stomatal


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sto·ma·tal

(stō'mă-tăl),
Relating to a stoma.

stomatal

(stō′mă-tăl) [Gr. stoma, mouth]
Concerning stomata.
References in periodicals archive ?
One hundred and ten days after planting, the following variables were evaluated: C[O.sub.2] assimilation (A), intercellular C[O.sub.2] concentration (Ci), stomatal conductance (gs), and transpiration (E) in the central lobes of the youngest fully expanded leaves (YL) and the old leaves (OL) located in the lower part of the stem.
Leaf net photosynthesis rate (Pn), stomatal conductance (gs), transpiration rate (Tr), and chlorophyll fluorescence ([F.sub.v]'/[F.sub.m]') were measured seven times from 20 to 32 DAP, from the youngest fully expanded leaves between 10:00 and 01:00 h, from three individual plants per treatment, using an LI-6400 portable photosynthesis meter (Li-COR Inc., Lincoln, NE) with an integrated fluorescence chamber head (Li-COR 6400-40 leaf Chamber Fluorometer, LI-Cor Inc.).
The aim of this paper was to evaluate the effects of salinity on stomatal density, leaf area, plant height and diameter of Rhizophora mangle, and to determine if there was an association between these variables in three different sites that provide a natural salinity gradient.
Gas exchange attributes like net CO2 assimilation rate (A), transpiration rate (E), sub-stomatal conductance (Ci), stomatal conductance (gs), water use efficiency (A/E) and (Ci/Ca) from 11:00 am to 1:00 pm.
Furthermore, the microscopic examination was showed about 16.6% as stomatal index of upper surface while 25% for lower surface of leaves shown in Table 1.
These two stresses would have caused a denaturing of some RuDPCase and other enzymes essential for A, interfered with stomatal conductance, and lowered turgor of the leaves thus reducing the intercellular spaces of the mesophyll to make contact with available C[O.sub.2] and thus impair A.
This phytohormone is well documented as the key regulator of stomatal closure in plants during water stress [30].
A perusal of data revealed that delayed sowing of mustard significantly reduces the stomatal conductance.
PI values, indicating the response of leaf traits to the light gradient within the stand, were 0.43 for stomatal density, 0.39 for LMA, 0.11 for water content, 0.45 for chlorophyll per unit mass, and 0.21 for leaf lifespan.
Stomatal conductance in treated leaves decreased when salinity increased for all treatments comparison with the control treatment as shown in Table 5.