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- #Biology
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- #Plant Physiology
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"Girdling Experiment" was performed by Plant Physiologists to identify the plant tissue through which :
food is transported
for both water and food transportation
osmosis is observed
Water is transported
Answers (1)
Girdling/Ringing experiment was performed by 'Malpighi’ in 1672, to identify the tissues through which food is transported. It involves the removal of all the tissue outside to vascular cambium (bark, cortex and phloem) in the woody stem except for the xylem. In the absence of downward movement of food, the portion of the bark above the ring on the stem becomes swollen after a few weeks. This simple experiment shows that Phloem is the tissue responsible for the translocation of food and that transport takes place in one direction, i.e., towards the roots.
Hence, the correct option is (a).
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