Shoot System

Question 1

Largest bud

Answer 1

Cabbage

Question 2

Underground stem modification

Answer 2

1. Tuber - potato, artichoke, Helianthus tuberosus
2. Rhizome - Ginger, banana, turmeric, ferns
3. Corm - Amorphophallus (Zaminkand) , Colocasia, Alocasia, Gladiolus, Colcichum, Crocus
4. Bulb - Liliaceae
   Onion (Allium cepa) - simple tunicated bulb - outer tunic
   Garlic (Allium sativus) - compound tunicated bulb - bulblets tunic
   Lily - scaly bulb (tunic absent)

Question 3

Sub aerial stem

Answer 3

1. Runner - grass, oxalis
2. Offset - Pistia (water lettuce), Eichornia (water hyacinth/terror of Bengal)
3. Stolon - Strawberry, mint, jasmine
4. Sucker - pineapple, Chrysanthemum, banana

Question 4

Aerial stem

Answer 4

1. Stem tendrils: modification of 
apical bud (grapevine, vitis)
Axillary bud (Gourd/curcur bits, pumpkin, bittergourd)

2. Stem thorns- Bougainvillea, citrus

Question 5

Modifications of stem for photosynthesis

Answer 5

1. Phylloclade - Flattened (Opuntia), Fleshy (Cactus, Euphorbia, Aloe)
2. Cladode (Ruscus, Asparagus)