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.
>
> When replying, please edit your Subject line so it is more specific
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> Today's Topics:
>
> 1. Flower induction in organic pineapples
> (Organic Pineapple Working Group)
>
>
>
----------------------------------------------------------------------
>
> 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>
> Content-Type: text/plain; charset="us-ascii"
>
> 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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> > Today's Topics:
> >
> > 1. Re: Pineapple News No. 16 (Organic Pineapple Working Group)
> >
> >
> >
----------------------------------------------------------------------
> >
> > 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"
> >
> > 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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