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Subject:  Heat or Humidity

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jeff517

Ga.

Which causes the plants to wilt??Only 79 degrees and my yellow squash and ag's are showing wilt during the day...

4/22/2002 11:19:08 AM

Smitty

Edmonton, Canada

Are they getting enough water? Those temperatures shouldn't cause any wilting.

4/22/2002 11:35:29 AM

jeff517

Ga.

plenty of water smitty,

4/22/2002 12:11:16 PM

Tom B

Indiana

High humidity would keep the moisture in the plant wouldn't it? I would say more than anything, down your way that it would be light intensity, causing heat on the plant surface.
Tom Beachy

4/22/2002 12:57:27 PM

jeff517

Ga.

Humidity makes the air thicker,,makes it seem hotter...

4/22/2002 2:15:14 PM

LIpumpkin

Long Island,New York

The plants lose water through the leaves to cool off....if the air is supermoist, it doesn't accept the moisture from the leaves as readily as in a dry hot environment....the sun's intensity heats the leaves up and the atmoshere doesn't help in cooling it off,so it wilts. Every plant has a point of optimum intensity use...meaning in my jumbled Glennspeak, that the ag plant doesn't need the intensity of georgia sunlight...it wont grow any better past that optimum point....but it may create problems with burning and wilting. Shadecloth my man...shadecloth.I've used 50% shadecloth here on LI and in back to back plants saw no difference between 50%and full sun in growth, except that its better to work under the shade and it wilted less.....G

4/22/2002 3:16:29 PM

jeff517

Ga.

A question then G,,,if shade cloth is ok,,why isnt it ok to grow in the shade?

4/22/2002 4:17:15 PM

LIpumpkin

Long Island,New York

Because you still get 50% sun through 50%shade cloth.Thats all the plant needs here...intensity-wise....you know those hazy days when you cannot see the sun but burn to a crisp at the beach?....those are the biggest growth days in my patch.......G

4/22/2002 4:20:47 PM

Pappy

North Ga

Same thing is happening here Jeff. Not a bad wilt but enough to be concerned. My 625.4, 455.4 and 441 are doing great though. Main vine on the first two are over a foot long and laying down. I think I'll go G's route with the shadecloth over a couple and compare. Good luck!!!

4/22/2002 6:00:16 PM

Alun J

Liverpool , England

Yo Jeff,
Do your plants have good root systems? If not then they cannot take up enough water to keep the leaves from wilting. I've had plants in a greenhouse at 100 degrees that have not wilted..but they have had a good root system..and others outside at 80 degrees that have wilted..and they had small root systems.


Alun

4/22/2002 7:30:49 PM

Bantam

Tipp City, Ohio

Air movement outside would also cause wilting to some degree. Might be another factor in Alun's greenhouse plant at 100 degrees and not wilting....Tom

Alun,
I thought you used the metric system (Celcius)? lol

4/22/2002 8:19:07 PM

Brian C.

Rexburg, Idaho ([email protected] )

It seems like the younger plants wilt more then older plants. I guess the leaves of the younger plants outgrow the capability of the root system to supply water to the plant but as the season progresses the roots catch up. My 2 cents worth.

4/23/2002 8:55:29 AM

Water (John)

Midway City, California

Glen, Does that mean your whole patch is covered in shade cloth or just over the pumpkin?

4/23/2002 3:34:29 PM

LIpumpkin

Long Island,New York

The whole patch was....g

4/23/2002 4:46:02 PM

Alun J

Liverpool , England

Yo Tom,
I like to keep to the old measurements...to hell with European intervention....and Brian...I agree with your 2 cents worth.

Alun

4/23/2002 7:55:41 PM

Bantam

Tipp City, Ohio

Alun,
How old(large) was the plant(s) that you had in the greenhouse?

Sounds ideal if the greenhouse would be about 500 - 1000 sq ft. Would not have a problem with bugs and critters. Better control of moisture, Humidity and temp. I guess I can dream.....Tom

4/23/2002 8:27:23 PM

Total Posts: 16 Current Server Time: 11/9/2025 11:58:24 AM
 
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