Structure of the Vine Chapter 5. Structure of the Cell Cell wall Plasma Membrane Cytoplasm...
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Transcript of Structure of the Vine Chapter 5. Structure of the Cell Cell wall Plasma Membrane Cytoplasm...
Structure of the Vine
Chapter 5
Structure of the Cell
• Cell wall• Plasma Membrane• Cytoplasm• Protoplasm• Protoplast• Nucleus• Endoplasmic
Reticulum
• Ribosomes• Chlorophyll• Mitochondria• Golgi Body• Vacuoles• Cell Wall
Tissue
• Growth• Manufacturing & Storage• Protective• Support & Conducting
Growth
• Meristematic
Manufacturing & Storage
• Parenchyma
Protective
• Epidermis• Cork Cambium
Support & Conductive
• Xylem (tracheid cells and trachea)• Phloem (sieve tubes)
Parts of the Vine
• These parts may be classified into two groups by the work they perform:
• Those that carry on vegetative activity
• Those that produce seed or fruit
Root system
• 2-5 feet you will find the bulk of the roots.
• Lateral growth of roots is rarely restricted by natural conditions.
• Tens of thousands of rootlets are produced by a vine of moderate size.
• Absorption zone = is the region through which most of the water and mineral nutrients pass in entering the vine.
Shoot system
• Shoot• Growing tip• Buds• Leaf buds• Axillary buds• Leaf• Blade or lamina• Tendrils
• Lateral shoots• Arms• Trunk• Spur• Cane
Shoot
• Current years growth that arises from the bud.
Growing tip
• At the end of the shoot is the growing tip, 4-8 inches long, in which new cells are being formed by division and in which elongation is taking place.
Buds
• Normally develops at each node just above the leaf, in the leaf axil. A bud of a vine usually consists of three partially developed shoots, with rudimentary leaves or both rudimentary leaves and flower clusters.
Leaf buds
• Is a rudimentary sterile shoot. It will elongate into a shoot that bears only leaves and tendrils.
Axillary buds
• Usually describes the bud joint between the leaf stem and the shoot.
Leaf
• Is an expanded, lateral outgrowth of a shoot, arising at a node, and having a bud in its axil.
Blade or lamina
• Is the expanded or broad, flat part of the leaf.
Tendrils
• Give physical support to the primary shoots by coiling themselves around anything they come in contact with.
• **from the point of structure they are looked at as a cluster.**
Lateral shoots
• Form the canes.
Arms
• The permanent divisions of the vine, arising from or along the top of the trunk.
• They bear spurs or canes which are retained for next years production and shoots for this years production.
Trunk
• The permanent upward stem.
• It connects the roots to the arms.
Spur
• Short bearing unit retained during pruning.
Cane
• Long bearing unit retained during pruning.