Response to Chilling of Zea mays, Tripsacum dactyloides and their Hybrid

dc.creatorJatimliansky, Jaime Raúl
dc.creatorGarcía, M.D.
dc.creatorMolina, M.C.
dc.date2004-12-01
dc.date2022-09-29T16:52:16Z
dc.date.accessioned2023-07-15T04:55:25Z
dc.date.available2023-07-15T04:55:25Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/143009
dc.identifierissn:0006-3134
dc.identifierissn:1573-8264
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7471404
dc.descriptionMaize (Zea mays ssp. mays) and eastern gamagrass (Tripsacum dactyloides) are known for their susceptibility to chilling injuries. Their hybrid (Z. mays × T. dactyloides) showed higher tolerance to low temperatures (−2 °C) in the field than its parents. Exposure to 5 °C for 2 or 3 d reduced the variable to maximal chlorophyll fluorescence ratio (FV/FM), an indicator of the maximum photochemical efficiency of the photosystem 2, and the variable to minimal fluorescence ratio (FV/F0) more in maize and eastern gamagrass than in hybrid plants. Chlorophyll contents for rewarming plants (25 °C for 3 d) were lower than before chilling in both parents while values for hybrid plants were similar. Electrolyte leakage was higher in chilled than control plants but it did not show significant differences among genotypes. Our data suggest that hybrid plants have higher capacity to recover from chilling injury in controlled conditions than their parents.
dc.descriptionFacultad de Ciencias Agrarias y Forestales
dc.formatapplication/pdf
dc.format561-567
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.subjectCiencias Agrarias
dc.subjectMaize
dc.subjectEastern Gamagrass
dc.subjectChilling Tolerance
dc.subjectChlorophyll Fluorescence
dc.subjectIntergeneric Hybrid
dc.titleResponse to Chilling of Zea mays, Tripsacum dactyloides and their Hybrid
dc.typeArticulo
dc.typeArticulo


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