Results 141 to 150 of about 62,192,337 (220)

Sequential Outlier Detection in Nonstationary Time Series

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT A novel method for sequential outlier detection in nonstationary time series is proposed. The method tests the null hypothesis of “no outlier” at each time point, addressing the multiple testing problem by bounding the error probability of successive tests, using extreme‐value theory. The asymptotic properties of the test statistic are studied
Florian Heinrichs   +2 more
wiley   +1 more source

Linking drought strategy to climate‐of‐origin in a widespread C4 grass: hydraulic traits, xylem anatomy and stomatal behaviour in Themeda triandra

open access: yesNew Phytologist, EarlyView.
Climate‐of‐origin of Themeda triandra populations used in this study. Summary Hydraulic, stomatal, and anatomical traits strongly influence plant performance under drought, but the extent to which these trait‐types are coordinated and relate to climate‐of‐origin remains vastly underexplored in herbaceous species relative to woody plants.
Vinod Jacob   +8 more
wiley   +1 more source

Water Released From Vessel Embolism May Temporarily Halt Further Embolism in Tropical Dipterocarp Trees

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT The formation of air bubbles in the xylem, known as embolism, reduces hydraulic conductivity and can ultimately lead to catastrophic failure of a tree's water transport system. When a vessel embolises, it releases water into the surrounding xylem tissue.
Arne Scheire   +15 more
wiley   +1 more source

Extreme Polyploidy Reveals Functional Trade‐Offs in Plant Drought Responses

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Polyploidy shapes plant physiology and anatomy, yet the extent to which different ploidy levels influence drought responses remains unclear. Here, we investigated how ploidy affects cell‐level coordination and functional traits associated with water transport and retention.
Javier López‐Jurado   +5 more
wiley   +1 more source

Divergent structure–function coordination shapes leaf thermal tolerance in Mediterranean tree species

open access: yesPlant Biology, EarlyView.
Tcrit (critical temperature) may reflect early, adaptive photoprotective downregulation of PSII in Quercus ilex, whereas in Acer campestre and Fraxinus ornus, it may more closely correspond to the onset of thermal PSII vulnerability. Abstract Increasing temperatures impair photosynthetic apparatus by damaging photosystem II (PSII) efficiency.
L. Friulla   +3 more
wiley   +1 more source

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