Overcoming seed dormancy of junglerice (Echinochloa colona)

Autores
Picapietra, Gabriel; Acciaresi, Horacio Abel
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Junglerice (Echinochloa colona L. Link) seed dormancy can persist 8 months after harvest and, once overcome, seeds can germinate over a long period of time. Light or high temperatures could overcome seed dormancy, while the effects of seed coat softening and nitrate addition are not well known. This study aimed to determine the germinative response, persistence and treatments to overcome seed dormancy of junglerice. Seed samples were taken from a monoculture crop (soybean, S1) and a 3-yr rotation crop (wheat/soybean-corn-soybean, S2). Every 3 wk for 30 wk, hot-water washed (WW) seeds were evaluated. After 33 wk of storage, the effects of potassium nitrate (KNO3), dehulling (DE), WW, previous water immersion (IM) and exogenous gibberellic acid (GA) were evaluated in three different experiments (pre-germinative tests with KNO3, DE and WW; KNO3 and IM; and GA). The results showed that seed dormancy persisted until 21 wk. From 21 to 30 wk, germination response increased by 25 and 59 % on WW-treated seeds from S1 and S2, respectively. After 33 wk of storage, only KNO3 was significantly higher (p < 0.05), with 88 and 126 % increases in seed germination in S1 and S2, respectively. These results indicate that junglerice seed dormancy is not related to glumes. Hot water improves the germinative response probably due to an acceleration in post-harvest maturation, while KNO3 is a positive regulator to overcome seed dormancy.
EEA Pergamino
Fil: Picapietra, Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Malezas; Argentina
Fil: Picapietra, Gabriel. Universidad Nacional del noroeste de la Provincia de Buenos Aires. Escuela de Ciencias Agrarias, Naturales y Ambientales (ECANA); Argentina
Fil: Acciaresi, Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Malezas; Argentina
Fil: Acciaresi, Horacio. Provincia de Buenos Aires. Comisión de Investigaciones Científicas (CIC); Argentina
Fuente
Chilean Journal of Agricultural & Animal Sciences 38 (2) : 154-163. (may - august 2022)
Materia
Malezas
Echinochloa colona
Germinación
Semilla
Dormición
Salida de la Latencia
Métodos de Aplicación
Weeds
Germination
Seeds
Dormancy
Dormancy Breaking
Application Methods
Hot-water Washing
Water Immersion
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/14153
Acceder
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oai_identifier_str oai:localhost:20.500.12123/14153
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Overcoming seed dormancy of junglerice (Echinochloa colona)Picapietra, GabrielAcciaresi, Horacio AbelMalezasEchinochloa colonaGerminaciónSemillaDormiciónSalida de la LatenciaMétodos de AplicaciónWeedsGerminationSeedsDormancyDormancy BreakingApplication MethodsHot-water WashingWater ImmersionJunglerice (Echinochloa colona L. Link) seed dormancy can persist 8 months after harvest and, once overcome, seeds can germinate over a long period of time. Light or high temperatures could overcome seed dormancy, while the effects of seed coat softening and nitrate addition are not well known. This study aimed to determine the germinative response, persistence and treatments to overcome seed dormancy of junglerice. Seed samples were taken from a monoculture crop (soybean, S1) and a 3-yr rotation crop (wheat/soybean-corn-soybean, S2). Every 3 wk for 30 wk, hot-water washed (WW) seeds were evaluated. After 33 wk of storage, the effects of potassium nitrate (KNO3), dehulling (DE), WW, previous water immersion (IM) and exogenous gibberellic acid (GA) were evaluated in three different experiments (pre-germinative tests with KNO3, DE and WW; KNO3 and IM; and GA). The results showed that seed dormancy persisted until 21 wk. From 21 to 30 wk, germination response increased by 25 and 59 % on WW-treated seeds from S1 and S2, respectively. After 33 wk of storage, only KNO3 was significantly higher (p < 0.05), with 88 and 126 % increases in seed germination in S1 and S2, respectively. These results indicate that junglerice seed dormancy is not related to glumes. Hot water improves the germinative response probably due to an acceleration in post-harvest maturation, while KNO3 is a positive regulator to overcome seed dormancy.EEA PergaminoFil: Picapietra, Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Malezas; ArgentinaFil: Picapietra, Gabriel. Universidad Nacional del noroeste de la Provincia de Buenos Aires. Escuela de Ciencias Agrarias, Naturales y Ambientales (ECANA); ArgentinaFil: Acciaresi, Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Malezas; ArgentinaFil: Acciaresi, Horacio. Provincia de Buenos Aires. Comisión de Investigaciones Científicas (CIC); ArgentinaUniversidad de Concepción (Chile)2023-03-06T17:53:38Z2023-03-06T17:53:38Z2022-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/14153https://revistas.udec.cl/index.php/chjaas/article/view/72470719-38820719-3890 (on line)https://doi.org/10.29393/CHJAA38-15OSGH20015Chilean Journal of Agricultural & Animal Sciences 38 (2) : 154-163. (may - august 2022)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-04T09:49:44Zoai:localhost:20.500.12123/14153instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:49:45.431INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Overcoming seed dormancy of junglerice (Echinochloa colona)
title Overcoming seed dormancy of junglerice (Echinochloa colona)
spellingShingle Overcoming seed dormancy of junglerice (Echinochloa colona)
Picapietra, Gabriel
Malezas
Echinochloa colona
Germinación
Semilla
Dormición
Salida de la Latencia
Métodos de Aplicación
Weeds
Germination
Seeds
Dormancy
Dormancy Breaking
Application Methods
Hot-water Washing
Water Immersion
title_short Overcoming seed dormancy of junglerice (Echinochloa colona)
title_full Overcoming seed dormancy of junglerice (Echinochloa colona)
title_fullStr Overcoming seed dormancy of junglerice (Echinochloa colona)
title_full_unstemmed Overcoming seed dormancy of junglerice (Echinochloa colona)
title_sort Overcoming seed dormancy of junglerice (Echinochloa colona)
dc.creator.none.fl_str_mv Picapietra, Gabriel
Acciaresi, Horacio Abel
author Picapietra, Gabriel
author_facet Picapietra, Gabriel
Acciaresi, Horacio Abel
author_role author
author2 Acciaresi, Horacio Abel
author2_role author
dc.subject.none.fl_str_mv Malezas
Echinochloa colona
Germinación
Semilla
Dormición
Salida de la Latencia
Métodos de Aplicación
Weeds
Germination
Seeds
Dormancy
Dormancy Breaking
Application Methods
Hot-water Washing
Water Immersion
topic Malezas
Echinochloa colona
Germinación
Semilla
Dormición
Salida de la Latencia
Métodos de Aplicación
Weeds
Germination
Seeds
Dormancy
Dormancy Breaking
Application Methods
Hot-water Washing
Water Immersion
dc.description.none.fl_txt_mv Junglerice (Echinochloa colona L. Link) seed dormancy can persist 8 months after harvest and, once overcome, seeds can germinate over a long period of time. Light or high temperatures could overcome seed dormancy, while the effects of seed coat softening and nitrate addition are not well known. This study aimed to determine the germinative response, persistence and treatments to overcome seed dormancy of junglerice. Seed samples were taken from a monoculture crop (soybean, S1) and a 3-yr rotation crop (wheat/soybean-corn-soybean, S2). Every 3 wk for 30 wk, hot-water washed (WW) seeds were evaluated. After 33 wk of storage, the effects of potassium nitrate (KNO3), dehulling (DE), WW, previous water immersion (IM) and exogenous gibberellic acid (GA) were evaluated in three different experiments (pre-germinative tests with KNO3, DE and WW; KNO3 and IM; and GA). The results showed that seed dormancy persisted until 21 wk. From 21 to 30 wk, germination response increased by 25 and 59 % on WW-treated seeds from S1 and S2, respectively. After 33 wk of storage, only KNO3 was significantly higher (p < 0.05), with 88 and 126 % increases in seed germination in S1 and S2, respectively. These results indicate that junglerice seed dormancy is not related to glumes. Hot water improves the germinative response probably due to an acceleration in post-harvest maturation, while KNO3 is a positive regulator to overcome seed dormancy.
EEA Pergamino
Fil: Picapietra, Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Malezas; Argentina
Fil: Picapietra, Gabriel. Universidad Nacional del noroeste de la Provincia de Buenos Aires. Escuela de Ciencias Agrarias, Naturales y Ambientales (ECANA); Argentina
Fil: Acciaresi, Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Malezas; Argentina
Fil: Acciaresi, Horacio. Provincia de Buenos Aires. Comisión de Investigaciones Científicas (CIC); Argentina
description Junglerice (Echinochloa colona L. Link) seed dormancy can persist 8 months after harvest and, once overcome, seeds can germinate over a long period of time. Light or high temperatures could overcome seed dormancy, while the effects of seed coat softening and nitrate addition are not well known. This study aimed to determine the germinative response, persistence and treatments to overcome seed dormancy of junglerice. Seed samples were taken from a monoculture crop (soybean, S1) and a 3-yr rotation crop (wheat/soybean-corn-soybean, S2). Every 3 wk for 30 wk, hot-water washed (WW) seeds were evaluated. After 33 wk of storage, the effects of potassium nitrate (KNO3), dehulling (DE), WW, previous water immersion (IM) and exogenous gibberellic acid (GA) were evaluated in three different experiments (pre-germinative tests with KNO3, DE and WW; KNO3 and IM; and GA). The results showed that seed dormancy persisted until 21 wk. From 21 to 30 wk, germination response increased by 25 and 59 % on WW-treated seeds from S1 and S2, respectively. After 33 wk of storage, only KNO3 was significantly higher (p < 0.05), with 88 and 126 % increases in seed germination in S1 and S2, respectively. These results indicate that junglerice seed dormancy is not related to glumes. Hot water improves the germinative response probably due to an acceleration in post-harvest maturation, while KNO3 is a positive regulator to overcome seed dormancy.
publishDate 2022
dc.date.none.fl_str_mv 2022-08
2023-03-06T17:53:38Z
2023-03-06T17:53:38Z
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/20.500.12123/14153
https://revistas.udec.cl/index.php/chjaas/article/view/7247
0719-3882
0719-3890 (on line)
https://doi.org/10.29393/CHJAA38-15OSGH20015
url http://hdl.handle.net/20.500.12123/14153
https://revistas.udec.cl/index.php/chjaas/article/view/7247
https://doi.org/10.29393/CHJAA38-15OSGH20015
identifier_str_mv 0719-3882
0719-3890 (on line)
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad de Concepción (Chile)
publisher.none.fl_str_mv Universidad de Concepción (Chile)
dc.source.none.fl_str_mv Chilean Journal of Agricultural & Animal Sciences 38 (2) : 154-163. (may - august 2022)
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
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score 12.623145

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