Stems Introduction to Horticulture PLSC 2100 Mr Warnick
- Slides: 31
Stems Introduction to Horticulture PLSC 2100 Mr. Warnick
At the completion of this unit students will be able to: A. Describe
Stems Growth of stems increase plant AND
Stem Functions 1. Conducts water and minerals from soil to leaves 2. Conducts manufactured food from leaves to other plant parts 3. Produces leaves and displays them to light 4. Supports leaves, flowers and fruit 5. Stores food reserves in some plants—potato, asparagus, cabbage hearts, etc.
Modified Stems Not all stems grow above ground
Rhizome An underground stem that grows horizontally. It may grow adventitious roots and stems to develop as a separate plant. examples include iris and wild ginger.
Tuber Is an enlarged part of a stem that grows underground. A tuber can develop into a separate plant. -examples include potatoes and yams.
Tendril Is a threadlike leafless growth on a stem that attaches itself around other stems and objects. Tendrils typically grow in a spiral shape. After attaching itself, it holds the stem in position. Vines and climbing plants often have tendrils. examples include sweet peas and cucumbers.
Stolon Is an above ground stem that grows horizontally and propagates new plants. examples include strawberries -
Bulb Is an underground food-storage organ consisting of flattened, fleshy stem-like leaves with roots on the lower side. examples of bulbs are onions
Corm Is a food storage structure at the end of a stem that grows underground. It is an enlarged or swollen stem base. -examples include gladiolus and crocus.
XYLEM
Phloem
Review
Monocot vs. Dicot
Monocot vs. Dicot
Monocot vs. Dicot
Taproot or Fibrous root
Taproot or Fibrous root?
Taproot or Fibrous root?
Taproot or Fibrous root?
Taproot or Fibrous root?
What is this?
Bulb
Tendril
Rhizome
Stolon
Corm
Tuber
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