Neco Model Questions Vol1 2025 Agricultural Science Question 11
Practice objective / multiple choice question 11 from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
The diagram shows a mature maize plant with leaf 3 measuring 30 cm in length and 5 cm in width, and leaf 5 measuring 45 cm in length and 6 cm in width. Leaf area can be estimated by \( \text{Area}= \text{length}\times \text{width}\times 0.75\). During a 12‑hour daylight period the average photosynthetic rate is \(20\ \mu\text{mol CO}_2\ \text{m}^{-2}\text{s}^{-1}\). Each micromole of CO₂ fixed produces \(0.0005\) g of dry biomass. Assuming only these two leaves contribute proportionally to the plant's total biomass, calculate the grain weight produced in one day if 20 % of the dry biomass is allocated to grain. Give your answer in grams to two decimal places.
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This is Neco Model Questions Vol1 2025 Agricultural Science Question 11. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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