Correct option is B
Geotropical bending refers to the
curvature or bending of plant parts (like flower spikes) in response to
gravity (geotropism).
Key Points:
·
Gladiolus (Gladiolus spp.):
· Exhibits
geotropical bending, especially in its
flower spikes.
· If gladiolus spikes are
not kept upright during development or post-harvest handling, they
bend due to gravitational pull.
· The bending affects:
·
Aesthetic appearance.
·
Market quality (straight spikes are preferred for cut flower trade).
·
Management:
· Growing with proper
staking support.
· Keeping cut spikes
vertical during storage and transport.
Other Options Explained:
·
(a) Rose:
· Roses generally do not show geotropic bending in flowers or stems.
·
(c) Chrysanthemum:
· Not prominently associated with geotropic bending of stems or flowers.
·
(d) Sunflower:
· Shows
heliotropism (movement toward sunlight) during the vegetative stage, not geotropism in the flower stalks.