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Growth responses and genetic variation among highly ecologically diverse spring wheat genotypes grown under seawater stress

Research Authors
Ahmed Amro, Shrouk Harb, Khaled Youssef, Mahmoud MF Ali, Aml G Mohammed, Amira MI Mourad, Mohamed Afifi, Andreas Börner, Ahmed Sallam
Research Abstract

Soil salinization is a global and dynamic problem that may increase in the future because of climate change scenarios, eg, rise in temperature, rise in sea level and impact on coastal areas, and increase in evaporation (Kumar and Sharma, 2020). The predicted increase of the sea level due to the thermal expansion of seawater ranges from 31 to more than 100 cm by the year 2100 (Mimura, 2013). This will reduce the land areas and consequently increase the potential yield losses resulting from the soil salinity. Salinity condition in arid and semi-arid regions occurs due to scanty precipitation and high evaporation (Dehnavi et al., 2020). The deficit in the freshwater supply is compensated by pumping excess ground water, especially in coastal areas (Halder et al., 2022). This situation results in high soluble salt contents (saline soils) and/or high sodium ion (Na+) levels (sodic or saline-sodic soils) beneath the crop rooting zone (soil horizon; Sadeghi and Rostami, 2017). This leads to stress that reduces the ability of plants (except halophytes and salttolerant crops) to take up water from the soil and causes soil degradation. Ultimately, a significant reduction in crop growth and productivity occurs (Food Agriculture Organization of the United Nations, 2022).

Research Date
Research Journal
Frontiers in Plant Science
Research Publisher
Frontiers Media SA
Research Rank
Q1
Research Vol
13
Research Website
10.3389/fpls.2022.996538, https://www.frontiersin.org/articles/10.3389/fpls.2022.996538/full
Research Year
2022
Research Pages
11