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Évaluation de la résistance de dix porte-greffes d’agrumes résistants à la tristeza vis-à-vis du déficit hydrique

(2011) FRUITS. 66(6). p.373-384
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Organization
Abstract
Introduction. In Morocco, citriculture faces up an increasing combination of biotic (Citrus tristeza virus (CTV) / Phytophthora spp.) and abiotic stresses (salinity, alkalinity and drought). Most of these constraints should be individually managed by adapted rootstock choice. However, the spread of CTV in the Mediterranean Basin will soon prohibit the use of the traditional sour orange rootstock, which currently provides sufficient tolerance to salinity and alkalinity. Therefore, the selection of new citrus rootstocks becomes urgent. Our study sought to investigate the effect of different water regimes on growth of ten citrus rootstocks: citrange Carrizo (France), citrange Carrizo (Morocco), citrange Troyer, citrange Yuma, Citrus volkameriana; two Poncirus trifoliata of different origins, citrumelo, Mand. Sunki x Poncirus trifoliata, and Poorman. Materials and methods. For each rootstock, three months old seedlings were grown in plastic pots (0.5 L) in a greenhouse at El Menzeh, INRA, Morocco; they were subjected to three water regimes [(100%, 75% and 50%) moisture field capacity (Hcc) of the substrate]. The experiment was arranged in a split-plot design with three treatments. The morphological parameters measured were the plant height and dry and fresh matter accumulation. Physiological parameters studied were the Relative Water Content, transpiration rates and chlorophyll, soluble sugars and proline contents. Results. The morphological and physiological parameters were affected by the intensity of water stress applied. However, rootstocks behaved differently regarding to this constraint. Water stress induced an increase in the proline and soluble sugars content in the rootstock leaves. Conclusion. Water stress significantly affects the physiological and morphological characteristics of citrus rootstocks and, in conditions of extreme water deficit (50% Hcc), a differential behavior of the rootstock was found. Based on our results, the rootstocks Carrizo citrange (Morocco) and Poorman present the best overall ability to withstand water stress.
Keywords
GROWTH, VULGARIS L., PLANTS, RESPONSES, QTL ANALYSIS, PROLINE ACCUMULATION, OSMOTIC ADJUSTMENT, SALT TOLERANCE, Morocco, Citrus, rootstocks, drought stress, drought resistance, proline, carbohydrate content, DROUGHT STRESS, PHOTOSYNTHESIS

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MLA
Beniken, Lhou et al. “Évaluation De La Résistance De Dix Porte-greffes D’agrumes Résistants à La Tristeza Vis-à-vis Du Déficit Hydrique.” FRUITS 66.6 (2011): 373–384. Print.
APA
Beniken, L., Beqqali, M., Dahan, R., Benkirane, R., Omari, F. E., Benazouz, A., Benyahia, H., et al. (2011). Évaluation de la résistance de dix porte-greffes d’agrumes résistants à la tristeza vis-à-vis du déficit hydrique. FRUITS, 66(6), 373–384.
Chicago author-date
Beniken, Lhou, Mohamed Beqqali, Rachid Dahan, Rachid Benkirane, Fatima Ezahra Omari, Abdelkadir Benazouz, Hamid Benyahia, and Fatima Gaboun. 2011. “Évaluation De La Résistance De Dix Porte-greffes D’agrumes Résistants à La Tristeza Vis-à-vis Du Déficit Hydrique.” Fruits 66 (6): 373–384.
Chicago author-date (all authors)
Beniken, Lhou, Mohamed Beqqali, Rachid Dahan, Rachid Benkirane, Fatima Ezahra Omari, Abdelkadir Benazouz, Hamid Benyahia, and Fatima Gaboun. 2011. “Évaluation De La Résistance De Dix Porte-greffes D’agrumes Résistants à La Tristeza Vis-à-vis Du Déficit Hydrique.” Fruits 66 (6): 373–384.
Vancouver
1.
Beniken L, Beqqali M, Dahan R, Benkirane R, Omari FE, Benazouz A, et al. Évaluation de la résistance de dix porte-greffes d’agrumes résistants à la tristeza vis-à-vis du déficit hydrique. FRUITS. 2011;66(6):373–84.
IEEE
[1]
L. Beniken et al., “Évaluation de la résistance de dix porte-greffes d’agrumes résistants à la tristeza vis-à-vis du déficit hydrique,” FRUITS, vol. 66, no. 6, pp. 373–384, 2011.
@article{4314632,
  abstract     = {Introduction. In Morocco, citriculture faces up an increasing combination of biotic (Citrus tristeza virus (CTV) / Phytophthora spp.) and abiotic stresses (salinity, alkalinity and drought). Most of these constraints should be individually managed by adapted rootstock choice. However, the spread of CTV in the Mediterranean Basin will soon prohibit the use of the traditional sour orange rootstock, which currently provides sufficient tolerance to salinity and alkalinity. Therefore, the selection of new citrus rootstocks becomes urgent. Our study sought to investigate the effect of different water regimes on growth of ten citrus rootstocks: citrange Carrizo (France), citrange Carrizo (Morocco), citrange Troyer, citrange Yuma, Citrus volkameriana; two Poncirus trifoliata of different origins, citrumelo, Mand. Sunki x Poncirus trifoliata, and Poorman.
Materials and methods. For each rootstock, three months old seedlings were grown in plastic pots (0.5 L) in a greenhouse at El Menzeh, INRA, Morocco; they were subjected to three water regimes [(100%, 75% and 50%) moisture field capacity (Hcc) of the substrate]. The experiment was arranged in a split-plot design with three treatments. The morphological parameters measured were the plant height and dry and fresh matter accumulation. Physiological parameters studied were the Relative Water Content, transpiration rates and chlorophyll, soluble sugars and proline contents.
Results. The morphological and physiological parameters were affected by the intensity of water stress applied. However, rootstocks behaved differently regarding to this constraint. Water stress induced an increase in the proline and soluble sugars content in the rootstock leaves.
Conclusion. Water stress significantly affects the physiological and morphological characteristics of citrus rootstocks and, in conditions of extreme water deficit (50% Hcc), a differential behavior of the rootstock was found. Based on our results, the rootstocks Carrizo citrange (Morocco) and Poorman present the best overall ability to withstand water stress.},
  author       = {Beniken, Lhou and Beqqali, Mohamed and Dahan, Rachid and Benkirane, Rachid and Omari, Fatima Ezahra and Benazouz, Abdelkadir and Benyahia, Hamid and Gaboun, Fatima},
  issn         = {0248-1294},
  journal      = {FRUITS},
  keywords     = {GROWTH,VULGARIS L.,PLANTS,RESPONSES,QTL ANALYSIS,PROLINE ACCUMULATION,OSMOTIC ADJUSTMENT,SALT TOLERANCE,Morocco,Citrus,rootstocks,drought stress,drought resistance,proline,carbohydrate content,DROUGHT STRESS,PHOTOSYNTHESIS},
  language     = {fre},
  number       = {6},
  pages        = {373--384},
  title        = {Évaluation de la résistance de dix porte-greffes d’agrumes résistants à la tristeza vis-à-vis du déficit hydrique},
  url          = {http://dx.doi.org/10.1051/fruits/2011053},
  volume       = {66},
  year         = {2011},
}

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