plants that NEED an atmospheric pressure change??

plants that NEED an atmospheric pressure change??
rdjenkins (Thu, 11 Sep 2008 16:40:36 PDT)

----- Original Message -----
From: "Adam Fikso" <adam14113@ameritech.net>
To: <pbs@lists.ibiblio.org>
Sent: Thursday, September 11, 2008 2:51 PM
Subject: [pbs] plants that NEED an atmospheric pressure change??

Hello All,. Mary Sue's last post caught my eye re the above. Is this a
known , for-sure fact for any plants? It's totally new to me although I've
wondered about it from time to time. Any data-based responses are welcome.
Adam in Glenview, IL. USDA 5a (sort of)

I think there may something to this.

In the past when we've discussed how rainfall prompts blooming in otherwise well-watered bulbs, I don't recall this element being mentioned. I do hope there is some research about this.

Another thought: After watching a program regarding rain, one thing that stood out to me was the fact that each raindrop forms around a bit of "dust" and that rain isn't necessarily pH neutral. Acid rain etc. Then I thought about the recommendation of foliar feeding of Crinums to help with blooming. Hmmm... Rain as a natural foliar feeding?

Robert.