Evaluation of relationship between leaf temperature and salinity tolerance and pattern of shoot sodium accumulation in wheat cultivars

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ATLASSI PAK V.; BAHMANI O.; Yadegari H.

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Journal: Environmental Stresses in Crop Sciences Year:2020 | Volume:13 | Issue:3 Page(s): 925-936

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Title

Evaluation of relationship between leaf temperature and salinity tolerance and pattern of shoot sodium accumulation in wheat cultivars

Author(s)

ATLASSI PAK V. | BAHMANI O. | Yadegari H. | Issue Writer Certificate

Keywords

ChlorophyllQ3

Osmotic stressQ2

Stomatal conductanceQ2

Salinity toleranceQ2

Abstract

The understanding of salt tolerant mechanisms is crucial for development of varieties with high Salinity tolerance. In this greenhouse experiment, two bread (Arg and Tajan) and a durum (Behrang) wheat cultivars were evaluated in terms of leaf temperature and patterns of Na+ accumulation under three salinity levels (Control, 100 and 200 mM NaCl). Shoot and root Na+ concentration was increased in response to increase in salinity and this increase was greater in roots. Salt stress decreased shoot dry weight in bread wheat cultivars (32%) and durum wheat (63%) as well. In the highest salinity level, after 45 days exposure to salt stress, shoot K+/Na+ ratio was reduced in all genotypes about 60% and in this level of salinity higher reduction in Chlorophyll content occurred in Behrang (75%) cultivar. Differences in leaf Na+ concentration between two bread wheat cultivars was more obvious in 45 days after salt stress but in other growth stages were less obvious. At 200 mM NaCl, Arg showed the lowest and non-significant increase in leaf temperature (0. 87◦ C) but in Tajan (1. 74◦ C) and Behrang (4. 30◦ C) this increase was significant. Different patterns of Na+ accumulation may be exist in wheat cultivars through time. This preferential in early growth stages, stomatal factors is more important than Chlorophyll content and as leaf temperature is largely a function of Stomatal conductance, this can probably be used to assess Osmotic stress tolerance.

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APA: Copy

ATLASSI PAK, V., BAHMANI, O., & Yadegari, H.. (2020). Evaluation of relationship between leaf temperature and salinity tolerance and pattern of shoot sodium accumulation in wheat cultivars. ENVIRONMENTAL STRESSES IN CROP SCIENCES, 13(3 ), 925-936. SID. https://sid.ir/paper/387536/en

Vancouver: Copy

ATLASSI PAK V., BAHMANI O., Yadegari H.. Evaluation of relationship between leaf temperature and salinity tolerance and pattern of shoot sodium accumulation in wheat cultivars. ENVIRONMENTAL STRESSES IN CROP SCIENCES[Internet]. 2020;13(3 ):925-936. Available from: https://sid.ir/paper/387536/en

IEEE: Copy

V. ATLASSI PAK, O. BAHMANI, and H. Yadegari, “Evaluation of relationship between leaf temperature and salinity tolerance and pattern of shoot sodium accumulation in wheat cultivars,” ENVIRONMENTAL STRESSES IN CROP SCIENCES, vol. 13, no. 3 , pp. 925–936, 2020, [Online]. Available: https://sid.ir/paper/387536/en

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