Determining threshold salinity tolerance of wheat promising lines under greenhouse and field conditions

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Shiran Tafti Mehdi; PIRASTEH ANOSHEH HADI; Amini Sefidab Ashkboos

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Journal: Cereal Research Year:2019 | Volume:9 | Issue:3 Page(s): 235-248

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Title

Determining threshold salinity tolerance of wheat promising lines under greenhouse and field conditions

Author(s)

Shiran Tafti Mehdi | PIRASTEH ANOSHEH HADI | Amini Sefidab Ashkboos | Issue Writer Certificate

Keywords

Grain yieldQ1

Irrigation water salinityQ2

SeedlingQ2

Soil salinityQ2

Abstract

This research was conducted to compare the salinity tolerance of wheat promising lines during 2015-2017. The greenhouse experiment was carried out at Seed and Plant Improvement Institute, Karaj, Iran, and the field experiment was conducted at National Salinity Research Center, Yazd, Iran. The treatments in greenhouse experiment were Irrigation water salinity at two levels (2 and 14 dS. m-1) and five wheat genotypes (MS-89-13, MS-89-12, MS-90-13, MS-90-15 and Narin as check, and in the field experiment including salinity of irrigation water at five levels (2, 5, 8, 11 and 14 dS. m-1) and the same five wheat genotypes mentioned above. The results of greenhouse experiment showed that salinity stress of 14 dS. m-1 significantly decreased plant height, leaf area, shoot fresh and dry weight and root length and dry weight in all genotypes and increased chlorophyll index only in MS-89-12 genotype. Narin as well as MS-90-15 and MS-90-13 genotypes with the lowest reduction percentage due to salinity stress were determined as the most tolerant genotypes. The results of field experiment also indicated that salinity stress, depending on its severity, significantly reduced plant height, ear length, fertile spikelet number in ear, grain number per spike and thousand grain weight, which led to considerable decrease in grain and biological yield. Under control conditions (2 dS. m-1), the highest and lowest Grain yield were obtained from MS-90-13 and Narin (6. 91 and 5. 81 t. ha-1, respectively), and under 14 dS. m-1 salinity conditions, Narin and MS-90-15 genotypes had the highest and lowest Grain yield (3. 23 and 1. 51 t. ha-1, respectively). The threshold levels of salinity tolerance for MS-89-13, MS-90-13, MS-90-15, Narin and Ms-89-12 were evaluated to be 7. 41, 6. 30, 4. 92, 4. 84 and 4. 20 dS. m-1, respectively. The results showed that MS-89-13 had the higher salinity tolerance at salinity of less than 8 dS. m-1, but at higher salinity levels, Narin and MS-90-13 genotypes similar to greenhouse experiment were more tolerant than the other genotypes. According to the relatively similar results of greenhouse and field experiments, MS-90-13 line for lower salinity levels and Narin variety and MS-90-15 line for higher salinity levels were the more suitable genotypes, which could be recommended with due to considerations.

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APA: Copy

Shiran Tafti, Mehdi, PIRASTEH ANOSHEH, HADI, & Amini Sefidab, Ashkboos. (2019). Determining threshold salinity tolerance of wheat promising lines under greenhouse and field conditions. CEREAL RESEARCH, 9(3 ), 235-248. SID. https://sid.ir/paper/368087/en

Vancouver: Copy

Shiran Tafti Mehdi, PIRASTEH ANOSHEH HADI, Amini Sefidab Ashkboos. Determining threshold salinity tolerance of wheat promising lines under greenhouse and field conditions. CEREAL RESEARCH[Internet]. 2019;9(3 ):235-248. Available from: https://sid.ir/paper/368087/en

IEEE: Copy

Mehdi Shiran Tafti, HADI PIRASTEH ANOSHEH, and Ashkboos Amini Sefidab, “Determining threshold salinity tolerance of wheat promising lines under greenhouse and field conditions,” CEREAL RESEARCH, vol. 9, no. 3 , pp. 235–248, 2019, [Online]. Available: https://sid.ir/paper/368087/en

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