Stomatal conductance reduction coefficient
nounPronunciation: /ˈstɒmətəl kənˈdʌktəns rɪˈdʌkʃən kəʊˈɪfɪʃənt/
A quantitative measure expressing the proportional decrease in stomatal opening (conductance) in response to increasing water stress intensity. This coefficient ranges from 0 to 1, where higher values indicate greater stomatal sensitivity to water deficit.
Plain English
A number showing how quickly a plant closes its leaf pores as water becomes scarcer.
Etymology & History
Usage
"The drought-tolerant cultivar exhibited a lower stomatal conductance reduction coefficient, indicating conservative water use strategy."
Style guide notes: Clearly distinguish coefficient value from absolute conductance measurements; always specify calculation methodology.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
How do high vs. low reduction coefficients indicate different drought strategies?
High coefficients indicate isohydric plants that close stomata quickly; low coefficients suggest anisohydric water-spending strategies.
What practical applications use stomatal conductance reduction coefficient data?
Agricultural breeding programs use it to select drought-tolerant cultivars and predict irrigation requirement reductions.
Why Test Candidates on This?
Important parameter for comparative drought tolerance assessment and developing predictive models of crop water availability responses.
Required skill level: Mid