Question

Flag leaf contributes how much percentage if photosynthesis

Answer 1

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The flag leaf plays a very important role in grain filling is small grain crops such as wheat, barley, oats, triticale, etc because of its position on the culm. It is the topmost leaf and as such it intercepts quite a lot of radiation. Assimilation translocation from the flag leaf (source) to the the panicle (reproductive sink) is enhanced by the proximity

of the flag leaf to the sink. When the flag leaf of a small grain cereal crop is lost or destroyed, grain yield is lost as a result. Professor Vincent Ogunlela

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