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resumen

Resumen
Poncirus trifoliata is the most important rootstock in citrus production in Argentina. The seeds exhibit slow and uneven germination due to physical dormancy associated with the presence of seed coats. The objectives of this research were to select the most efficient chemical scarification procedures for P. trifoliata seeds, and assess the effects of such procedures on imbibition and vigor. A first experiment was conducted to assess the efficiency of [ver mas...]
dc.contributor.authorCatraro, Marcela Andrea
dc.contributor.authorPoggi, Damián René
dc.contributor.authorQuadrelli, Agustín Ricardo
dc.contributor.authorGarcía, Leonardo Martín
dc.contributor.authorGariglio, Norberto Francisco
dc.contributor.authorFlores, Patricia Cecilia
dc.date.accessioned2019-07-12T17:21:52Z
dc.date.available2019-07-12T17:21:52Z
dc.date.issued2018
dc.identifier.issn1096-0724
dc.identifier.urihttps://stjournal.org/?s2member_file_download=/STJ_V39N1-2018/53-62%20STJ_V39N1-2018.pdf
dc.identifier.urihttp://hdl.handle.net/20.500.12123/5494
dc.description.abstractPoncirus trifoliata is the most important rootstock in citrus production in Argentina. The seeds exhibit slow and uneven germination due to physical dormancy associated with the presence of seed coats. The objectives of this research were to select the most efficient chemical scarification procedures for P. trifoliata seeds, and assess the effects of such procedures on imbibition and vigor. A first experiment was conducted to assess the efficiency of three chemical scarification methods and their effects on seed vigor. Vigor was determined as the germination velocity index (GVI) and mean time to maximum germination (MTMG). A second experiment was conducted to assess seed vigor and the role of seed coats in imbibition, by comparing the most effective chemical scarification method identified in the first experiment to manual removal of both seed coats and no removal of seed coats. Percentage germination, the vigor indices GVI and MTMG, and the conductivity test (CT) were determined. Scarification with sodium hypochlorite showed the best results. The imbibition curve of seeds with both seed coats reflected an exponential weight increase, seeds with only the testa removed had a linear weight increase, whereas fresh weight of seeds with both testa and tegmen removed followed a hyperbolic change. CT indicated that chemically scarified seeds had no significant increase in conductivity compared to seeds with intact seed coats. Scarification with sodium hypochlorite was the most effective treatment for removing the testa and also improved seed vigor.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherAssociation of Official Seed Analysts and the Society of Commercial Seed Technologists
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceSeed technology 39 (1) : 53-62. (2018)es_AR
dc.subjectPoncitrus trifoliataes_AR
dc.subjectPlantas para Patrónes_AR
dc.subjectRootstock Cropseng
dc.subjectTratamiento de Semillases_AR
dc.subjectSeed Treatmenteng
dc.subjectEscarificaciónes_AR
dc.subjectScarificationeng
dc.subjectTestaes_AR
dc.subjectRemojoes_AR
dc.subjectVigor de la Semillaes_AR
dc.subjectSeed Vigoureng
dc.subjectSeed Soakingeng
dc.titleImbibition and vigor of chemically scarified Poncirus trifoliata seedses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA San Pedroes_AR
dc.description.filFil: Catraro, Marcela Andrea. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Poggi, Damián René. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Quadrelli, Agustín Ricardo. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: García, Leonardo Martín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Pedro; Argentinaes_AR
dc.description.filFil: Gariglio, Norberto Francisco. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Flores, Patricia Cecilia. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.subtypecientifico


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