Plant Regeneration via Direct Somatic Embryogenesis in Three Strawberry (Fragaria ananassa Duch.) Cultivars
Article Type:
Research/Original Article (دارای رتبه معتبر)
Cultivated strawberry (Fragaria×ananassa Duch.) is one of the most important fruit plants for both fresh consumption and food processing. The aim of this study was plant regeneration via direct somatic embryogenesis in three strawberry cultivars of Kurdistan, Paros and Camarosa. For this purpose, leaf blade of cultivars were cultured on Murashige and Skoog (MS) medium supplemented with Thidiazuron (TDZ) at 1, 2, 3, and 4 mg/L alone or in combinations with the different concentrations (0, 0.25, 0.5, and 1 mg/L) of auxin 2,4-dichlorophenoxy acetic acid (2,4-D). All data were analyzed by one-way analysis of variance (ANOVA) using factorial experimental based on completely randomized design with four replication and means were compared with Duncan’s tests at p< 0.05. The highest induction frequency of embryogenesis and number of somatic embryos per explants was obtained on MS medium containing 3 mg/L TDZ supplemented with 0.25 mg/L 2,4-D. In this medium, the maximum number of globular embryos per explants obtained for the cultivars of Camarosa (25.75), Paros (22.00) and Kurdistan (14.75). The globular embryos of the leaf explants developing into cotyledonary embryos were cultured on MS medium supplemented with sucrose at a concentration of 1.5, 3, 6, 9, and 12%. Among the tested concentrations, 6% sucrose was found superior for uniform embryo developmental stages.
Agrotechniques in Industrial Crops, Volume:1 Issue: 3, Summer 2021
103 to 109  
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