Loading content, please wait..
loading..
Logo
Version 3.22
or
Authors Bazzigalupi, O; Pistorale, SM; Andres, AN
Author Full Name Bazzigalupi, Omar; Pistorale, Susana M.; Andres, Adriana N.
Title Salinity tolerance during seed germination from naturalized populations of tall wheatgrass (Thinopyrum ponticum).
Source CIENCIA E INVESTIGACION AGRARIA
Language Spanish
Document Type Article
Author Keywords Germination; saline stress; tall wheatgrass; Thinopyrum ponticum; variability
Keywords Plus SALT TOLERANCE; NACL TOLERANCE; HERITABILITY; ACCUMULATION; RESPONSES; GROWTH; LINES
Abstract The phenotypic variability among ten adapted populations of tall wheatgrass (Thinopyrum ponticum) germinating under saline stress conditions was evaluated its part of it breeding program. The aim of the breeding program was to provide flew cultivars of tall wheatgrass adapted to saline soil conditions. Saline soils represent 8% of the total agricultural soil surface in Argentina. Seeds were sown on towel paper (30 g.m(-2)) and germinated with alternating light and darkness (16 and 8 h, respectively) and temperature (20-30 degrees C), under 0.60, 135 y 220 mM NaCl treatments, equivalent to electric conductivity of 0, 6, 12 y 18 dS.m(-1). Treatments were distributed in a randomized complete block design, with a factorial arrangement of 4 x 11, four salinity treatments x eleven tall wheargrass populations; four replications were carried out, consisting of 25 seeds per experiment. The germination percentage and germination index were calculated. The results indicated large differences between populations and between treatments for both attributes. The mean germination percentage decreased 4.2, 18.6 and 61.0%, as compared to the control, as electric conductivity increased to 6, 12 and 18 dS.m(-1), respectively. Differences between populations were significant only in 18 dS.m(-1). The germination index had a similar performance with the increase in electric conductivity (y = 28.827x-35.091, R-2 = 0.9092). Population number 3 had the best germination and index performance. At 18 dS.m(-1), all populations had a variable number of seeds with germination capacity. Therefore, this electric conductivity could be adequate for a salt tolerance breeding and selection program.
Author Address [Bazzigalupi, Omar; Andres, Adriana N.] Inst Nacl Tecnol Agropecuari, Estac Expt Agropecuaria Pergamino, Buenos Aires, DF, Argentina; [Pistorale, Susana M.] Univ Nacl Lujan, Dept Ciencias Basicas, Buenos Aires, DF, Argentina
Reprint Address Bazzigalupi, O (corresponding author), Inst Nacl Tecnol Agropecuari, Estac Expt Agropecuaria Pergamino, Casilla 31-2700, Buenos Aires, DF, Argentina.
E-mail Address obazzigalupi@pergamino.inta.gov.ar
Times Cited 8
Total Times Cited Count (WoS, BCI, and CSCD) 12
Publisher PONTIFICIA UNIV CATOLICA CHILE, FAC AGRONOMIA INGENIERIA FORESTAL
Publisher City SANTIAGO
Publisher Address AV VICUNA MACKENNA 4860, SANTIAGO, 00000, CHILE
ISSN 0718-1620
29-Character Source Abbreviation CIENC INVESTIG AGRAR
ISO Source Abbreviation Cienc. Investig. Agrar.
Publication Date SEP-DEC
Year Published 2008
Volume 35
Issue 3
Beginning Page 277
Ending Page 285
Page Count 9
Web of Science Category Agriculture, Multidisciplinary
Subject Category Agriculture
Document Delivery Number 380JG
Unique Article Identifier WOS:000261461400005
Plants associated with this reference

LEGAL NOTICES — This website is protected by Copyright © The University of Sussex, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021. The eHALOPH database is protected by Database Right and Copyright © The University of Sussex and other contributors, 2006, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021. This database is based on an earlier work by James Aronson.
THIS WEBSITE AND THIS DATABASE ARE PROVIDED ON AN "AS IS" BASIS, AND YOU USE THEM AND RELY ON THEM AT YOUR OWN RISK.

Contact email: halophytes@sussex.ac.uk
Credits – Tim Flowers, Joaquim Santos, Moritz Jahns, Brian Warburton, Peter Reed