Effect of Salt Stress on NADP-Malic Enzyme Activity, Proline and Ionic Contents of Durum Wheat Genotypes

Author: Parvaneh Emami*, Hooman Razi* and Manoochehr Dastfal**

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Abstract

Salt stress is a major limiting factor for cereal production in semi-arid regions such as Middle East. Development of salt tolerant durum wheat cultivars is of great importance in salt affected regions. This study was carried out to test the effect of salt stress on NADP-Malic enzyme (NADP-ME) activity, proline, sodium and potassium contents as well as grain yield of durum wheat genotypes and to identify biochemical indicators for salt tolerance in durum wheat. The eleven wheat genotypes including three commercial durum wheat cultivars, seven advanced lines of durum wheat and one bread wheat cultivar were exposed to normal and NaCl salinity stress conditions. Significant differences were observed among the genotypes for all the biochemical and agronomic traits except NADP-ME. In addition, salt stress had a significant effect on the traits except spike length and protein content. The results led to identification of some durum wheat genotypes which showed more salt tolerance than the co

Keywords

Salt tolerance; NADP-ME; Sodium; Potassium; K/Na ratio; Wheat

Conclusion

Salt stress is a major limiting factor for cereal production in semi-arid regions such as Middle East. Development of salt tolerant durum wheat cultivars is of great importance in salt affected regions. This study was carried out to test the effect of salt stress on NADP-Malic enzyme (NADP-ME) activity, proline, sodium and potassium contents as well as grain yield of durum wheat genotypes and to identify biochemical indicators for salt tolerance in durum wheat. The eleven wheat genotypes including three commercial durum wheat cultivars, seven advanced lines of durum wheat and one bread wheat cultivar were exposed to normal and NaCl salinity stress conditions. Significant differences were observed among the genotypes for all the biochemical and agronomic traits except NADP-ME. In addition, salt stress had a significant effect on the traits except spike length and protein content. The results led to identification of some durum wheat genotypes which showed more salt tolerance than the co

References

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How to cite this article

Parvaneh Emami*, Hooman Razi* and Manoochehr Dastfal (2016). Effect of Salt Stress on NADP-Malic Enzyme Activity, Proline and Ionic Contents of Durum Wheat Genotypes , Biological Forum – An International Journal 8(2): 112-119.