Assessing biomass stability of barley (hordeum voulgar l.) genotypes under salinity at early growth stage

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Research Paper 01/06/2017
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Assessing biomass stability of barley (hordeum voulgar l.) genotypes under salinity at early growth stage

Hossein Askari, Seiyed Kamal Kazemitabar, Hamid Najafi Zarrini, Mohammad Hossein Saberi
J. Bio. Env. Sci.10( 6), 76-82, June 2017.
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As a result, the development of salinity-tolerant crops is an important option for maintaining crop production in saline soil so this study was performed to assess tolerance, stability and selection criteria of barley genotypes under salinity stress. Nine barley genotypes (STW82153 (A), MBS8712 (B), ESBYTM8910 (C), 4Shori (D), 5Shori (E), WB7910 (F), Valfajr (G), MBS8715 (H) and Jo torsh (I)) in five salinity levels (electrical conductivities, ds/m) (S1 (control) =4.5, S2=7.5, S3=10.5, S4=13.5 and S5=16.5) were evaluated for biomass production. A green-house experiment was laid out in completely randomized design with three replications. Analysis of variance indicated high differences among the genotypes and salinity levels. Biomass production decreased with increasing salinity level and MBS8712 genotype showed better performance than other genotypes. Due to significant genotype × salt effect, for assessing genotypes reaction in salt levels some stability parameters were used. Most of the stability methods indicated that the 4Shori genotype was the most phenotypically stable with above-average performance. The results revealed both potential and performance under stress with stability should be considered simultaneously to take advantage of the selection desirable genotypes for stress tolerance.


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