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Question : Define pholem unloading. What are the steps involved in it?

Answer»

SOLUTION :From sieve elements sucrose is translocated into sink organs such as roots, TUBERS, flowers and fruits and this process is termed as phloem unloading. It consists of three steps:
1. Sieve element unloading : Sucrose leave from sieve elements.
2. Short distance TRANSPORT: Movement of sucrose to sinkcells.
3. Storage and metabolism: The final step when sugars are stored or metabolized in sink cells.


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