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    Description

    The objective of this study was to quantify the relationship between vulnerability to cavitation and vessel diameter within a species. We measured vulnerability curves (VCs: percentage loss hydraulic conductivity versus tension) in aspen stems and measured vessel-size distributions. Measurements were done on seed-grown, 4-month-old aspen (Populus tremuloides Michx) grown in a greenhouse. VCs of stem segments were measured using a centrifuge technique and by a staining technique that allowed a VC to be constructed based on vessel diameter size-classes (D).

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    Citation

    Cai, Jing; Tyree, Melvin T. 2010. The impact of vessel size on vulnerability curves: data and models for within-species variability in saplings of aspen, Populus tremuloides Michx. Plant, Cell & Environment. 33: 1059-1069.

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    Keywords

    Populus tremuloides, air-seeding hypothesis, pit area hypothesis, vessel diameter, Weibull functions

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