Re: Meaning of "hypogeal"

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• To: s*@eskimo.com
• Subject: Re: Meaning of "hypogeal"
• From: R* &* D* S* <r*@kanservu.ca>
• Date: Tue, 10 Feb 1998 17:21:51 -0500
• Resent-Date: Tue, 10 Feb 1998 14:27:26 -0800
• Resent-From: seeds-list@eskimo.com
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At 03:12 PM 10/02/98 -0600, you wrote:
>Exactly what is hypogeal germination?
>
>Don Martinson
>dmartin@post.its.mcw.edu
>
Don,
Flowering plants are divided into epigeal and hypogeal germinators. In
epigeal germination the cotyledons are the first photosynthesizing leaves.
In hypogeal germination the cotyledons wither within the seed coat, and the
first photosynthesizing leaf or leaves are true leaves. Beans and peas
straddle the fence and don't quite fit the definition since their
cotyledons are primarily storage organs but they do carry out limited
photosynthesis.
*---------------------------------------------------*
Dale Smith (USDA Zone 5b)
RR2
St. Thomas, ON.   N5P 3S6
CANADA
*---------------------------------------------------*

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  • Meaning of "hypogeal"
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