Gce Model Questions Vol1 2021 Agricultural Science Question 22
Practice objective / multiple choice question 22 from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
The diagram shows a wheat plant with the dry weights of its parts measured after harvest. The stem weighs 45 g and the leaf weighs 35 g. The total above‑ground biomass (stem + leaf + spike) is 120 g. The spike consists of grain and the surrounding glumes, and the grain accounts for 80 % of the spike dry weight. (a) Determine the dry weight of the spike and the grain. (b) Calculate the harvest index, defined as grain weight divided by total above‑ground biomass, and state whether it meets the target value of 0.45 for a high‑yielding wheat variety.
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About This Question
This is Gce Model Questions Vol1 2021 Agricultural Science Question 22. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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