Question

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The Pressure Flow or Mass Flow Hypothesis...

Answer 1

Mass-flow hypotheses include the pressure-flow hypothesis, which states that flow into sieve tubes at source regions (places of photosynthesis or mobilization and exportation of storage products) raises the osmotic pressure in the sieve tube; removal of sugars from sieve tubes in sink regions

Answer 2

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Dear ,

The Pressure Flow or Mass Flow Hypothesis is considered as the best-supported theory to explain the movement of sap through the phloem which was proposed by Ernst Munch, a German plant physiologist in 1930.


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