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STEM MORPHOLOGY. Shoot tip Leaf scar Young leaf Stipule Lateral vein Leaf margin Pulvinus Petiole (leaf stalk) Leaf base Midrib Adventitious roots Abscission.

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Presentation on theme: "STEM MORPHOLOGY. Shoot tip Leaf scar Young leaf Stipule Lateral vein Leaf margin Pulvinus Petiole (leaf stalk) Leaf base Midrib Adventitious roots Abscission."— Presentation transcript:

1 STEM MORPHOLOGY

2 Shoot tip Leaf scar Young leaf Stipule Lateral vein Leaf margin Pulvinus Petiole (leaf stalk) Leaf base Midrib Adventitious roots Abscission zone Internode Soil surface Transition zone Axillary bud Node Primary lateral root Tap root Secondary lateral root Leaf tip Axillary bud Leaf Root Stem Parts of Root, Stem and Leaf

3 new corm old corm BULB RHIZOME CORM TUBER axillary bud internode scale leaf node adventitious roots tuber axillary bud adventitious roots stem axillary bud terminal bud scale leaf axillary bud STEM MODIFICATIONS

4 Ginger - rhizome Potato- tuber Gladiolus - cormOnion - bulb

5 STOLON SUCKER RUNNER stolon runner suckernew rhizomeold rhizome sucker

6 Banana - suckers Stolons Runners

7 CLADODE cladode Asparagus

8 Stem modificationLeaf modification Thorn

9 STEM BRANCHING shoot tip/apex main stem lateral branch - Indefinite - Racemose - Monopodial dead shoot tip Biparous Scorpiod (Zigzag)Helicoid (helix) Uniparous Cymose/Definite

10 Zigzag branching

11 TENDRILS tendrils

12 Cymose/Definite

13 Monopodial/Racemose/Indefinite


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