Durum wheat salt tolerance in relation to physiological, yield and quality characters

G. Borrelli; D. Ficco; L. Giuzio; M. Pompa; L. Cattivelli; Z. Flagella

doi:10.1556/crc.39.2011.4.7

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Cereal Research Communications

Volume/Issue:: Volume 39: Issue 4

Durum wheat salt tolerance in relation to physiological, yield and quality characters

Authors:

G. Borrelli

G. Borrelli Cereal Research Centre Agricultural Research Council of Italy S.S. 16 Km 675-71122 Foggia Italy

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D. Ficco

D. Ficco Cereal Research Centre Agricultural Research Council of Italy S.S. 16 Km 675-71122 Foggia Italy

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L. Giuzio

L. Giuzio Foggia University Department of Agro-environmental Science, Chemistry and Crop Protection and BIOAGROMED Interdipartimental Centre, Agricultural Faculty Via Napoli, 25 71122 Foggia Italy

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M. Pompa

M. Pompa Foggia University Department of Agro-environmental Science, Chemistry and Crop Protection and BIOAGROMED Interdipartimental Centre, Agricultural Faculty Via Napoli, 25 71122 Foggia Italy

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L. Cattivelli

L. Cattivelli Genomic Research Centre Agricultural Research Council of Italy via S. Protaso, 302 29017 Fiorenzuola d’Arda, PC Italy

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Z. Flagella

Z. Flagella Foggia University Department of Agro-environmental Science, Chemistry and Crop Protection and BIOAGROMED Interdipartimental Centre, Agricultural Faculty Via Napoli, 25 71122 Foggia Italy

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Pages:: 525–534

Online Publication Date:: 30 Nov 2011

Publication Date:: 01 Dec 2011

Article Category:: Research Article

DOI:: https://doi.org/10.1556/crc.39.2011.4.7

Keywords:: Triticum durum Desf.; crop production; physiological indices; grain quality; salt stress

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Durum wheat (Triticum turgidum L. Desf.) is a species well adapted to the Mediterranean environments where salt stress due to seawater intrusion is an increasing problem. The purpose of this study was to deep insight into the relationships among physiological, productive and qualitative aspects under salinity, being these aspects still poorly investigated in durum wheat. In 2004–2005 crop season 10 durum wheat genotypes of different origin and breeding time were grown in a naturally-lit polycarbonate greenhouse under three irrigation water salinity levels (0.9, 6.0 and 12.0 dS m⁻¹). A complete randomized block design with three replications was adopted. The osmotic damage was evaluated by estimating relative water content (RWC), leaf water potential (Φ_w) and osmotic potential at full turgor (Φ_π100). The toxic damage to the plants was evaluated by measuring Na⁺ accumulation and Na⁺/K⁺ ratio in the leaves. Differences in yield performance were evaluated by assessing the main yield components and some qualitative traits, carotenoid pigment and protein content and Sedimentation test in sodium dodecyl sulphate. A significant effect of genotype, salt stress and of their interaction on all the characters was observed. Durum wheat genotypes generally showed a moderate tolerance to salt stress. The genotype performance was dependent on stress level and RWC maintenance. Osmotic adjustment and low sodium accumulation were found to play a key role in salt tolerance. An improvement in the grain quality characters on increasing salinity level, consistently with a yield decrease, was observed.

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Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company

Print ISSN:: 0133-3720

Online ISSN:: 1788-9170

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Cereal Research Communications
Language	English
Size	A4
Year of Foundation	1973
Volumes per Year	1
Issues per Year	4
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
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ISSN	0133-3720 (Print)
ISSN	1788-9170 (Online)