EFFECTS OF ARBUSCULAR MYCORRHIZAL INOCULATION ON IN VIVO ROOT INDUCTION AND DEVELOPMENT IN SHOOTS OF MR.S. 2/5 PLUM ROOTSTOCK GROWN IN VITRO

From the results obtained it was not possible to establish the influence of this fungus on root induction, since even in the uninoculated treatment rooting percentage reached the maximum. In contrast, it was pointed out that inoculation influenced root morphology since endomycorrhizal plants displayed a more branched root system. Moreover, inoculation also appeared profitable in stimulating shoot apex growth, allowing plants to overcome the prolonged rest period to which micropropagated plantlets of this clone are often subject.

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