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Drought resistance in plants is related to:
Question

Drought resistance in plants is related to:

A.

Negative water potential

B.

Positive water potential

C.

Surplus water

D.

None of these

Correct option is A

✅ (a) Negative water potential: • Water potential (Ψ) becomes more negative under drought conditions. • Plants with higher drought resistance can tolerate lower (more negative) water potential, maintaining cell turgor and survival. • They minimize water loss and maximize uptake under stress.
❌ (b) Positive water potential: • Occurs in well-watered conditions; not characteristic of drought stress.
❌ (c) Surplus water: • Opposite of drought; not related to resistance.

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