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Abstract
Plant breeding of wheat and triticale in Argentina is based on the objective of improving an individual crop, with respect to resistance to drought stress. The use of gamma radiation holds promise for physiological crop improvement. The objective of this study was to determine and compare the effect of different gamma radiation doses on the germination and seedling growth of Argentine wheat and triticale cultivars. Seeds of wheat cv. Baguette 10 and [ver mas...]
dc.contributor.authorDi Pane, Francisco
dc.contributor.authorLopez, Silvia Concepción
dc.contributor.authorCantamutto, Miguel Angel
dc.contributor.authorDomenech, Marisa Beatriz
dc.contributor.authorCastro Franco, Mauricio
dc.date.accessioned2020-04-06T14:18:59Z
dc.date.available2020-04-06T14:18:59Z
dc.date.issued2018-12
dc.identifier.issn1835-2693
dc.identifier.issn1835-2707
dc.identifier.otherhttps://doi.org/10.21475/ajcs.18.12.12.p1251
dc.identifier.urihttps://www.cropj.com/pane_12_12_2018_1921_1926.pdf
dc.identifier.urihttp://hdl.handle.net/20.500.12123/7045
dc.description.abstractPlant breeding of wheat and triticale in Argentina is based on the objective of improving an individual crop, with respect to resistance to drought stress. The use of gamma radiation holds promise for physiological crop improvement. The objective of this study was to determine and compare the effect of different gamma radiation doses on the germination and seedling growth of Argentine wheat and triticale cultivars. Seeds of wheat cv. Baguette 10 and triticale cv. Espinillo INTA were irradiated at doses of 0, 50, 200, 400, 550, 700, 850 and 1000 Gy s-1. The final germination percentage (FGP), sprout length (SL) and median lethal dose (LD50) were used as metrics of germination, seedling growth and lethal dose, respectively. Two experimental designs were used. First, a completely randomized factorial was used to compare the effect of the doses within species by using ANOVA; second, a completely repeated measures design was used to evaluate the effect of days after germination on plant survival by species using a mixed linear model. The results suggest that at the early germination stage, gamma radiation limited root growth and stem length. The FGP of wheat seeds was significantly affected by gamma radiation at a dose of 550 Gy, whereas triticale seeds were significantly affected at a dose of 700 Gy. The SL of both species was similarly affected at 50 Gy. The stem mortality of wheat and triticale seeds increased at an increasing gamma radiation dose and days after germination. Finally, the LD50 value for wheat and triticale seeds was ~450 Gy. These results might be useful to set a benchmark of the effect of the gamma radiation dose to induce mutations in wheat and triticale seeds from Argentine cultivars.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSouthern Cross Publishinges_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceAustralian Journal of Crop Science 12 (12) : 1921-1926 (2018)es_AR
dc.subjectFitomejoramientoes_AR
dc.subjectPlant Breedingeng
dc.subjectRadiación Gammaes_AR
dc.subjectGamma Radiationeng
dc.subjectTrigoes_AR
dc.subjectWheateng
dc.subjectTriticosecalees_AR
dc.subjectVariedadeses_AR
dc.subjectVarietieseng
dc.subjectCrecimientoes_AR
dc.subjectGrowtheng
dc.subjectArgentinaes_AR
dc.titleEffect of different gamma radiation doses on the germination and seedling growth of wheat and triticale cultivarses_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 Barrowes_AR
dc.description.filFil: Di Pane, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Barrow; Argentinaes_AR
dc.description.filFil: Lopez, Silvia Concepción. Comisión Nacional Energía Atómica (CNEA). División Aplicaciones Agronómicas; Argentinaes_AR
dc.description.filFil: Cantamutto, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentinaes_AR
dc.description.filFil: Domenech, Marisa Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Integrada Barrow; Argentinaes_AR
dc.description.filFil: Castro Franco, Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.subtypecientifico


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