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What do you understand by the term sourc...

What do you understand by the term source and sink in plant physiology ?

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Source is defined as any organ is plants which are capable of exporting food materials to the areas of metanbolism or to the areas of storage eg: Mature leaves,germinating seeds.
Sink is defined as any organ in plants which receives food from source , eg:Roots ,tuber developing fruits and immature leaves.
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