abscission zone
American Heritage Dictionary:
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abscission zone
n.
The region at the base of a leaf, flower, fruit, or other plant part, where the formation of a cork layer results in the separation of that part from the plant body.
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abscission zone
Taylor's Dictionary for Gardeners:
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abscission zone
The layer of cells at the base of the leaf, flower, or fruit stem that, when it weakens, causes the organ's separation from the plant.
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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