Assimilate storage in vegetative organs of coconut (Cocos nucifera) : [Abstract]
Assimilate storage in vegetative organs is an essential buffer for the source-sink imbalances that inevitably occur in perennial plants. In contrast to temperate trees, little information is available on such storage in tropical perennials, and almost none for coconut (Cocos nucifera). This poster describes the chemical nature, quantity, distribution and seasonal dynamics of carbohydrate reserves in 17-year-old adult coconut plants grown in optimum conditions (Republic of Vanuatu, southern Pacific). Plants contained little starch but large quantities of sucrose were found, mainly located in the trunk. Less sucrose was present in roots and little in leaflets. Large glucose and fructose pools were found in leaves near the apex of the trunk, in fruits and in the terminal portions of large roots. Aggregate soluble and non-soluble sugar pools were about equivalent to 6 months of copra production or 51 days of crop growth. Under our optimum conditions, these pools varied little, particularly in the trunk, but they may be mobilisable under stress conditions. The reserves did not seem to play a role in the regulation of production of fruit (in quantity). The number of fruits produced seemed to be controlled precociously during two stages - at the moment of differentiation of the flowers and at the beginning of growth of the fruit. Thereafter, the growth (in terms of dry biomass production) of fruit did not seem to be limited by the availability of sugars. (Texte intégral)
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Subjects: | F61 - Physiologie végétale - Nutrition, F62 - Physiologie végétale - Croissance et développement, Cocos nucifera, organe de réserve, glucide, saccharose, amidon, physiologie de la nutrition, fructose, développement biologique, fruit (botanique), croissance, http://aims.fao.org/aos/agrovoc/c_1716, http://aims.fao.org/aos/agrovoc/c_7430, http://aims.fao.org/aos/agrovoc/c_1300, http://aims.fao.org/aos/agrovoc/c_7495, http://aims.fao.org/aos/agrovoc/c_7369, http://aims.fao.org/aos/agrovoc/c_5275, http://aims.fao.org/aos/agrovoc/c_3118, http://aims.fao.org/aos/agrovoc/c_921, http://aims.fao.org/aos/agrovoc/c_3119, http://aims.fao.org/aos/agrovoc/c_3394, http://aims.fao.org/aos/agrovoc/c_5159, |
Online Access: | http://agritrop.cirad.fr/536300/ http://agritrop.cirad.fr/536300/1/Poster-processing-Cairns%202005%20def.pdf |
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dig-cirad-fr-5363002024-01-28T15:03:19Z http://agritrop.cirad.fr/536300/ http://agritrop.cirad.fr/536300/ Assimilate storage in vegetative organs of coconut (Cocos nucifera) : [Abstract]. Mialet-Serra Isabelle, Clément Anne, Sonderegger Nicole, Roupsard Olivier, Flori Albert, Jourdan Christophe, Labouisse Jean-Pierre, Dingkuhn Michaël. 2006. In : Coconut revival: new possibilities for the tree of life. Proceedings of the International Coconut Forum held in Cairns, Australia, 22-24 November 2005. Adkins Steve W. (ed.), Foale M.A. (ed.), Samosir Yohannes M.S. (ed.). Department of Employment, Economic Development and Innovation. Canberra : ACIAR, 99. (ACIAR Proceedings Series, 125) ISBN 1-86320-514-4 International Coconut Forum, Cairns, Australie, 22 Novembre 2005/24 Novembre 2005. Assimilate storage in vegetative organs of coconut (Cocos nucifera) : [Abstract] Mialet-Serra, Isabelle Clément, Anne Sonderegger, Nicole Roupsard, Olivier Flori, Albert Jourdan, Christophe Labouisse, Jean-Pierre Dingkuhn, Michaël eng 2006 ACIAR Coconut revival: new possibilities for the tree of life. Proceedings of the International Coconut Forum held in Cairns, Australia, 22-24 November 2005 F61 - Physiologie végétale - Nutrition F62 - Physiologie végétale - Croissance et développement Cocos nucifera organe de réserve glucide saccharose amidon physiologie de la nutrition fructose développement biologique fruit (botanique) croissance http://aims.fao.org/aos/agrovoc/c_1716 http://aims.fao.org/aos/agrovoc/c_7430 http://aims.fao.org/aos/agrovoc/c_1300 http://aims.fao.org/aos/agrovoc/c_7495 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_5275 http://aims.fao.org/aos/agrovoc/c_3118 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_3119 http://aims.fao.org/aos/agrovoc/c_3394 Vanuatu http://aims.fao.org/aos/agrovoc/c_5159 Assimilate storage in vegetative organs is an essential buffer for the source-sink imbalances that inevitably occur in perennial plants. In contrast to temperate trees, little information is available on such storage in tropical perennials, and almost none for coconut (Cocos nucifera). This poster describes the chemical nature, quantity, distribution and seasonal dynamics of carbohydrate reserves in 17-year-old adult coconut plants grown in optimum conditions (Republic of Vanuatu, southern Pacific). Plants contained little starch but large quantities of sucrose were found, mainly located in the trunk. Less sucrose was present in roots and little in leaflets. Large glucose and fructose pools were found in leaves near the apex of the trunk, in fruits and in the terminal portions of large roots. Aggregate soluble and non-soluble sugar pools were about equivalent to 6 months of copra production or 51 days of crop growth. Under our optimum conditions, these pools varied little, particularly in the trunk, but they may be mobilisable under stress conditions. The reserves did not seem to play a role in the regulation of production of fruit (in quantity). The number of fruits produced seemed to be controlled precociously during two stages - at the moment of differentiation of the flowers and at the beginning of growth of the fruit. Thereafter, the growth (in terms of dry biomass production) of fruit did not seem to be limited by the availability of sugars. (Texte intégral) conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/536300/1/Poster-processing-Cairns%202005%20def.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=194939 |
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F61 - Physiologie végétale - Nutrition F62 - Physiologie végétale - Croissance et développement Cocos nucifera organe de réserve glucide saccharose amidon physiologie de la nutrition fructose développement biologique fruit (botanique) croissance http://aims.fao.org/aos/agrovoc/c_1716 http://aims.fao.org/aos/agrovoc/c_7430 http://aims.fao.org/aos/agrovoc/c_1300 http://aims.fao.org/aos/agrovoc/c_7495 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_5275 http://aims.fao.org/aos/agrovoc/c_3118 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_3119 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5159 F61 - Physiologie végétale - Nutrition F62 - Physiologie végétale - Croissance et développement Cocos nucifera organe de réserve glucide saccharose amidon physiologie de la nutrition fructose développement biologique fruit (botanique) croissance http://aims.fao.org/aos/agrovoc/c_1716 http://aims.fao.org/aos/agrovoc/c_7430 http://aims.fao.org/aos/agrovoc/c_1300 http://aims.fao.org/aos/agrovoc/c_7495 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_5275 http://aims.fao.org/aos/agrovoc/c_3118 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_3119 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5159 |
spellingShingle |
F61 - Physiologie végétale - Nutrition F62 - Physiologie végétale - Croissance et développement Cocos nucifera organe de réserve glucide saccharose amidon physiologie de la nutrition fructose développement biologique fruit (botanique) croissance http://aims.fao.org/aos/agrovoc/c_1716 http://aims.fao.org/aos/agrovoc/c_7430 http://aims.fao.org/aos/agrovoc/c_1300 http://aims.fao.org/aos/agrovoc/c_7495 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_5275 http://aims.fao.org/aos/agrovoc/c_3118 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_3119 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5159 F61 - Physiologie végétale - Nutrition F62 - Physiologie végétale - Croissance et développement Cocos nucifera organe de réserve glucide saccharose amidon physiologie de la nutrition fructose développement biologique fruit (botanique) croissance http://aims.fao.org/aos/agrovoc/c_1716 http://aims.fao.org/aos/agrovoc/c_7430 http://aims.fao.org/aos/agrovoc/c_1300 http://aims.fao.org/aos/agrovoc/c_7495 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_5275 http://aims.fao.org/aos/agrovoc/c_3118 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_3119 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5159 Mialet-Serra, Isabelle Clément, Anne Sonderegger, Nicole Roupsard, Olivier Flori, Albert Jourdan, Christophe Labouisse, Jean-Pierre Dingkuhn, Michaël Assimilate storage in vegetative organs of coconut (Cocos nucifera) : [Abstract] |
description |
Assimilate storage in vegetative organs is an essential buffer for the source-sink imbalances that inevitably occur in perennial plants. In contrast to temperate trees, little information is available on such storage in tropical perennials, and almost none for coconut (Cocos nucifera). This poster describes the chemical nature, quantity, distribution and seasonal dynamics of carbohydrate reserves in 17-year-old adult coconut plants grown in optimum conditions (Republic of Vanuatu, southern Pacific). Plants contained little starch but large quantities of sucrose were found, mainly located in the trunk. Less sucrose was present in roots and little in leaflets. Large glucose and fructose pools were found in leaves near the apex of the trunk, in fruits and in the terminal portions of large roots. Aggregate soluble and non-soluble sugar pools were about equivalent to 6 months of copra production or 51 days of crop growth. Under our optimum conditions, these pools varied little, particularly in the trunk, but they may be mobilisable under stress conditions. The reserves did not seem to play a role in the regulation of production of fruit (in quantity). The number of fruits produced seemed to be controlled precociously during two stages - at the moment of differentiation of the flowers and at the beginning of growth of the fruit. Thereafter, the growth (in terms of dry biomass production) of fruit did not seem to be limited by the availability of sugars. (Texte intégral) |
format |
conference_item |
topic_facet |
F61 - Physiologie végétale - Nutrition F62 - Physiologie végétale - Croissance et développement Cocos nucifera organe de réserve glucide saccharose amidon physiologie de la nutrition fructose développement biologique fruit (botanique) croissance http://aims.fao.org/aos/agrovoc/c_1716 http://aims.fao.org/aos/agrovoc/c_7430 http://aims.fao.org/aos/agrovoc/c_1300 http://aims.fao.org/aos/agrovoc/c_7495 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_5275 http://aims.fao.org/aos/agrovoc/c_3118 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_3119 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_5159 |
author |
Mialet-Serra, Isabelle Clément, Anne Sonderegger, Nicole Roupsard, Olivier Flori, Albert Jourdan, Christophe Labouisse, Jean-Pierre Dingkuhn, Michaël |
author_facet |
Mialet-Serra, Isabelle Clément, Anne Sonderegger, Nicole Roupsard, Olivier Flori, Albert Jourdan, Christophe Labouisse, Jean-Pierre Dingkuhn, Michaël |
author_sort |
Mialet-Serra, Isabelle |
title |
Assimilate storage in vegetative organs of coconut (Cocos nucifera) : [Abstract] |
title_short |
Assimilate storage in vegetative organs of coconut (Cocos nucifera) : [Abstract] |
title_full |
Assimilate storage in vegetative organs of coconut (Cocos nucifera) : [Abstract] |
title_fullStr |
Assimilate storage in vegetative organs of coconut (Cocos nucifera) : [Abstract] |
title_full_unstemmed |
Assimilate storage in vegetative organs of coconut (Cocos nucifera) : [Abstract] |
title_sort |
assimilate storage in vegetative organs of coconut (cocos nucifera) : [abstract] |
publisher |
ACIAR |
url |
http://agritrop.cirad.fr/536300/ http://agritrop.cirad.fr/536300/1/Poster-processing-Cairns%202005%20def.pdf |
work_keys_str_mv |
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_version_ |
1792496611144761344 |