Sources of high tolerance to salinity in pea (Pisum sativum L.)

Leonforte, A. and Forster, J.W. and Redden, R.J. and et al, . (2012) Sources of high tolerance to salinity in pea (Pisum sativum L.). Euphytica. pp. 1-14.

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Abstract

This study was aimed at identification of parental germplasm that could be used for improvement of tolerance to sodium chloride (NaCl) in field pea. An initial screening experiment of 780 globally-distributed Pisum L. accessions identified significant variation in response to applied NaCl, based on plant symptoms. Lines with relatively higher tolerance as compared to commercial varieties grown in Australia were most frequently identified within landraces originating from the central, eastern and southern provinces of China. The most tolerant identified accession was an unadapted landrace ‘ATC1836’ originating from Greece. Variation for salinity tolerance was validated using a sub-set of 70 accession lines. Salinity-induced toxicity symptoms were closely associated with reductions of plant growth rate, height, shoot and root dry matter and with increased concentration of Na+ at the plant growing tip. The level of salinity tolerance based on these factors varied substantially and provides an important basis for genetic improvement of field pea for Australia.

Item Type: Article
Uncontrolled Keywords: Field pea � NaCl � Phenotypic screening � Germplasm
Author Affiliation: Grains Innovation Park, PMB 260, Horsham, VIC, 3401, Australia, Victorian AgriBiosciences Centre, La Trobe University Research and Development Park, 1 Park Drive, Bundoora, VIC, 3083, Australia, University of Melbourne, Melbourne, VIC, 3010, Australia
Subjects: Crop Improvement
Divisions: Groundnut
Other Crops
Depositing User: Mr. SanatKumar Behera
Date Deposited: 29 Sep 2012 08:49
Last Modified: 29 Sep 2012 08:49
Official URL: http://dx.doi.org/10.1007/s10681-012-0771-4
URI: http://eprints.icrisat.ac.in/id/eprint/8162

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