Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soils

Autores
Luna, Dario Fernando; Aguirre, A.; Pittaro, Gabriela; Bustos, Dolores Angela; Ciacci, María Belén; Taleisnik, Edith
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Alkaline and saline–alkaline soils impose severe restrictions on plant growth. Panicum coloratum var. coloratum is a perennial C4 forage grass widely used in tropical and subtropical environments. Published information on its responses to alkaline soil conditions is scarce. The objectives of this study were (i) to characterize the effects of alkaline substrates on germination and initial growth in this species, (ii) to assess the influence of high pH in combination with reduced availability of either nutrients or oxygen and salinity, on plant growth and (iii) to evaluate some physiological traits potentially responsible for growth restrictions under alkaline soil conditions. Trials were conducted in a greenhouse. Germination and early plant survival were not affected by alkalinity. To isolate the effects of high pH, reduced nutrient and oxygen availability on growth, plants were grown either in neutral or alkaline soil, in hydroponics, in neutralized alkaline soil (with or without supplementary fertilization), or were flooded to induce hypoxia. Alkalinity effects on growth in hydroponics were milder than in soil. Growth in alkaline soil with nutrient supplement was still significantly lower (by 40%) than in neutral soil. Both alkalinity and hypoxia reduced growth non‐synergistically. These results show that studies of plant response to alkaline substrates carried out in aerated nutrient solutions can only partially address the complexity of this stress. Photosynthesis and PSII activity were among the physiological mechanisms negatively affected by alkalinity and may be partially responsible for the growth limitations observed in P. coloratum under alkaline conditions.
Instituto de Fisiología y Recursos Genéticos Vegetales
Fil: Luna, Dario Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Aguirre, A. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Pittaro, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Bustos, Dolores Angela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Ciacci, María Belén. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Taleisnik, Edith. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo de Investigaciones Científicas y Técnicas; Argentina
Fuente
Grass and forage science 72 (4) : 640–653. (December 2017)
Materia
Panicum Coloratum
Deficiencias Nutritivas
Anoxia
Suelo Alcalino
Nutrient Deficiencies
Alkaline Soils
Chlorophyll Fluorescence
JIP Analysis
Fluorescencia Clorofílica
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/4692
Acceder
id INTADig_04f6468ec9504557375ecd1dcdfa39aa
oai_identifier_str oai:localhost:20.500.12123/4692
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soilsLuna, Dario FernandoAguirre, A.Pittaro, GabrielaBustos, Dolores AngelaCiacci, María BelénTaleisnik, EdithPanicum ColoratumDeficiencias NutritivasAnoxiaSuelo AlcalinoNutrient DeficienciesAlkaline SoilsChlorophyll FluorescenceJIP AnalysisFluorescencia ClorofílicaAlkaline and saline–alkaline soils impose severe restrictions on plant growth. Panicum coloratum var. coloratum is a perennial C4 forage grass widely used in tropical and subtropical environments. Published information on its responses to alkaline soil conditions is scarce. The objectives of this study were (i) to characterize the effects of alkaline substrates on germination and initial growth in this species, (ii) to assess the influence of high pH in combination with reduced availability of either nutrients or oxygen and salinity, on plant growth and (iii) to evaluate some physiological traits potentially responsible for growth restrictions under alkaline soil conditions. Trials were conducted in a greenhouse. Germination and early plant survival were not affected by alkalinity. To isolate the effects of high pH, reduced nutrient and oxygen availability on growth, plants were grown either in neutral or alkaline soil, in hydroponics, in neutralized alkaline soil (with or without supplementary fertilization), or were flooded to induce hypoxia. Alkalinity effects on growth in hydroponics were milder than in soil. Growth in alkaline soil with nutrient supplement was still significantly lower (by 40%) than in neutral soil. Both alkalinity and hypoxia reduced growth non‐synergistically. These results show that studies of plant response to alkaline substrates carried out in aerated nutrient solutions can only partially address the complexity of this stress. Photosynthesis and PSII activity were among the physiological mechanisms negatively affected by alkalinity and may be partially responsible for the growth limitations observed in P. coloratum under alkaline conditions.Instituto de Fisiología y Recursos Genéticos VegetalesFil: Luna, Dario Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Aguirre, A. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Pittaro, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Bustos, Dolores Angela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Ciacci, María Belén. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Taleisnik, Edith. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo de Investigaciones Científicas y Técnicas; ArgentinaWiley; British Grassland Society; European Grassland Federation2019-03-21T13:32:36Z2019-03-21T13:32:36Z2017-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/46921365-2494 (Online)https://doi.org/10.1111/gfs.12263Grass and forage science 72 (4) : 640–653. (December 2017)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:36Zoai:localhost:20.500.12123/4692instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:36.749INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soils
title Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soils
spellingShingle Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soils
Luna, Dario Fernando
Panicum Coloratum
Deficiencias Nutritivas
Anoxia
Suelo Alcalino
Nutrient Deficiencies
Alkaline Soils
Chlorophyll Fluorescence
JIP Analysis
Fluorescencia Clorofílica
title_short Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soils
title_full Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soils
title_fullStr Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soils
title_full_unstemmed Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soils
title_sort Nutrient deficiency and hypoxia as constraints to Panicum coloratum growth in alkaline soils
dc.creator.none.fl_str_mv Luna, Dario Fernando
Aguirre, A.
Pittaro, Gabriela
Bustos, Dolores Angela
Ciacci, María Belén
Taleisnik, Edith
author Luna, Dario Fernando
author_facet Luna, Dario Fernando
Aguirre, A.
Pittaro, Gabriela
Bustos, Dolores Angela
Ciacci, María Belén
Taleisnik, Edith
author_role author
author2 Aguirre, A.
Pittaro, Gabriela
Bustos, Dolores Angela
Ciacci, María Belén
Taleisnik, Edith
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Panicum Coloratum
Deficiencias Nutritivas
Anoxia
Suelo Alcalino
Nutrient Deficiencies
Alkaline Soils
Chlorophyll Fluorescence
JIP Analysis
Fluorescencia Clorofílica
topic Panicum Coloratum
Deficiencias Nutritivas
Anoxia
Suelo Alcalino
Nutrient Deficiencies
Alkaline Soils
Chlorophyll Fluorescence
JIP Analysis
Fluorescencia Clorofílica
dc.description.none.fl_txt_mv Alkaline and saline–alkaline soils impose severe restrictions on plant growth. Panicum coloratum var. coloratum is a perennial C4 forage grass widely used in tropical and subtropical environments. Published information on its responses to alkaline soil conditions is scarce. The objectives of this study were (i) to characterize the effects of alkaline substrates on germination and initial growth in this species, (ii) to assess the influence of high pH in combination with reduced availability of either nutrients or oxygen and salinity, on plant growth and (iii) to evaluate some physiological traits potentially responsible for growth restrictions under alkaline soil conditions. Trials were conducted in a greenhouse. Germination and early plant survival were not affected by alkalinity. To isolate the effects of high pH, reduced nutrient and oxygen availability on growth, plants were grown either in neutral or alkaline soil, in hydroponics, in neutralized alkaline soil (with or without supplementary fertilization), or were flooded to induce hypoxia. Alkalinity effects on growth in hydroponics were milder than in soil. Growth in alkaline soil with nutrient supplement was still significantly lower (by 40%) than in neutral soil. Both alkalinity and hypoxia reduced growth non‐synergistically. These results show that studies of plant response to alkaline substrates carried out in aerated nutrient solutions can only partially address the complexity of this stress. Photosynthesis and PSII activity were among the physiological mechanisms negatively affected by alkalinity and may be partially responsible for the growth limitations observed in P. coloratum under alkaline conditions.
Instituto de Fisiología y Recursos Genéticos Vegetales
Fil: Luna, Dario Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Aguirre, A. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Pittaro, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Bustos, Dolores Angela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Ciacci, María Belén. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Taleisnik, Edith. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo de Investigaciones Científicas y Técnicas; Argentina
description Alkaline and saline–alkaline soils impose severe restrictions on plant growth. Panicum coloratum var. coloratum is a perennial C4 forage grass widely used in tropical and subtropical environments. Published information on its responses to alkaline soil conditions is scarce. The objectives of this study were (i) to characterize the effects of alkaline substrates on germination and initial growth in this species, (ii) to assess the influence of high pH in combination with reduced availability of either nutrients or oxygen and salinity, on plant growth and (iii) to evaluate some physiological traits potentially responsible for growth restrictions under alkaline soil conditions. Trials were conducted in a greenhouse. Germination and early plant survival were not affected by alkalinity. To isolate the effects of high pH, reduced nutrient and oxygen availability on growth, plants were grown either in neutral or alkaline soil, in hydroponics, in neutralized alkaline soil (with or without supplementary fertilization), or were flooded to induce hypoxia. Alkalinity effects on growth in hydroponics were milder than in soil. Growth in alkaline soil with nutrient supplement was still significantly lower (by 40%) than in neutral soil. Both alkalinity and hypoxia reduced growth non‐synergistically. These results show that studies of plant response to alkaline substrates carried out in aerated nutrient solutions can only partially address the complexity of this stress. Photosynthesis and PSII activity were among the physiological mechanisms negatively affected by alkalinity and may be partially responsible for the growth limitations observed in P. coloratum under alkaline conditions.
publishDate 2017
dc.date.none.fl_str_mv 2017-12
2019-03-21T13:32:36Z
2019-03-21T13:32:36Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/4692
1365-2494 (Online)
https://doi.org/10.1111/gfs.12263
url http://hdl.handle.net/20.500.12123/4692
https://doi.org/10.1111/gfs.12263
identifier_str_mv 1365-2494 (Online)
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley; British Grassland Society; European Grassland Federation
publisher.none.fl_str_mv Wiley; British Grassland Society; European Grassland Federation
dc.source.none.fl_str_mv Grass and forage science 72 (4) : 640–653. (December 2017)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
_version_ 1844619131899346944
score 12.559606

Publicaciones similares