Document Type : علمی- پژوهشی
Authors
1
Associate Prof, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
2
Associate Prof, Crop and Horticultural Science Research Department, Isfahan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Isfahan, Iran.
3
Assistant Prof, Crop and Horticultural Science Research Department, South Khorasan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Birjand, Iran.
4
Associate Prof. Crop and Horticultural Science Research Department, Yazd Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Yazd, Iran
5
Assistant Prof. Cereal Research Department, Seed and Plant Improvement Institute (SPII), Karaj, Iran
Abstract
Salinity stress is one of the important abiotic factors that disrupts crops production. Although barley is one of the salinity-resistant plants, all its growth stages are affected by the negative effects of salinity stress. In the current research for identifying irrigated barley promising lines with high grain performance and stability under salinity stress conditions, 18 barley promising lines along with two local checks (Golshan cultivar and line MBS-98-10) were investigated in three saline regions (Yazd, Isfahan, and Birjand) in the 2021-22 and 2022-23 cropping seasons. Results of combined analysis variance for grain yield showed not significant effect for year, genotype × location and genotype × year but significant effect for location, genotype, year × location and genotype × year × location. Based on the results of means comparison, genotypes G8, G4, G11, G13 and G14 showed the highest grain yield compared to the other genotypes. For investigation of yield stability, non-parametric parameters include Si1, Si2, Si3, Si6 and parametric parameters include Coefficient of variance, Shukla’s stability variance, Wricke’s covalence, Kang’s rank-sum were used. According to the results, genotypes G4, G13 and G14 were identified as lines with desirable and stable yield which not only can be used as new cultivars in salinity effected regions but also in future breeding programs for introducing new salt-tolerant barley lines.
Keywords