Stem of date palm increases in girth due to activity of:
Date palm is a monocot and lack lateral meristem; the meristem present along the sides causing the increase in girth of the plant.
Apical meristem is present at the tips of root and shoot and give rise to primary permanent tissue systems. The apical meristem causes increase in height of the date palm from growing tips. The apical meristem is modified to form temporary meristem which serves the function of lateral meristem, divide and produce new cells. Enlargement of these peripheral cells cause increase in girth of the date palm.
The apical meristem, which is separated from apices due to formation of permanent tissues in between, is termed as intercalary meristem; it is internodal in position and carries out localized growth.
Thus, the correct answer is option (B).
The transverse section of a plant shows following anatomical features: (a) Large number of scattered vascular bundles surrounded by bundle sheath (b) Large conspicuous parenchymatous ground tissue (c) Vascular bundles conjoint and closed (d) Phloem parenchyma absent Identify the category of plant and its part :
Select the incorrect statement regarding the anatomy of a typical monocotyledonous stem
Y-shaped arrangement of xylem vessels is found in
Lysigenous cavity in monocot stem vascular bundles develops by the dissolution of
Secondary growth usually does not occur in
Cortex and pith are not distinguished in
Lysigenous cavity and Y-shaped xylem occurs in
Hard bast (bundle cap) occurs in
In monocot stems, secondary growth cannot occur, because vascular bundles are
Which type of vascular bundles are found in monocot stem?