Physiological responses and adoptive mechanisms in oat against three levels of salt stress

Authors

  • Zhan-Wu GAO Baicheng Normal University, Tourism and Geographical Science Institute, Baicheng 137000 (CN)
  • Sun PEILIANG Liaocheng Meteorological Bureau, Liaocheng Shandong 252000 (CN)
  • Yan-Hui CUI Baicheng Normal University, Tourism and Geographical Science Institute, Baicheng 137000 (CN)
  • Asma HANIF The Islamia University of Bahawalpur, Bahawalnagar Campus (PK)
  • Zong-Ze YANG Northeast Normal University, Institute of Grassland Science, Key Laboratory of Vegetation Ecology of Ministry of Education, Changchun 130024 (CN)
  • Rui-Li LI Northeast Normal University, Institute of Grassland Science, Key Laboratory of Vegetation Ecology of Ministry of Education, Changchun 130024 (CN)
  • Chun-Sheng MU Northeast Normal University, Institute of Grassland Science, Key Laboratory of Vegetation Ecology of Ministry of Education, Changchun 130024 (CN)
  • Adnan RASHEED Hunan Agricultural University, College of Agronomy, Changsha 410128 (CN)

DOI:

https://doi.org/10.15835/nbha51313249

Keywords:

above ground parts, index, oat, physiological responses, salt stress

Abstract

To identify the propagation mechanisms and the adaptive strategies of oat seedlings exposed to NaCl, NaHCO3 and Na2CO3 the main salts in the soils of the salt-alkali grasslands of the Songnen Plain of China, growth rates and physiological indices of oat seedlings were measured in plants grown in soils with different concentrations (48-144 mmol L-1) of the three salts. The results demonstrated that although oat seedlings survival rates were unaffected by NaCl stress, the tiller number, plant height, and shoot and root dry weights decreased with increasing salt concentration, in the order of Na2CO3＞NaHCO3＞NaCl. In addition, propagation mechanisms higher concentrations of Na+ accumulated in the shoots and roots of oat seedlings under Na2CO3 stress and NaHCO3 stress than in seedlings under NaCl stress. Reductions in concentrations of K+ were also greater under both Na2CO3 and NaHCO3 stress than NaCl, especially in the roots. Large amounts of Cl－ and proline were found to accumulate in oat seedlings, most likely as a strategy for maintaining osmotic and ionic homeostasis under NaCl stress.

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Published

2023-09-26

How to Cite

GAO, Z.-W., PEILIANG, S., CUI, Y.-H., HANIF, A., YANG, Z.-Z., LI, R.-L., MU, C.-S., & RASHEED, A. (2023). Physiological responses and adoptive mechanisms in oat against three levels of salt stress. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 51(3), 13249. https://doi.org/10.15835/nbha51313249

Issue

Vol. 51 No. 3 (2023)

Section

Research Articles
CITATION
DOI: 10.15835/nbha51313249

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Copyright (c) 2023 Zhan-Wu GAO, Sun PEILIANG, Yan-Hui CUI, Asma HANIF, Zong-Ze YANG, Rui-Li LI, Chun-Sheng MU, Adnan RASHEED

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