Transpiration efficiency
nounPronunciation: /ˌtrænspɪˈreɪʃən ɪˈfɪʃənsi/
The ratio of biomass produced to the amount of water lost through transpiration, reflecting how effectively plants use available water. Higher transpiration efficiency indicates greater drought tolerance and improved productivity under water-limiting conditions.
Plain English
The amount of plant growth achieved per unit of water lost through leaf pores.
Etymology & History
Usage
"Crop varieties with high transpiration efficiency produce more grain per millimeter of water received."
Style guide notes: Always specify the measurement period and growth conditions when reporting transpiration efficiency values.
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Frequently Asked Questions
Why is transpiration efficiency important for agriculture?
It identifies plant varieties that maximize yield while conserving limited water resources in arid climates.
How is transpiration efficiency measured in research?
Scientists calculate the ratio of biomass accumulation to total water loss over a growth period.
Why Test Candidates on This?
Commonly assessed in agronomy and plant breeding evaluations for drought-tolerant varieties.
Required skill level: Mid