A potometer measures the rate of water uptake (transpiration) and requires precautions like sealed joints and underwater stem cutting for accurate results.
Um potômetro mede a taxa de absorção de água (transpiração) e requer cuidados como vedação de juntas e corte subaquático do caule para garantir resultados precisos.
| Front | Potometer and precautions 3.1.3(c) |
|---|---|
| Back | Measures Rate of water uptake (transpiration) - Make sure all joints sealed with waterproof jelly (so water only lost at stem/leaves) - cut stem underwater to prevent introducing air bubbles - make sure stem/ leaves not wet otherwise interferes with results - seals have to be air tight, and air reservoir pushes air bubbles back to position |
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