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Mostrando ítems 41-60 de 184
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Differential characteristics of photochemical acclimation to cold in two contrasting sweet sorghum hybrids
(Wiley; Scandinavian Plant Physiology Society, 2016-08)Sweet sorghum has a photosynthetic system which is highly sensitive to cold stress and hence strongly limits its development in temperate environments; therefore, the identification of key exploitable cold tolerance traits ... -
Differential response of Trichloris ecotypes from different habitats to drought and salt stress
(Springer, 2020-08-05)Native plant genetic resources have evolved from long processes of natural selection and adaptation to specific environments, and have developed tolerance to various stresses prevailing in their natural habitats via adaptive ... -
Differential salt-stress response during germination and vegetative growth in in vitro selected somaclonal mutants of Cenchrus ciliaris L.
(2013-07)Four somaclonal mutants (S1, S4, S6 and M10) and their parental Cenchrus ciliaris L. cultivar Biloela were characterized under salinity conditions at germination and vegetative growth stages. Seeds of all somaclonal mutants ... -
Diversidad e infectividad de hongos micorrícicos arbusculares nativos provenientes de algarrobales del Parque Chaqueño argentino con características edafoclimáticas contrastantes
(Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, 2018)En ambientes severos, la presencia de hongos micorrícicos arbusculares (HMA) es clave para la supervivencia de las plantas y el balance ecosistémico. El objetivo de este trabajo fue caracterizar los hongos micorrícicos ... -
Diversity and stress tolerance in rhizobia from Parque Chaqueño region of Argentina nodulating Prosopis alba
(Springer, 2013-11)The aim of this work was to investigate the genetic diversity, symbiotic effectiveness, drought tolerance, and indole acetic acid production of indigenous rhizobial populations in the Parque Chaqueño of Argentina able to ... -
Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
(Society for Experimental Biology, 2005-01)Plants co-ordinate information derived from many diverse external and internal signals to ensure appropriate control of gene expression under optimal and stress conditions. In this work, the relationships between catalase ... -
Drought induces distinct growth response, protection, and recovery mechanisms in the maize leaf growth zone
(2015-10)Drought is the most important crop yield-limiting factor, and detailed knowledge of its impact on plant growth regulation is crucial. The maize (Zea mays) leaf growth zone offers unique possibilities for studying the ... -
Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids
(Springer, 2013-02)Natural hybridization commonly produces individuals with intermediate morphological and genetic characteristics, but their response to environmental stress is still uncertain, with some studies showing that transgressive ... -
Early responses to Fe-deficiency distinguish Sorghum bicolor genotypes with contrasting alkalinity tolerance
(Elsevier, 2018-11)Soil alkalinity is a significant limitation to agricultural productivity and it is associated to several soil features, among them, Fe deficiencies. In this work, we explored the hypothesis that alkalinity tolerance in ... -
Ecophysiological mechanisms underlying the positive relationship between seed protein concentration and yield in soybean under field heat and drought stress
(Wiley, 2024-06)A positive relationship between protein concentration and yield has been documented in different combinations of genotype and environment, often under potential conditions. However, the ecophysiological bases underlying ... -
Editorial: Legumes and their microbiome in climate change mitigation
(Frontiers Media, 2023-06-12)Climate change accelerates or enhances the incidence of a variety of abiotic and biotic stresses on agricultural and forest productivity. By changing different aspects of agriculture management, we can lower the risk of ... -
Efecto del espaciamiento entre plantas sobre la calidad de semillas en buffel grass
(Asociación Argentina de Producción Animal, 2023-09-13)Buffel grass es una pastura perenne que, en situación de sequía, muestra plasticidad en crecimiento y producción de biomasa. La disponibilidad de semillas en el mercado es escasa y poco estudiada en su producción. Objetivo: ... -
Efecto del espaciamiento entre plantas sobre la producción de semillas y sus componentes en buffel grass
(Asociación Argentina de Producción Animal, 2022-11-16)La oferta de nuevo germoplasma forrajero adaptado a condiciones de déficit hídrico es fundamental en regiones afectadas negativamente por la variabilidad climática con períodos prolongados y marcados de sequía, acentuados ... -
Effect of water stress in Megathyrsus maximus during vegetative growth and early selection of promising genotypes
(Sociedad Argentina de Fisiología Vegetal, 2023-10)Megathyrsus maximus is a cultivated forage grass in tropical and subtropical regions of the world. In Argentina it is widely used in livestock systems due to its high production and forage quality. However, climatic ... -
Elongation growth in leaf blades of Chloris gayana under saline conditions
(Elsevier, 2003)In Chloris gayana, salinity-associated yield decreases are due mainly to leaf area reductions. To understand the physiological basis for such reduction, the effects of salinity were studied on the spatial and temporal ... -
Enmienda Orgánica de Suelo y su Efecto Sobre el Cultivo de Lechuga
(Secretaría de Ciencia, Técnica y Posgrado, Universidad Nacional de Cuyo, 2019-09-18)En el marco de las actividades de Investigación Acción Participativa (IAP) con productores del cinturón verde de Córdoba para la transición hacia sistemas productivos agroecológicos como proceso de innovación y mejora ... -
Environmental influence on reproductive traits of buffel grass facultative apomictic genotypes and its implication in plant breeding
(Wiley, 2023-10-04)Cenchrus ciliaris L., a perennial C4 grass, is one of the most widely used forage species in warm and dry regions worldwide. The widespread use of the cultivar Texas raises concerns about genetic homogeneity and vulnerability. ... -
Episodios de alta temperatura y déficit hídrico en soja: cinética de acumulación de componentes químicos del grano y biosíntesis de tocoferoles
(Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, 2023-12-04)La soja [Glycine max (L.) Merr.], abastece más del 59% de la demanda global de proteína (Pr) y aceite (Ac) vegetal. El cultivo se realiza mayoritariamente bajo secano y suele atravesar eventos de alta temperatura y/o ... -
Estrategias adaptativas de Cenchrus ciliaris L. frente al estrés hídrico y su impacto en la calidad forrajera
(Asociación Argentina de Producción Animal, 2022-11-16)El objetivo de este trabajo fue estudiar las estrategias adaptativas morfo fisiológicas, que contribuyen a la tolerancia al estrés hídrico en genotipos contrastantes de C ciliaris L y su impacto sobre la calidad forrajera. -
Estrés y muerte celular programada en leguminosas: efectos de la expresión de supresores de muerte celular
(Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, 2012)En leguminosas, condiciones de estrés aceleran el proceso de senescencia e inducen muerte celular, comprometiendo la asimilación del carbono, la fijación biológica del nitrógeno y en consecuencia el crecimiento y la ...