North American Fruit Explorers mailing list at ibiblio

[Ginda Fisher <ginda@concentric.net>]

I'm sure most plants are sensitive to humidity.  Many plants close their
pores in response to water stress, which reduces the air flow and the
amount of photosynthesis they can do.  Many plants will keep on chugging
so long as the roots can provide enough water, but I wouldn't be
surprised if some plants from damp climes just aren't designed to pull
water up fast enough to keep the leaves from being water stressed in the
desert.

Also, if you are high, the plants are exposed to more ultraviolet
light.  Some plants like that, but others get "sunburned" and don't
thrive.

Ginda

Bob and Winnie wrote:
> 
> Thanks for responding Gordon but ph was not a factor as I grew in
> special soil.
> There is one growth parameter that I have never heard spoken of that
> many folks take for granted; living in the high desert, I have noticed
> when going almost anywhere else that it is very humid.
> Might not many plants be sensitive to RH levels of 2-5%?
> 
> thanks, bob
> 
> 
> 
> 
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