000149789 001__ 149789
000149789 005__ 20250127155744.0
000149789 0247_ $$2doi$$a10.3390/agriculture15030254
000149789 0248_ $$2sideral$$a142195
000149789 037__ $$aART-2025-142195
000149789 041__ $$aeng
000149789 100__ $$aRius-García, Xavier
000149789 245__ $$aEvaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels
000149789 260__ $$c2025
000149789 5060_ $$aAccess copy available to the general public$$fUnrestricted
000149789 5203_ $$aIncreasing soil salinity threatens almond production globally, driving the need for the development of salt-tolerant cultivars. This study investigated the salt tolerance mechanisms of four self-rooted almond genotypes (Vialfas, Guara, Penta, and Avijor) under controlled conditions. Young plants were exposed to four salinity levels (0, 25, 50, and 75 mM NaCl) for 5 months. Growth parameters (trunk diameter, shoot length, fresh and dry weights), physiological responses (chlorophyll fluorescence, gas exchange, Soil–Plant Analysis Development (SPAD)), and mineral content were analyzed. Results show significant genotype-specific responses at the critical salinity threshold of 50 mM NaCl. Under these conditions, Guara and Vialfas maintained higher stem fresh weights (31.4 g and 37 g, respectively), while Avijor showed significant declines. Trunk diameter measurements revealed Vialfas’ superior performance (7 mm) compared to Guara and Penta (both around 6 mm), while Avijor exhibited the most significant reduction (5 mm). Chlorophyll fluorescence parameters indicated stress impact, with Fv/Fm values decreasing to 0.84 compared to control values of 0.87. Guara maintained higher K+/Na+ ratios in leaves (3.05) compared to Avijor (1.95), while Penta showed better Na+ exclusion ability with the lowest leaf Na+ content (0.57%). Cl− accumulation patterns also differed among genotypes, with Avijor and Vialfas showing higher leaf Cl− concentrations (0.74% and 0.73%, respectively) compared to Penta (0.44%). Genotype responses across all salinity levels revealed distinct tolerance patterns: Guara maintained growth and physiological functions across treatments, while Penta showed remarkable stability under high salinity. Vialfas exhibited vigor at low salinity but declined sharply at 75 mM NaCl. Avijor demonstrated the highest salt sensitivity. These findings highlight the genetic variability in salt tolerance among almond cultivars and identify potential sources of salt-tolerant traits for breeding programs. The study also provides insights for optimizing genotype selection and management strategies in salt-affected orchards, contributing to more sustainable almond production in challenging environments.
000149789 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000149789 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000149789 700__ $$0(orcid)0000-0002-3630-7931$$aVidegain-Marco, María$$uUniversidad de Zaragoza
000149789 700__ $$0(orcid)0000-0003-3009-0935$$aCasanova-Gascón, José$$uUniversidad de Zaragoza
000149789 700__ $$aAcuña-Rello, Luis
000149789 700__ $$0(orcid)0000-0003-2368-9878$$aZufiaurre-Galarza, Raquel$$uUniversidad de Zaragoza
000149789 700__ $$aMartín-Ramos, Pablo
000149789 7102_ $$12009$$2750$$aUniversidad de Zaragoza$$bDpto. Química Analítica$$cÁrea Química Analítica
000149789 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000149789 7102_ $$15011$$2705$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Producción Vegetal
000149789 773__ $$g15, 3 (2025), 254 [27 pp.]$$pAgriculture (Basel)$$tAgriculture (Basel)$$x2077-0472
000149789 8564_ $$s11836786$$uhttps://zaguan.unizar.es/record/149789/files/texto_completo.pdf$$yVersión publicada
000149789 8564_ $$s2699865$$uhttps://zaguan.unizar.es/record/149789/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000149789 909CO $$ooai:zaguan.unizar.es:149789$$particulos$$pdriver
000149789 951__ $$a2025-01-27-14:43:21
000149789 980__ $$aARTICLE