CULT: TB: Leaf operation question

Hi Listers,

	I have been following the thread about the different size of the rhizomes
on the West coast verses those we are able to grow here on the East coast. I
have an hypothesis as to the reason. The idea comes from the following facts
that I have picked up from you and books on plants.

	1. East is more humid than the West.
	2. Humidity at night in East reaches close to 100% by dawn.
	3. Humidity drops during the day to around 30 or 25% and begins to increase
with the setting of the sun.
	4. Moisture of the soil is higher in the shaded areas.
	5. Plants collect food during the day and do most of their growing at
night.
	6. Outer leaves fall over during the growth cycle as the inner leaves
increase in size.
	7. Bearded Iris are desert surviving plants.

	Conclusions:
	1. Plants use roots to collect water from the soil and the leaves to
collect water from the air.
	2. Plants go dormant in the summer heat, based upon how much water they are
able to collect during the daily growth cycles.
	3. If the plant is able to collect more water through the leaves than
through the roots, then the rhizome does not need to store as much water for
the nightly growth cycle.

	Hypothesis:
	The availability of air moisture as well as soil moisture in the east,
suggests that the plant does not need to store as much water in the leaves
for survival. Thus, the size of the rhizome is in direct correlation to the
amount of moisture available in the air verses the soil.

	Also, do the bearded irises seem to have more problems with rot if they are
watered in the evening versus the morning either by us or nature?

	What do you think?
Connie
z7 Chesterfield VA
member AIS, RIS, and CVIS




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