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  • From: Organic Pineapple Working Group <opwg AT lists.ibiblio.org>
  • To: Organic Pineapple Working Group <opwg AT lists.ibiblio.org>
  • Subject: Re: [OP] Ethylene Flower Induction in Pineapples.
  • Date: Sat, 22 Aug 2009 22:54:28 -1000

There is a long history of using smoke to induce flowering of pineapple, first in England or the Azores and it became a standard practice in the Azores and in Puerto Rico.  It was found that the active ingredient in smoke was ethylene by Rodriguez from Puerto Rioc while working on an M.S. degree in about 1939; I can look up the citation is anyone is interested.

Duane Bartholomew

Organic Pineapple Working Group wrote:
SNT115-W458EB6E44D1FDF029B88B3B3FA0 AT phx.gbl" type="cite">
In ancient roman times fruits were ripened in large ceramic jars with a burning incense inside the sealed jars with fruits.
I have also seen induced senescence in greenhouse flora, when worker and visitors are cigarette smokers. One of the many reactive chemicals in cigarette smoke is ethylene. I would just put it out there as a thought..but lighting small well controlled bonfires to release smoke in an around the pineapple field...or using a hand held smoker like a beekeepers one...can effectively produce the required amount parts per million, for floral induction

In the caribbean where I am from- Rastafarians and indigenous indians use the dried leaves and any form of weeds growing in the fields and burn them to ward off pests and diseases. I would infer that this may also in some way benefit the the floral induction process in field crops.

What do you think


Lyndon Ramrattan B.Sc.(Agronomy)
M.Sc.(Tropical Commodity Utilization)
Univeristy of the West Indies.
St. Augustine
Trinidad and Tobago.


>
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> Today's Topics:
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> 1. Flower induction in organic pineapples
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> Message: 1
> Date: Thu, 20 Aug 2009 08:58:16 +0530
> From: Organic Pineapple Working Group <opwg AT lists.ibiblio.org>
> Subject: [OP] Flower induction in organic pineapples
> To: "Organic Pineapple Working Group" <opwg AT lists.ibiblio.org>
> Cc: ilmi AT iti.lk
> Message-ID: <4A8CC2D0.000008.04116@ITI-PC>
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> I am not sure how acceptable carbide stones are. As far as I know, on
> contact with water, carbide liberates acetylene gas which is an analogue of
> ethylene. Certain unacceptable impurities are also known to be present in
> tcarbide.
>
> Would like your comments.
>
> Shanthi
>
> -------Original Message-------
>
> From: Organic Pineapple Working Group
> Date: 8/19/2009 6:21:29 PM
> To: opwg AT lists.ibiblio.org
> Subject: Re: [OP] OPWG Digest, Vol 17, Issue 1
>
> Currently there is the use of carbide stones. I am not positive on the
> source of this carbide, or the chemistry. It releases ETHYLENE gas upon
> contact with moisture.
>
> > From: opwg-request AT lists.ibiblio.org
> > Subject: OPWG Digest, Vol 17, Issue 1
> > To: opwg AT lists.ibiblio.org
> > Date: Tue, 18 Aug 2009 16:57:02 -0400
> >
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> > 1. Re: Pineapple News No. 16 (Organic Pineapple Working Group)
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 > >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Fri, 14 Aug 2009 16:16:11 +0530
> > From: Organic Pineapple Working Group <opwg AT lists.ibiblio.org>
> > Subject: Re: [OP] Pineapple News No. 16
> > To: "Organic Pineapple Working Group" <opwg AT lists.ibiblio.org>
> > Message-ID: <4A854073.000018.05740@ITI-PC>
> > Content-Type: text/plain; charset="iso-8859-1"
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> > Dear Duane,
> >
> > I wonder if you would be able to help with information on organically
> > acceptable methods for flower induction.
> >
> > Best regards,
> >
> > Shanthi
> >
> > -------Original Message-------
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-- 
Duane P. Bartholomew, Ph.D., Agronomist emeritus
Dept. of Tropical Plant and Soil Science, University of Hawaii at Manoa
1910 East-West Road, Honolulu, HI 96822
Pineapple News on the web at http://www.ishs-horticulture.org/workinggroups/pineapple/.



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