Cavitation Resistance Index
nounPronunciation: /kævɪˈteɪʃən rɪˈzɪstəns ˈɪndeks/
A quantitative measure of a plant's ability to withstand air bubble formation in xylem vessels without experiencing hydraulic failure during drought stress. Higher indices indicate greater capacity to maintain water transport despite tension-induced embolism.
Plain English
A measure of how well a plant's water-conducting tubes can resist air bubbles that form during dry conditions.
Etymology & History
Usage
"Species with higher cavitation resistance indices survived the severe drought better than susceptible species."
Style guide notes: Always specify measurement units or methodology when citing specific index values in research.
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Frequently Asked Questions
Why is cavitation resistance important for plants?
Cavitation causes xylem dysfunction and water transport failure, leading to plant death in drought.
How is cavitation resistance index measured?
Through techniques like acoustic emissions, air injection, or centrifugal methods on plant stems.
Why Test Candidates on This?
Critical assessment metric in plant hydraulics and forest ecology research on climate stress adaptation.
Required skill level: Senior