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Variability in Salt Tolerance of Nine Spring Wheat Cultivars
Author(s) -
Ashraf M.,
McNeilly T.
Publication year - 1988
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1988.tb01160.x
Subject(s) - cultivar , germination , salinity , horticulture , biology , soil salinity , agronomy , ecology
The biotic approach to overcome salinity problems has recently received a considerable attention from many workers throughout the world. However the identification of existing crop varieties which have enhanced salt tolerance is clearly of considerable value for exploitation of saline soils for agriculture. Salt tolerance of the nine spring wheat cultivars Bounty, Jerico, LU 26S, Minaret, Sonora 64, Timmo, Toban 66, Tonic , and Wembley was assessed at germination, and at maturity using solution and sand culture techniques. No consistent correlation was found between tolerance assessed at these two growth stages in any of the cultivars except Wembley . The salt tolerant cultivar LU 26S had significantly higher germination percentage and germination rate than the other cultivars, but was intermediate in yield. By contrast cv. Tobari 66 had low germination percentage, intermediate germination rate, but had a higher yield than the other cultivars particularly at the highest salt level. The cv. Wembley had low values in all the characters studied and thus appeared to be very salt sensitive compared with the other cultivars. There was not any consistent relationship between yield characters and ionic content in these cultivars. A general selection criterion based upon whole plant performance for assessment of salt tolerance in wheat is proposed. Zusammenfassung Variabilität der Salztoleranz von neun Som‐merweizensorten Die Salztoleranz von neun Sommerweizensor‐ten: Bounty, Jerico, LU 26S, Minaret, Sono‐ra 64, Timmo, Tobari 66, Tonic and Wembley wurden bezüglich des Keimens und der Aus‐reife untersucht. Bei den geprüften Sorten wa‐ren mit Ausnahme von Wembley keine Bezie‐hungen bezüglich der Salztoleranz für diese beiden Entwicklungsphasen festzustellen. Die Sorte LU 26S wies höhere Keimprozente und Keimraten auf als andere Sorten, ergab aber nur einen mittleren Ertrag. Die Sorte Tobari 66 hatte niedrige Keimprozente, eine mittle‐re Keimrate und höhere Erträge als andere Sorten; dies gait insbesondere für eine hohe Salzgehaltstufe. Die Sorte Wembley erschien dagegen sehr sensitiv in bezug auf die Salzver‐träglichkeit in alien untersuchten Eigenschaf‐ten. Es konnte kein konsistentes Verhältnis zwischen den Ertragseigenschaften und dem Ionengehalt nachgewiesen werden.