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102 Bot
Lab 8
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is generally considered to be
the central axis of the plant.
supports the leaves and flowers
of a plant.
has nodes from which new
shoots and sometimes new roots
can arise.
is usually found above-ground,
but can be modified and found
below-ground as well.
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Underground Stem Modifications ارضيهسيقان Aerial Stem Modificationsسيقان هوائيه
هي السيقان التي تنمو تحت سطح األرض هي السيقان التي تنمو فوق سطح األرض
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غضة خضراء
بسهولة نسبة الخشب قليلةتنحني
سميكة
متخشبةصلبة
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نبات كشك أل: مثلمنها ما يكون سالمية واحدة
.السفندر ، ومن أمثلتها نبات، ومنها ما هو عديد السالميات
السفندر
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لشوكي ا نبات التين: مثل
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. انعاقىلووبات مثم وبات انسهة
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.انبازالءفي انمحانيقنحسهق في انعىب أو ا معانيق مثم
البازيالءنبات محالق
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وانكاواانىجيم ريزومةمه أمثهة هذي انىباجات
(Cana).
Iris rhizome
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أمثهحها مه
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وبات انثىو و، مه أمثهحها انبصم
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Runner
Stolon
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Sucker
Offset
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(رسىو جخطيطية وصىر ألوىاع انسيقان جحث األرضية)
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