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Interspecific interactions regulate plant reproductive allometry in cereal-legume intercropping systems
Noémie Gaudio
1
Cyrille Violle
2
Xavier Gendre
3
Florian Fort
2
Rémi Mahmoud
1
Elise Pelzer
4
Safia Médiène
4
Henrik Hauggaard-Nielsen
5
Laurent Bedoussac
1, 6
Catherine Bonnet
1
Guénaëlle Corre-Hellou
7
Antoine Couëdel
1
Philippe Hinsinger
8
Erik Steen Jensen
9
Etienne-Pascal Journet
1, 10
Eric Justes
11
Bochra Kammoun
1
Isabelle Litrico
12
Nathalie Moutier
13
Christophe Naudin
7
Pierre Casadebaig
1
Noémie Gaudio 1
Author IdHAL : noemie-gaudio ORCID : https://orcid.org/0000-0002-4528-9851
Cyrille Violle 2
Author
Xavier Gendre 3
Author
Florian Fort 2
Author
Rémi Mahmoud 1
Author
Elise Pelzer 4
Author
Safia Médiène 4
Author
Henrik Hauggaard-Nielsen 5
Author
Laurent Bedoussac 1, 6
Author IdHAL : laurent-bedoussac ORCID : https://orcid.org/0000-0002-4609-2460 IDP INRA : https://test.federation.renater.fr/idp/shibbolethlbedoussac ResearcherId : http://www.researcherid.com/rid/S-7206-2018
Catherine Bonnet 1
Author Employer institution : Institut National de Recherche en Informatique et en Automatique
Guénaëlle Corre-Hellou 7
Author
Antoine Couëdel 1
Author
Philippe Hinsinger 8
Author Employer institution : Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement IdHAL : philippe-hinsinger ORCID : https://orcid.org/0000-0001-5458-1259
Erik Steen Jensen 9
Author
Etienne-Pascal Journet 1, 10
Author
Eric Justes 11
Author
Bochra Kammoun 1
Author
Isabelle Litrico 12
Author
Nathalie Moutier 13
Author Employer institution : Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement IdHAL : nathalie-moutier
Christophe Naudin 7
Author
Pierre Casadebaig 1
Author IdHAL : pierre-casadebaig ORCID : https://orcid.org/0000-0001-7225-936X
1
AGIR - AGroécologie, Innovations, teRritoires (Centre de Recherches INRA de Toulouse Chemin de Borderouge 31326 CASTANET TOLOSAN - France)
- Toulouse INP - Institut National Polytechnique (Toulouse) (France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement : UMR1248 (France)
2
CEFE - Centre d’Ecologie Fonctionnelle et Evolutive (Centre National de la Recherche Scientifique - 1919 route de Mende - 34293 Montpellier CEDEX 5 - France)
- UPVM - Université Paul-Valéry - Montpellier 3 : UMR 5175 (Université Paul Valéry Montpellier 3 Route de Mende 34199 Montpellier Cedex 5 - France)
- EPHE - École pratique des hautes études : UMR 5175 (4-14 Rue Ferrus, 75014 Paris - France)
- PSL - Université Paris sciences et lettres (60 rue Mazarine 75006 Paris - France)
- UM - Université de Montpellier : UMR 5175 (163 rue Auguste Broussonnet - 34090 Montpellier - France)
- CNRS - Centre National de la Recherche Scientifique : UMR 5175 (France)
- IRD [France-Sud] - Institut de Recherche pour le Développement : UMR 5175 (911 avenue Agropolis, BP 64501 34394 Montpellier cedex 5 - France)
- INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement : UMR 5175 (France)
- Institut Agro - Montpellier SupAgro (2, place Viala - Montpellier - France)
3
ISAE-SUPAERO - Institut Supérieur de l'Aéronautique et de l'Espace (ISAE - 10 av. Edouard Belin - BP 54032 - 31055 TOULOUSE Cedex 4 - France)
4
Agronomie (F-78850 Thiverval-Grignon - France)
- AgroParisTech (16 rue Claude Bernard F-75231 Paris Cedex 05 - France)
- Université Paris-Saclay (Bâtiment Bréguet, 3 Rue Joliot Curie 2e ét, 91190 Gif-sur-Yvette - France)
- INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement : UMR0211 (France)
5
Roskilde Universitet [Roskilde] (Universitetsvej 1
Bygning: 43.2
DK-4000 Roskilde - Denmark)
6
ENSFEA - École Nationale Supérieure de Formation de l'Enseignement Agricole de Toulouse-Auzeville (BP 22687
2 Route de Narbonne, 31326 Castanet Tolosan Cedex - France)
7
ESA - Ecole supérieure d'Agricultures d'Angers (Enseignement supérieur et recherche en agriculture, alimentation, territoires et marchés
55 Rue Rabelais, 49007 Angers – 02 41 23 55 55
- France)
8
UMR Eco&Sols - Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (place Viala, 34060 Montpellier, France - France)
- Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement : UMR111 (Siège 42, rue Scheffer 75116 Paris - France)
- IRD - Institut de Recherche pour le Développement (Siège Le Sextant 44, bd de Dunkerque CS 90009 13572 Marseille cedex 02 - France)
- INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement : UMR1222 (France)
- Institut Agro - Montpellier SupAgro (2, place Viala - Montpellier - France)
9
SLU - Swedish University of Agricultural Sciences (S-750 07 Uppsala - Sweden)
10
LIPME - Laboratoire des Interactions Plantes Microbes Environnement (Chemin de Borde-Rouge - BP 27 31326 CASTANET TOLOSAN CEDEX - Changement de libellé et de sigle le 1er janvier 2021 - Ancien libellé : Laboratoire des interactions plantes micro-organismes - Ancien sigle : LIPM - France)
- CNRS - Centre National de la Recherche Scientifique : UMR2594 (France)
- INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement : UMR0441 (France)
11
Direction Persyst - Direction du département Performances des systèmes de production et de transformation tropicaux (Avenue Agropolis - TA B-DIR / 09 - 34398 Montpellier Cedex 5 - France)
- Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Siège 42, rue Scheffer 75116 Paris - France)
12
P3F - Unité de Recherche Pluridisciplinaire Prairies et Plantes Fourragères (LUSIGNAN - France)
13
IGEPP - Institut de Génétique, Environnement et Protection des Plantes (Domaine de la Motte au Vicomte BP 35327
35653 Le Rheu - France)
- UR1 - Université de Rennes 1 : UMR1349 (2 rue du Thabor - CS 46510 - 35065 Rennes cedex - France)
- UNIV-RENNES - Université de Rennes (France)
- INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement : UMR1349 (France)
- INSTITUT AGRO Agrocampus Ouest (65 rue de Saint Brieuc CS 84215 35042 Rennes CEDEX - France)
Abstract : Calls for ecological principles in agriculture have gained momentum. Intercropping systems have long been designed by growing two, or more, annual crop species in the same field, aiming for a better resource use efficiency. However, assembly rules for their design are lacking. Notably, it is still unknown whether species performances are maximized during both the vegetative and reproductive phases given the sensitivity of reproductive allocation rules to resource limitation. Interestingly, ecological theory provides expectations regarding putative invariance of plant reproductive allometry (PRA) under non-limiting conditions for plant growth. Here we examined whether and how PRA changes in response to plant-plant interactions in intercropping systems, which can inform both ecological theory and the understanding of the functioning of intercropping systems. We analyzed a dataset of 28 field cereal-legume intercropping trials from various climatic and management conditions across Western Europe. PRA was quantified in both mixing and single-species situations. PRA was positively impacted in specific management conditions, leading to a greater increase in yield for a given increase in plant size. Variations in PRA were more beneficial for legumes grown in unfertilized mixture, which explains their use as a key component in actual intercrop systems. The response for cereals was similar but less pronounced in magnitude, and was greater under limiting resource conditions. Focusing on intercropping conditions, hierarchical competition (indicated by biomass difference between intercropped species) appears as a strong driver of the reproductive output of a given species. Synthesis and applications. Plant reproductive allometry behaves in crop species in the same way as it does in wild species. However, contrary to theoretical expectations about an overall invariance of PRA, we highlighted taxon-specific and context-dependent effects of plant-plant interactions on PRA. This systematic deviation to PRA expectations could be leveraged to cultivate each species up to its reproductive optimum while accounting for the performance of the other, whether farmer’s objective is to favor one species or to reach an equilibrium in seed production. Sowing density and cultivar choice could regulate the biomass of each component, with specific targets derived from allometric relationships, aiming for an optimal reproductive allocation in mixtures.
Document type :
Preprints, Working Papers, ...
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https://hal.inrae.fr/hal-03333878
Contributor : Pierre Casadebaig Connect in order to contact the contributor
Submitted on : Friday, September 3, 2021 - 11:57:37 AM
Last modification on : Friday, May 20, 2022 - 9:04:59 AM
Long-term archiving on: : Saturday, December 4, 2021 - 6:56:46 PM
Contributor : Pierre Casadebaig Connect in order to contact the contributor
Submitted on : Friday, September 3, 2021 - 11:57:37 AM
Last modification on : Friday, May 20, 2022 - 9:04:59 AM
Long-term archiving on: : Saturday, December 4, 2021 - 6:56:46 PM
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Identifiers
- HAL Id : hal-03333878, version 1
- BIORXIV : 2021.06.17.448782
- DOI : 10.1101/2021.06.17.448782
Collections
INRAE | AGROPARISTECH | PSL | UNIV-RENNES1 | AGRONOMIE | CIRAD | UNIV-MONTP3 | UNIV-MONTPELLIER | UNIV-RENNES | EPHE | CNRS | MONTPELLIER-SUPAGRO | B3ESTE | IRD | INRAEOCCITANIEMONTPELLIER | CEFE | UR1-ENV | GS-BIOSPHERA | AGIR | UR1-UFR-SVE | ENSFEA | UNIV-PARIS-SACLAY | ECOSOLS | INRAENOUVELLEAQUITAINEPOITIERS | UNAM
Citation
Noémie Gaudio, Cyrille Violle, Xavier Gendre, Florian Fort, Rémi Mahmoud, et al.. Interspecific interactions regulate plant reproductive allometry in cereal-legume intercropping systems. 2021. ⟨hal-03333878⟩
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