Waterlogging stress
nounPronunciation: /ˈwɔːtərˌlɒɡɪŋ strɛs/
Abiotic stress resulting from prolonged soil saturation that restricts oxygen availability to roots, promoting anaerobic conditions and metabolic dysfunction. This leads to ethylene accumulation, root hypoxia, nutrient imbalance, and pathogenic infection susceptibility.
Plain English
Too much water in soil blocks oxygen from reaching roots, causing root damage and poor plant growth.
Etymology & History
Usage
"Waterlogging stress reduced grain yields in rice paddies after excessive monsoon rainfall."
Style guide notes: Use 'waterlogging stress' for soil saturation contexts and 'submergence stress' when plants are fully submerged under water.
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Contrasted with
Related Terms
Frequently Asked Questions
How do plants respond to waterlogging stress?
Plants develop aerenchyma, accumulate ethylene, and shift to anaerobic respiration pathways.
Which crops are most susceptible to waterlogging?
Maize, wheat, and soybean show severe yield reductions; rice is tolerant through adaptive mechanisms.
Why Test Candidates on This?
Waterlogging stress assessment is critical for breeding flood-tolerant crops and managing agricultural lands prone to poor drainage.
Required skill level: Mid