i)/Author(s): Dagmar Hillová, Magdaléna Takácsová, Helena Lichtnerová

Názov/Title: Stomatal response to water stress in herbaceous perennials

Zdrojový dokument/Source: Plants in Urban Areas and Landscape

Typ dokumentu/Document Type: Scientific paper

ISBN: 978-80-552-1262-3


Vydavateľ/Publisher: Slovak University of Agriculture in Nitra

Rok, strany/PY, pages: 2014, 52-56

Publikované online/Published on-line: 2015-01-20

Jazyk/Language: eng

Abstract: The stomatal conductance, total leaf area, specific leaf area (SLA), relative water content (RWC), leaf dry matter content, total chlorophyll (Chl), total carotenoid content were measured during drought treatment on Brunnera macrophylla and Stachys macrantha. Drought treated plants showed great tolerance to levels of drought, avoiding desiccation by decreasing stomatal conductance (B. macrophylla by 66.4%, and S. macrantha by 76,4%). SLA of Brunnera macrophylla significantly decreased by 14.7%, the leaf area significantly decreased by 54.4% (Brunnera macrophylla) and by 72.3 (Stachys macrantha). Drought stress decreased total chlorophyll content by 18.2% (Brunnera macrophylla) and by 20.6% (Stachys macrantha). The carotene content was found to increase with drought treatment of Brunnera macrophylla (by 22.1%. The better adaptive mechanisms on drought stress show B. macrophylla. S. macrantha is less drought resistant plant.

Keywords: herbaceous perennials, stomatal conductance, water stress, drought, SLA, chlorophyll, carotenoid, RWC

Práva/Rights: Act on copyright and rights related to copyright (Copyright Act) as amended (consolidated version), Slovak Republic; Creative Commons Attribution 4.0 Licence
Creative Commons License
Toto dielo je publikované pod/This work is licensed under a Creative Commons Attribution 4.0 International License.