Assessment of sub-soil salinity and sodicity constraints to barley and faba bean production

Tavakkoli, Ehsan and Rengasamy, Pichu and McDonald, Glenn K. (2011) Assessment of sub-soil salinity and sodicity constraints to barley and faba bean production. Project Report. Grains Research and Development Corporation, Canberra, Australia.

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Abstract

Soil salinity and sodicity are two of the principal limitations to growth and yield of crop in arid and semi-arid areas of Australia (Rengasamy 2010). While saline-sodic soils have a number of nutritional limitations, breeding for salt tolerance has focussed largely on Na+ exclusion. The importance of high Cl- is poorly defined for soils in southern Australia, despite some soils containing high concentrations of Cl-. Despite numerous reports showing variability in ion exclusion for many crops, few salt-tolerant genotypes have been released (Flowers and Yeo 1995). This lack of success may be due in part to physiologists conducting experiments under ideal, controlled conditions (e.g. hydroponics, sand cultures and greenhouse or growth chamber environments). However, genotypic differences measured under controlled conditions may not correspond to those observed under actual field conditions (Tavakkoli et al. 2010a; Tavakkoli et al. 2010b). Therefore, the objective of our study was to assess the value of Na+ and Cl- exclusion to yield in saline soils as a basis of developing more salt tolerant varieties.


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Item Type: Report (Project Report)
Item Status: Live Archive
Additional Information: Australian government project report.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 11 Jul 2012 05:44
Last Modified: 11 Jul 2012 05:44
Uncontrolled Keywords: salinity; environmental damage; plant breeding; salt tolerance
Fields of Research (FOR2008): 05 Environmental Sciences > 0503 Soil Sciences > 050304 Soil Chemistry (excl. Carbon Sequestration Science)
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070303 Crop and Pasture Biochemistry and Physiology
05 Environmental Sciences > 0503 Soil Sciences > 050302 Land Capability and Soil Degradation
Socio-Economic Objective (SEO2008): D Environment > 96 Environment > 9612 Rehabilitation of Degraded Environments > 961202 Rehabilitation of Degraded Farmland, Arable Cropland and Permanent Cropland Environments
URI: http://eprints.usq.edu.au/id/eprint/19011

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