Skip to Content.
Sympa Menu

nafex - [nafex] Re: re: aronia

nafex@lists.ibiblio.org

Subject: North American Fruit Explorers mailing list at ibiblio

List archive

Chronological Thread  
  • From: "Kristina & Bruce" <herenorthere@lycos.com>
  • To: nafex@yahoogroups.com
  • Subject: [nafex] Re: re: aronia
  • Date: Sat, 04 Aug 2001 15:18:25 -0400

If I remember correctly from plant physiology class years ago, plants start
closing their pores mid-afternoon, long before they lose usable sunlight. I
think that is under standard field conditions, not just when unusually water
stressed. Maybe things are different for plants growing in cloud forests or
other unusually humid environments, but plants everywhere else battle the
drying power of sun and air, no matter how moist the root zone. They do
awfully well - I've always been amazed so many plants tolerate the sun and
arid air of deserts, as long as there's moisture in the soil. Bruce Wittchen


> Date: Fri, 03 Aug 2001 20:36:08 -0400
> From: Ginda Fisher <ginda@concentric.net>
>Subject: Re: re: aronia
>
>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
>



Get 250 color business cards for FREE!
http://businesscards.lycos.com/vp/fastpath/

------------------------ Yahoo! Groups Sponsor ---------------------~-->
Small business owners...
Tell us what you think!
http://us.click.yahoo.com/vO1FAB/txzCAA/ySSFAA/VAOolB/TM
---------------------------------------------------------------------~->



Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/





  • [nafex] Re: re: aronia, Kristina & Bruce, 08/04/2001

Archive powered by MHonArc 2.6.24.

Top of Page