Concurrent starch accumulation in stump and high fruit production in coffee (Coffea arabica),Tree Physiology

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Concurrent starch accumulation in stump and high fruit production in coffee (Coffea arabica)
Tree Physiology ( IF 3.5 ) Pub Date : 2021-05-27 , DOI: 10.1093/treephys/tpab075
Aurélie Cambou ₁ , Philippe Thaler _{1,

2} , Anne Clément-Vidal _{3,

4} , Bernard G Barthès ₁ , Fabien Charbonnier _{1,

2,

5} , Karel Van den Meersche _{1,

2,

6} , Maria E Aguilar Vega ₆ , Jacques Avelino _{6,

7,

8} , Fabrice Davrieux _{9,

10} , Jean-Pierre Labouisse _{3,

4} , Elias de Melo Virginio Filho ₆ , Philippe Deleporte _{1,

2} , Didier Brunet ₁ , Peter Lehner ₁₁ , Olivier Roupsard _{1,

6,

12,

13}

Affiliation

Eco&Sols, Univ Montpellier, CIRAD, INRAE, IRD, Institut Agro, place Viala, 34060 Montpellier Cedex 2, France.
CIRAD, UMR Eco&Sols, place Viala, 34060 Montpellier Cedex 2, France.
CIRAD, UMR AGAP Institut, avenue Agropolis, 34398 Montpellier Cedex 5, France.
UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, avenue Agropolis, 34398 Montpellier Cedex 5, France.
CONACyT El Colegio de la Frontera Sur, Carretera panamericana y periférico sur s/n, Barrio María Auxiliadora, 29290 San Cristóbal de Las Casas, Chiapas, México.
CATIE, Agroforestry and Coffee and Cocoa Breeding Research Unit, 7170 Turrialba, 30501 Cartago, Costa Rica.
CIRAD, UMR PHIM, 7170 Turrialba, 30501 Cartago, Costa Rica.
PHIM Plant Health Institute, Univ Montpellier, CIRAD, INRAE, Institut Agro, IRD, avenue Agropolis, 34394 Montpellier Cedex 5, France.
Qualisud, Univ Montpellier, Avignon Université, CIRAD, Institut Agro, Université de La Réunion, rue Jean-François Breton, 34398 Montpellier Cedex 5, France.
CIRAD, UMR Qualisud, rue Joseph Wetzell, 97490 Sainte-Clotilde, Réunion, France.
Cafetalera Aquiares S.A., 7150 Turrialba, 30501 Cartago, Costa Rica.
CIRAD, UMR Eco&Sols, Route des Hydrocarbures, BP 1386, Dakar CP 18524, Senegal.
LMI IESOL, Centre IRD-ISRA de Bel Air, Route des Hydrocarbures, BP 1386, CP 18524, Dakar, Senegal.

In coffee, fruit production on a given shoot drops after some years of high yield, triggering pruning to induce re-sprouting. The timing of pruning is a crucial farmer’s decision affecting yield and labour. A reason explaining fruit production drop could be the exhaustion of resources, particularly the non-structural carbohydrates (NSC).

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