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Cotyledon and hypocotyl protoplasts of Helianthus annuus inbred line 47 302 bcd were embedded in alginate and plated on L4 medium (Lenée and Chupeau 1986). After one month, the calli were transferred on MSSH regeneration medium (Murashige and Skoog 1962; Schenk and Hildebrandt 1972) where they regenerated shoots (overall efficiency 10−2%). The shoots were(More)
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