Soil waterlogged in soil effect on hydric potential and stomatal resistance in tomato
DOI:
https://doi.org/10.59741/agraria.v12i2.217Keywords:
Lycopersicon esculentum Mill, soil waterlogged, deficiency of oxygen, stomatal resistance, hydric potentialAbstract
There are regions in which tomato crop has waterlogging periods that cause physiological and chemical changes in the plant. In the present research 25 waterlogging treatments were evaluated under greenhouse conditions. The objective of this experiment. was to quantify physiological changes in water potential (Th) and, stomatal resistance (Te) in tomato plants under stress from flowering to fructification periods. When waterlogged increased, the oxygen in the soil solution decreased, in a period of 24 hours the oxygen was reduced in 93.2%; the Th in the leaf decreased 0.11 Mpa and the Te increased 12.6 s cm1 in relation to non stressed plants. In 72 hours in waterlogged conditions the oxygen was consumed completely causing the stomatal closing.
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