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Cultivated plants
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Stomatal characteristics among cassava cultivars and their relation to gas exchange
by El-Sharkawy M. A. (1984)
Mabrouk A. El-Sharkawy,
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in Experimental Agriculture 20: 67-76 –
Author’s submission
Abstract:
Cassava (Manihot esculenta Crantz) has generally been reported to possess hypostomatal leaves. Several cultivars have now been found to possess clusters of functional stomata around the veins on the upper leaf surface and two cultivars (M Col 88 and M Col 90) have significant numbers of stomata (83-140 square mm) dispersed over the entire upper leaf surface.
Stomatal density on the lower leaf surface ranged from 322-553 per square mm among cultivars, with a relative stomatal área of 3.4-6.1%.
The CO2 uptake by the upper leaf surface (27% of total) and the transpiration loss (32% of total) corresponded closely to the ratio of relative stomatal áreas on the upper and lower leaf surface of cv. M Col 88.
PLANT STOMATA ENCYCLOPEDIA 
