Importance of Ionic and Osmotic Components of Salt Stress on the Germination of Four Quinua (Chenopodium quinoa Willd.) Selections

The influence of the components of saline stress (osmotic and ionic factors) were evaluated during the germination of four quinua (Chenopodium quinoa Willd.) selections in Chile, two collected in the arid northern highland region with saline soils (Amarilla and Roja) and the other two from the rainy...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Delatorre-Herrera,José, Pinto,Manuel
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2009
Materias:	salinity imbibition seeds NaCl altiplano desert
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400001
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-58392009000400001
record_format	dspace
spelling	oai:scielo:S0718-583920090004000012018-10-01Importance of Ionic and Osmotic Components of Salt Stress on the Germination of Four Quinua (Chenopodium quinoa Willd.) SelectionsDelatorre-Herrera,JoséPinto,Manuel salinity imbibition seeds NaCl altiplano desert The influence of the components of saline stress (osmotic and ionic factors) were evaluated during the germination of four quinua (Chenopodium quinoa Willd.) selections in Chile, two collected in the arid northern highland region with saline soils (Amarilla and Roja) and the other two from the rainy southern region with non-saline soils (Hueque and Pucura). The seeds were treated with different saline concentrations (0, 0.2, 0.4, 0.8 and 1.2 M NaCl). Germination kinetics shows that the control treatments of the four selections reach 100% germination. With application of 0.4 M NaCl (LD50max) germination was reduced by 53% in the Amarilla selection and 89.9% in Hueque. The germination rate was lower for the seeds from non-saline areas, which reached germination after 22 h, compared to 10 h for Amarilla. By separating the salinity stress factors (osmotic and ionic), it is evident that they have different degrees of influence on quinua germination, according to each selection. Thus, the germination of Amarilla selection from the arid area was the least influenced by the ionic factor (27%), Pucura and Roja were more affected by the ionic factor (40% and 46% respectively), and Hueque, from the rainy area, was more affected by the osmotic factor, in which caused a 50% loss in germination.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.69 n.4 20092009-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400001en10.4067/S0718-58392009000400001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	salinity imbibition seeds NaCl altiplano desert
spellingShingle	salinity imbibition seeds NaCl altiplano desert Delatorre-Herrera,José Pinto,Manuel Importance of Ionic and Osmotic Components of Salt Stress on the Germination of Four Quinua (Chenopodium quinoa Willd.) Selections
description	The influence of the components of saline stress (osmotic and ionic factors) were evaluated during the germination of four quinua (Chenopodium quinoa Willd.) selections in Chile, two collected in the arid northern highland region with saline soils (Amarilla and Roja) and the other two from the rainy southern region with non-saline soils (Hueque and Pucura). The seeds were treated with different saline concentrations (0, 0.2, 0.4, 0.8 and 1.2 M NaCl). Germination kinetics shows that the control treatments of the four selections reach 100% germination. With application of 0.4 M NaCl (LD50max) germination was reduced by 53% in the Amarilla selection and 89.9% in Hueque. The germination rate was lower for the seeds from non-saline areas, which reached germination after 22 h, compared to 10 h for Amarilla. By separating the salinity stress factors (osmotic and ionic), it is evident that they have different degrees of influence on quinua germination, according to each selection. Thus, the germination of Amarilla selection from the arid area was the least influenced by the ionic factor (27%), Pucura and Roja were more affected by the ionic factor (40% and 46% respectively), and Hueque, from the rainy area, was more affected by the osmotic factor, in which caused a 50% loss in germination.
author	Delatorre-Herrera,José Pinto,Manuel
author_facet	Delatorre-Herrera,José Pinto,Manuel
author_sort	Delatorre-Herrera,José
title	Importance of Ionic and Osmotic Components of Salt Stress on the Germination of Four Quinua (Chenopodium quinoa Willd.) Selections
title_short	Importance of Ionic and Osmotic Components of Salt Stress on the Germination of Four Quinua (Chenopodium quinoa Willd.) Selections
title_full	Importance of Ionic and Osmotic Components of Salt Stress on the Germination of Four Quinua (Chenopodium quinoa Willd.) Selections
title_fullStr	Importance of Ionic and Osmotic Components of Salt Stress on the Germination of Four Quinua (Chenopodium quinoa Willd.) Selections
title_full_unstemmed	Importance of Ionic and Osmotic Components of Salt Stress on the Germination of Four Quinua (Chenopodium quinoa Willd.) Selections
title_sort	importance of ionic and osmotic components of salt stress on the germination of four quinua (chenopodium quinoa willd.) selections
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400001
work_keys_str_mv	AT delatorreherrerajose importanceofionicandosmoticcomponentsofsaltstressonthegerminationoffourquinuachenopodiumquinoawilldselections AT pintomanuel importanceofionicandosmoticcomponentsofsaltstressonthegerminationoffourquinuachenopodiumquinoawilldselections
_version_	1714205274262208512

Importance of Ionic and Osmotic Components of Salt Stress on the Germination of Four Quinua (Chenopodium quinoa Willd.) Selections

Ejemplares similares