Responses of two Prunus rootstocks to KCl induced salinity in vitro
2006
Sotiropoulos, T.E.(Pomology Inst., Naoussa (Greece)) E-mail:[email protected] | Dimassi, K.N.(Aristotle Univ. of Thessaloniki (Greece). Lab. of Pomology) | Tsirakoglou, V.(Aristotle Univ. of Thessaloniki (Greece). Lab. of Pomology) | Therios, I.N.(Aristotle Univ. of Thessaloniki (Greece). Lab. of Pomology)
The in vitro response of two Prunus rootstocks: GF 677 (Prunus persica x Prunus amygdalus), and Nemared (Prunus persica) to increasing concentrations of KCl of the culture medium was studied. Shoots were grown in vitro for 8 weeks on an Murashige and Skoog medium supplemented with 0, 5, 10, 15, 20, 40 or 80 mM KCl. In both rootstocks, KCl concentrations between 0 and 40 mM did not significantly affect the number of shoots per explant. However, Nemared rootstock formed more shoots per explant than did GF 677. Inclusion of 80 mM KCl in the medium resulted in a reduction of growth in both rootstocks. Na, Fe, Mn, and Zn concentrations in Nemared rootstock tissues were significantly higher than those in GF 677 rootstock tissues.
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