Abstract
Shoot tips of M.4 apple clone were excised from actively growing one year-old stoolbed branches, and cultured in order to determine the optimal nutrient medium for each stage of their in vitro culture. The basal medium (BM) used was that described by Murashige and Skoog, supplemented with vitamins, glycine, myoinositol, sucrose, with or without agar, and different combinations of plant growth regulators. Best media for each stage were: BM+0.5 mg 1-1 indole-3yl-butyric acid (IBA)+0.5 mg 1-1 6-benzylaminopurine (BAP) for explant establishment (Stage I); BM+0.1 mg 1-1 IBA+1.0 mg 1-1 BAP for multiplication and internode enlargement (Stage II); and 2.0 mg 1-1 IBA+0.1 mg 1-1 BAP without agar for the rooting of the plantlets (Stage III).
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Ochatt, S.J., Caso, O.H. In vitro meristem culture of M.4 apple (Malus pumila Mill.). I. Optimal nutrient medium. Plant Cell Tiss Organ Cult 2, 39–48 (1982). https://doi.org/10.1007/BF00033551
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DOI: https://doi.org/10.1007/BF00033551