North American Fruit Explorers mailing list at ibiblio

["Dr. Chiranjit Parmar" <parmarch@sancharnet.in>]

I am doubtful.  Ethrel does create leaf or even fruit drop.  But its action is different.  The leaf fall at the end of season is caused by the induction of dormancy and different growth regulators within the plants are responsible for it.  Here the plant starts entering dormancy when it is not affected by cold.  Ethrel will only cause leaf drop and no dormancy will be induced.

 

Certain growth regulators have been found to promote dormancy in plants.  Treatment with such chemicals might help.  I am out of touch with this part of subject since long but I have worked on growth regulators during my Ph.D. and then for some years while in university service.  So I have some basic knowledge.

 

Let some active researcher through light on it.

 

Very truly yours,

 

Dr.Chiranjit Parmar
Horticultural Consultant of Lesser Known Indian Fruits
www.lesserknownindianplants.com

----- Original Message -----

From: Jwlehman@aol.com

To: nafex@lists.ibiblio.org

Sent: Wednesday, February 22, 2006 8:49 PM

Subject: Re: [NAFEX] Inducing hardening-off

In a message dated 2/22/2006 9:11:35 AM US Eastern Standard Time, jfruth@uslink.net writes:

  A problem that I have with growing peaches here in zone 3 is that the
trees don't always harden off when they should.

I've wondered if spraying something like Etherel (sp?) to bring on early defoliation might cause trees to go dormant early. Any product that is used on soybeans to bring on early ripening which brings down the leaves might work.
The reason I've thought about this is kaki persimmon keep their leaves long after the American persimmon have fallen. Would they harden off faster and better if sprayed?

Jerry  

---

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