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Which is the most reliable measure of plant growth?
Afresh weight, which is easy to record
Bleaf colour intensity at noon
Cstem diameter at the base only
Ddry weight, which excludes water content
Answer & Solution
Correct answer: D. dry weight, which excludes water content
Fresh weight varies with how much water the plant has absorbed in the last few hours. Dry weight, measured after oven-drying, reflects actual organic matter accumulated. Length, area, and volume are also used but dry weight is the most reliable.
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