--
You received this message because you are subscribed to the Google Groups "Coconut" group.
To unsubscribe from this group and stop receiving emails from it, send an email to coconut+u...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
--
-- Richard Illingworth, Pres. Costa Rica Cricket Federation San José, Costa Rica Tel +506 2268 2903 Mob +506 8981 7710
See his notations below…………….
Richard Illingworth, Pres. Costa Rica Cricket Federation San José, Costa Rica Tel +506 2268 2903 Mob +506 8981 7710
Sent: 07 January 2016 11:40
Dear colleagues,
Do you have any idea about agricultural and/or traditional practices for reducing the vertical growth of Tall-type coconut palms? We found such a practice in Vietnam, and we would like to know if other techniques are used in other countries.
A traditional practice from farmers of the Mekong Delta
In 1998, in the framework of an expertise on collecting strategies (Bourdeix et al, 1999[i]), the island of Hung Phong (01008N 10622E) in Mekong Delta was visited. While interacting with farmers, it appeared that what farmers called “Dwarf’ and “Tall” coconut palms did not fit with what was described in all other countries. More precisely, some coconut palms described by farmers as “Tall-types” had the typical stem of what is normally called “Dwarf”: a thin stem without any basal bulb, and very short internodes.
We finally find an explanation (see fig. 1 and 2). In this island, farmers had a very special traditional practice, never described before (as far as we know).
When 2 years old, the young tall coconut palm is removed from the ground, its roots and leaves are cut and, after that, the palm is planted again in the ground. Such palm will develop stem similar to those of Dwarf cultivars: no bole, very short internode distance and slow vertical growth. Farmers said that this practice causes a delay of about one year on the starting of production but does not affect the future performance of the palms.
It could be very useful to to scientifically assess this traditional practice, for both extending the lifespan of accessions in ex situ Coconut field genebanks, and for proposing a new ways of cultivation making harvest and field management more convenient and safe.
Links to figures: http://coconutvietnam.blogspot.fr/2016/01/coconut-bonzai-reducing-vertical-growth.html
Kind regards
Roland
Dear Hengky,
Nice to hear you again. I apologize, I had to change the setting and now this is working: to connect to the site where are the pictures, you simply have to get a Google account and then you can reach the information:
Kind regards
Roland
Dear Colleagues,
I have recently been invited to participate in a TV show named "On n’est pas que des cobayes” on the theme: "How to break a coconut with bare hand?". This popular scientific show from the France 5 Channel will be broadcast the Saturday, January 16, 2016 at 7pm (Paris hour) in France. They made plenty of tests related to resistance and hardness of cococnut. More details on the website:
http://www.france5.fr/emissions/on-n-est-pas-que-des-cobayes/diffusions
In my video, I show a traditional Polynesian technique which was not filmed in the TV show. This technique well allows a normal man to break a coconut with bare hand. Indeed, a man can do it, but what about a woman? Please check it in the video ...
Please follow one of these links :
https://www.facebook.com/diversiflora/
https://www.youtube.com/playlist?list=PLk5fZltdkTVRhvcPKijNNZ7Mq8b7ZZx3Y
Kind regards,
Roland
| Thanks Roland Dikirim dari Yahoo Mail pada Android
|
Dear Dr. Bourdeix , I'ts very interesting.
After this publication: http://coconutvietnam.blogspot.com.br/2016/01/coconut-bonzai-reducing-vertical-growth.html
you got to test the technique to see if it works in other conditions ? Best regards.
ClesoDear Cleso,
With IOOP we wrote a small project on this subject. We submitted this project to an internal call for funding in CIRAD. We do not know if it will be successful, as this call is very competitive. But anyway, we also prepared a small movie to demonstrate the most common technique used in Ben Tre Province. Final version of this movie will be released online within a month.
Another way for reducing the growth of Tall type coconut palm could be chemical, by using growth regulators and hormones such as auxins, gibberellins, etc... These chemicals could be injected in the stem at the right stage in order to see if they can reduce the vertical growth of Tall type coconut palms. The first step could be to make a complete bibliographic analyse of similar works conducted on other palms and plants; an then, somewhere in the world, to test it at true scale on coconut palms in the fields of a research centre. Unfortunately, I have presently no time for that. This could be a good subject for a Phd student, for instance. I could be interested in following such a student together with her/his national supervisors.
Kind regards
Roland