When plants are growing rapidly, the size of the growth induced
water potential field becomes larger and it has not
been observed in the adjacent mature or slowly growing
tissues . it is important
to note that when the growth-induced water potential is
present and growth rates become larger, the water potential
in the zone of elongation becomes more negative than that
in the water source . The
existence of tension and the negative pressure were confirmed
in the elongating tissue of soybean stems
Whenever the growth process is occurring, the absorption
of water is necessary to sustain cell expansion. Thus, the
growth-inducad water potential must be present between
the elongating cells and the water source. The value of the
growth-induced water potential was determined by a pressure
chamber when growth of soybean seedlings was
reduced by low temperatures, and it was found that the size
of the growth-induced water potential was decreased proportionally
as the growth rates were decreased by low
temperatures . These findings were confirmed
by using the psychrometer in the same tissue, indicating that
water absorption associated with growth under chilling stress
was regulated by the size of the growth-induced water
potential
When plants are growing rapidly, the size of the growth inducedwater potential field becomes larger and it has notbeen observed in the adjacent mature or slowly growingtissues . it is importantto note that when the growth-induced water potential ispresent and growth rates become larger, the water potentialin the zone of elongation becomes more negative than thatin the water source . Theexistence of tension and the negative pressure were confirmedin the elongating tissue of soybean stemsWhenever the growth process is occurring, the absorptionof water is necessary to sustain cell expansion. Thus, thegrowth-inducad water potential must be present betweenthe elongating cells and the water source. The value of thegrowth-induced water potential was determined by a pressurechamber when growth of soybean seedlings wasreduced by low temperatures, and it was found that the sizeof the growth-induced water potential was decreased proportionallyas the growth rates were decreased by lowtemperatures . These findings were confirmedby using the psychrometer in the same tissue, indicating thatwater absorption associated with growth under chilling stresswas regulated by the size of the growth-induced waterpotential
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