Authors
Maria Májeková, Jana Martínková, Tomáš Hájek
Publication date
2019/5
Journal
Functional Ecology
Volume
33
Issue
5
Pages
774-785
Description
  1. Assessing drought tolerance and the ability of plants to adjust to changes in available water resources is crucial for understanding current and future distributions of plant species. While turgor loss point (πtlp) has been recognized as a direct determinant of drought tolerance in woody plants, information on it for grassland species is largely missing.
  2. We first validated a rapid method to estimate πtlp for grassland species, using osmometry measurements (πtlp‐osm) of osmotic potential at full hydration (πo‐osm), originally proposed for woody species. We confirmed that πo‐osm was tightly positively related to πtlp measured by the classic pressure–volume curve (πtlp‐pv). Cell wall elasticity was not important in the maintenance of turgor and neither specific leaf area nor leaf dry matter content influenced πtlp.
  3. We then studied the relationship between πtlp‐osm measured under controlled conditions and species’ soil …
Total citations
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