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• In vitro regeneration from cotyledons of watermelon

  96-98.

  V. Zarka

  L. Velich

  Gy. Bisztray

  Views:

  178

  Cotyledonary segments of five different genotypes of watermelon were used to induce organogenesis. Five different hormone combinations were applied to enhance the induction of shoot formation on the surface of the segments. The phases of organogenesis were followed with light and scanning electron microscope. Shoots were obtained after four weeks, then the shoots were transferred to hormone free medium for root induction.

  This method of regeneration can be applied in transformation experiments. GUS histochemical assay was made to check the expected success of using Agrobacterium for the transformation.

• Molecular diversity of Hungarian melon varieties revealed by RAPD markers

  11-13.

  E. Bába

  V. Zarka

  T. Deák

  A. Pedryc

  I. Velich

  Gy. D. Bisztray

  Views:

  162

  RAPD markers were used to reveal genetic diversity between nine varieties of Cucumis melo L. and to identify the studied varieties. Of the 60 primers tested 12 primers produced polymorph patterns. A set of 4 primers was sufficient for distinction the nine investigated melon varieties.