The eight to 20 leaves that may form are arranged
spirally on the stem, and they occur alternately in
two opposite rows on the stem. The maize leaf is
a typical grass leaf and consists of a sheath,
ligules, auricles and a blade. The leaf blade is
long, narrow, undulating and tapers towards the
tip and is glabrous to hairy. The leaf is supported
by a prominent mid-rib along its entire length.
Stomata occur in rows along the entire of the leaf
surface. More stomata occur on the underside of
the leaf than on the upper surface. On the upper
surface motor cells are present. These large,
wedge-shaped cells occur in rows, parallel to and
between the rows of stomata. During moist
conditions, these cells rapidly absorb water,
become turgid and unfold the leaf. During warm,
dry weather, the cells quickly lose their turgor
with the result that leaves curl inwards exposing
a smaller leaf surface to evaporation
The eight to 20 leaves that may form are arranged
spirally on the stem, and they occur alternately in
two opposite rows on the stem. The maize leaf is
a typical grass leaf and consists of a sheath,
ligules, auricles and a blade. The leaf blade is
long, narrow, undulating and tapers towards the
tip and is glabrous to hairy. The leaf is supported
by a prominent mid-rib along its entire length.
Stomata occur in rows along the entire of the leaf
surface. More stomata occur on the underside of
the leaf than on the upper surface. On the upper
surface motor cells are present. These large,
wedge-shaped cells occur in rows, parallel to and
between the rows of stomata. During moist
conditions, these cells rapidly absorb water,
become turgid and unfold the leaf. During warm,
dry weather, the cells quickly lose their turgor
with the result that leaves curl inwards exposing
a smaller leaf surface to evaporation
การแปล กรุณารอสักครู่..
The eight to 20 leaves that may form are arranged
spirally on the stem, and they occur alternately in
two opposite rows on the stem. The maize leaf is
a typical grass leaf and consists of a sheath,
ligules, auricles and a blade. The leaf blade is
long, narrow, undulating and tapers towards the
tip and is glabrous to hairy. The leaf is supported
by a prominent mid-rib along its entire length.
Stomata occur in rows along the entire of the leaf
surface. More stomata occur on the underside of
the leaf than on the upper surface. On the upper
surface motor cells are present. These large,
wedge-shaped cells occur in rows, parallel to and
between the rows of stomata. During moist
conditions, these cells rapidly absorb water,
become turgid and unfold the leaf. During warm,
dry weather, the cells quickly lose their turgor
with the result that leaves curl inwards exposing
a smaller leaf surface to evaporation
การแปล กรุณารอสักครู่..