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  • From: "Lucky Pittman" <lpittman@murraystate.edu>
  • To: <orders@cuttsreviews.com>, "'nafex mailing list at ibiblio'" <nafex@lists.ibiblio.org>
  • Subject: Re: [nafex] Pale leaves in sun??
  • Date: Fri, 22 Jun 2012 09:24:50 -0500

Jay,
While pawpaws do just fine in full sun, once established - shading for the
first year or two, or container-growing for several years, then planting - I
do think that sun-exposed leaves are lighter green than those of trees
growing in deep shade.
Soil pH may also be a consideration, though, so assessment of pH and
acidification, if needed, may be in order.

Lucky Pittman
Hopkinsville, KY

-----Original Message-----
From: nafex-bounces@lists.ibiblio.org
[mailto:nafex-bounces@lists.ibiblio.org] On Behalf Of Jay Cutts
Sent: Wednesday, June 20, 2012 6:21 PM
To: nafex mailing list at ibiblio
Subject: [nafex] Pale leaves in sun??

Does anyone have any ideas on why the leaves of a tree would become paler in
the sun than they are in the shade?

I have two small pawpaw's. One is under shade cloth and gets no direct sun.
It has dark green leaves. The other is not covered and gets full sun about
half the day. It has very pale leaves. I've seen this a number of times with
pawpaws. In the shade the leaves are dark green. In the sun, they are pale.

We're in New Mexico at about 5500 feet.

For a while I was treating the pale plant as chlorotic (which is how it
looks) and applying iron as a foliar spray and poured on the ground around
the roots. This didn't help at all. Then I realized that there might be a
different cause.

Normally, I'd expect a plant in the shade to be paler than one in the sun.

Any ideas?

Regards,

Jay

Jay Cutts
Director, Cutts Graduate Reviews
Lead Author, Barron's MCAT Prep Book
Lead Author, Barron's LSAT Prep Book (2013)
(505) 281-0684
10 am to 10 pm Mountain Time, 7 days



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