seminar biology spm
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Transcript of seminar biology spm
PHENOMENON OF WILTING IN PLANTS
• Excessive use of chemical fertilisers will cause plants to wilt.
• Fertilisers will dissolve in the soil & cause the soil water to be hypertonic to the root cells of the plant.
• Water diffuses out of the root cells cells lose water to their surrounding & shrinks plasmolysis occurs flaccid plant wilt.
• No water is given continue wilt & die.