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Open AccessArticle

Effect of Propagation Method and Ploidy Level of Various Rootstocks on the Response of the Common Clementine (Citrus clementina Hort. ex Tan) to a Mild Water Deficit

1
Unité Mixte de Recherche (UMR) 6134 Sciences Pour l’Environnement (SPE), Centre National de la Recherche Scientifique (CNRS), Laboratoire Biochimie and Biologie Moléculaire du Végétal, Université de Corse, 20250 Corte, France
2
Institut National de Recherche Pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire de Physique et Physiologie Intégratives de l’Arbre Fruitier et Forestier (PIAF), Université Clermont Auvergne (UCA), 63000 Clermont-Ferrand, France
3
UMR-Amélioration Génétique et Adaptation des Plantes Méditerranéennes et Tropicales (AGAP), Centre de Coopération Internationale en Recherche Agronomique Pour le Développement (CIRAD), Equipe Structure Évolutive des Agrumes, Polyploïdie et Amélioration Génétique (SEAPAG), F-97170 Petit-Bourg, Guadeloupe, France
4
AGAP, Université de Montpellier, CIRAD, INRAE, Institut Agro, F-34398 Montpellier, France
5
Association de Recherche et d’Expérimentation sur les Fruits et Légumes en Corse (AREFLEC), F-20230 San Giuliano, France
*
Author to whom correspondence should be addressed.
These authors have contributed equally to this work.
Agriculture 2020, 10(8), 321; https://doi.org/10.3390/agriculture10080321
Received: 9 July 2020 / Revised: 23 July 2020 / Accepted: 24 July 2020 / Published: 2 August 2020
(This article belongs to the Special Issue Impact of Climate Change on Agriculture)
Current climatic upheavals reduce water availability which impacts the growth and fruit quality of plants. In citrus crops, scion/rootstock combinations are used to ensure high fruit production and quality and a stress tolerance/resistance. Our objective was to assess the effect on the clementine scion (C) under natural mild water deficit of (i) polyploid rootstocks by comparing the allotetraploid FlhorAG1 (C/4xFLs; trifoliate orange + Willowleaf mandarin) with its diploid parents, trifoliate orange (C/2xTOs), and Willowleaf mandarin (C/2xWLs), and with a diploid genotype used as reference (Carrizo citrange, C/2xCCs), (ii) rootstock propagation methods by comparing trifoliate orange seedling (C/2xTOs) with cutting (C/2xTOc). A mild water deficit observed under orchard conditions during the summer period (July–August) induced a significant change in yield (except in C/2xTOs), fruit size, and quality. C/2xCCs, C/2xTOs, and C/2xWLs appeared less affected by water deficit as indicated by their lower reduction of predawn leaf water potential (Ψpd), relative water content (RWC), transpiration (E), and photosynthetic parameters (Pnet and gs). Their greater redox balance was probably due to their better antioxidant efficiency. Seedling rootstocks lead to a better adaptation of clementine scions to water deficit than cutting or allotetraploid rootstock. Improving the tolerance to water deficit requires taking into consideration the rootstock genotype, propagation method, and ploidy level. View Full-Text
Keywords: antioxidant; Citrus; fruit parameters; oxidative stress; photosynthetic capacity; water deficit antioxidant; Citrus; fruit parameters; oxidative stress; photosynthetic capacity; water deficit
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MDPI and ACS Style

Oustric, J.; Lourkisti, R.; Herbette, S.; Morillon, R.; Paolacci, G.; Gonzalez, N.; Berti, L.; Santini, J. Effect of Propagation Method and Ploidy Level of Various Rootstocks on the Response of the Common Clementine (Citrus clementina Hort. ex Tan) to a Mild Water Deficit. Agriculture 2020, 10, 321. https://doi.org/10.3390/agriculture10080321

AMA Style

Oustric J, Lourkisti R, Herbette S, Morillon R, Paolacci G, Gonzalez N, Berti L, Santini J. Effect of Propagation Method and Ploidy Level of Various Rootstocks on the Response of the Common Clementine (Citrus clementina Hort. ex Tan) to a Mild Water Deficit. Agriculture. 2020; 10(8):321. https://doi.org/10.3390/agriculture10080321

Chicago/Turabian Style

Oustric, Julie; Lourkisti, Radia; Herbette, Stéphane; Morillon, Raphaël; Paolacci, Gilles; Gonzalez, Noémie; Berti, Liliane; Santini, Jérémie. 2020. "Effect of Propagation Method and Ploidy Level of Various Rootstocks on the Response of the Common Clementine (Citrus clementina Hort. ex Tan) to a Mild Water Deficit" Agriculture 10, no. 8: 321. https://doi.org/10.3390/agriculture10080321

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