Neco 2018 Agricultural Science Question 25
Practice objective / multiple choice question 25 from the 2018 Neco Agricultural Science examination.
The diagram depicts a mature maize plant with the following labelled organ lengths: stem \(2.4\) m, leaf \(0.6\) m, ear \(0.3\) m, and root \(1.2\) m. The cross‑sectional area of the stem is twice that of each of the other organs (leaf, ear, root), which all have the same area. Assuming dry‑matter accumulation is proportional to the product of length and cross‑sectional area for each organ, calculate the percentage of the plant's total dry matter that is contained in the stem. Round your answer to the nearest whole percent.
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About This Question
This is Neco 2018 Agricultural Science Question 25. It is one of the objective questions from the 2018 Neco Agricultural Science examination.
Difficulty level: Medium .
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