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Authors Rogers, ME
Author Full Name Rogers, M. E.
Title The response of four perennial grass species to sodium chloride salinity when irrigated with saline waters
Source AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH
Language English
Document Type Article
Author Keywords Austrodanthonia bipartita; Austrodanthonia richardsonii; Lolium perenne; Thinopyrum ponticum; saline irrigation
Keywords Plus DANTHONIA-RICHARDSONII CASHMORE; SALT TOLERANCE; AGRICULTURAL USE; LINKII KUNTH; ROOT-GROWTH; DOMESTICATION; MECHANISMS; AUSTRALIA; PHALARIS; AREAS
Abstract The response of 4 temperate grass species ( Lolium perenne cv. Victorian, Thinopyrum ponticum cv. Tyrell, Austrodanthonia richardsonii cv. Taranna, A. bipartita cv. Bunderra) to saline irrigated conditions was evaluated over 4 seasons at Tatura in northern Victoria. This experiment followed earlier research where the salt tolerance of similar to 20 species of grasses was evaluated in the greenhouse. Field plots were established under non-saline conditions and were irrigated with saline water at 1.6, 2.5, and 4.5 dS/m. Measurements made on these plots included dry-matter production, tissue ion (Na+, Cl-, K+, Mg2+, Ca2+) concentrations, in vitro dry-matter digestibility, root distribution, and soil chemistry. Soil salinity (EC1:5) and sodicity (SAR(1:5)) levels peaked at 0.30-0.60m depth and reached 1.3 dS/m and 9.8, respectively, for the highest saline irrigation treatment. Cumulative plant dry-matter production was lower in T. ponticum compared with the Austrodanthonia species and L. perenne at all salinity levels, but in relative terms there was no difference in the salt tolerance among any of the 4 species (the reduction in dry weight at 4.5 dS/m was 10-15% for all species). Leaf tissue concentrations of Na+ and Cl- were significantly lower in A. richardsonii and A. bipartita compared with T. ponticum and L. perenne, and in vitro dry-matter digestibility tended to be greater in L. perenne under saline conditions than in the other 3 species. This research suggests that the 2 native Austrodanthonia species can be grown under moderately saline conditions-either under saline irrigation or in a dryland discharge area-in environments where perennial ryegrass may also be grown.
Author Address Dept Primary Ind, Tatura, Vic 3616, Australia
Reprint Address Rogers, ME (corresponding author), Dept Primary Ind, Private Bag,Ferguson Rd, Tatura, Vic 3616, Australia.
E-mail Address maryjane.rogers@dpi.vic.gov.au
Times Cited 6
Total Times Cited Count (WoS, BCI, and CSCD) 8
Publisher CSIRO PUBLISHING
Publisher City COLLINGWOOD
Publisher Address 150 OXFORD ST, PO BOX 1139, COLLINGWOOD, VICTORIA 3066, AUSTRALIA
ISSN 0004-9409
29-Character Source Abbreviation AUST J AGR RES
ISO Source Abbreviation Aust. J. Agric. Res.
Year Published 2007
Volume 58
Issue 3
Beginning Page 225
Ending Page 232
Digital Object Identifier (DOI) 10.1071/AR06156
Page Count 8
Web of Science Category Agriculture, Multidisciplinary
Subject Category Agriculture
Document Delivery Number 146QL
Unique Article Identifier WOS:000244949300004
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