Parts of two plants were observed. Structure A
develops aerially and produces roots when comes in contact with the soil.
Structure B develops from underground part of the stem, grows obliquely becomes
aerial and produces roots on its lower surface. Identify respectively the
structures of A and B.
The correct option is A Stolon, sucker
RUNNER- The runner- arises from the base
of the stem as a lateral branch and runs along the surface of the soil. It develops
distinct nodes and internodes. At each node, the runner produces roots below and
leaves above. In this way many runners are often produced by the mother plant and
they spread out on the ground on all sides.
STOLON- Here, lateral branches called stolons originate
from the underground stem. The stolons grow horizontally outwards for a varying
distance in the soil. Ultimately their end (terminal bud) emerges out of the ground
and develops into a new plant.
SUCKER- A lateral
branch arising close to the ground level, traveling underground for some distance,
turning up at its end and producing a new plant is a sucker.
As per question
plant A can be stolon or runner and B is sucker. Hence A is correct option.
RUNNER- The runner- arises from the base of the stem as a lateral branch and runs along the surface of the soil. It develops distinct nodes and internodes. At each node, the runner produces roots below and leaves above. In this way many runners are often produced by the mother plant and they spread out on the ground on all sides.
STOLON- Here, lateral branches called stolons originate from the underground stem. The stolons grow horizontally outwards for a varying distance in the soil. Ultimately their end (terminal bud) emerges out of the ground and develops into a new plant.
SUCKER- A lateral branch arising close to the ground level, traveling underground for some distance, turning up at its end and producing a new plant is a sucker.
As per question plant A can be stolon or runner and B is sucker. Hence A is correct option.
