Impact of rootstock on fruit physical properties of 'Pink Lady' apple

Abstract

Tokom 2018. i 2019. godine ocenjivali smo glavna fizička svojstva ploda [masa (FW), dužina (L), prečnik (D), srednji geometrijski prečnik (Dg), odnos dužina/prečnik (L/D odnos), sferičnost ( ph), površina (S), zapremina (V) i specifična masa (r)] sorte 'Pink Lady' kalemljene na kržljavoj M.9 T337, polukržljavoj M.26 i srednjebujnoj MM.106 podlozi. Rezultati su pokazali da su podloge značajno menjale ispitivane osobine sa izuzetkom L/D odnosa, ph i r. Među podlogama, M.9 T337 je uslovila najbolje vrednosti, dok su manje i statistički slične vrednosti promovisale podloge M.26 i MM.106. Sve podloge su izazvale prečnik ploda veći od 66 mm, dok je samo M.9 T337 indukovala prečnik ploda ≥70 mm. Podloge nisu imale sposobnost da promene oblik ploda klub sorte 'Pink Lady'.

During 2018 and 2019, we evaluated the main fruit physical properties [weight (FW), length (L), diameter (D), geometric mean diameter (Dg), length/diameter ratio (L/D ratio), sphericity (ph), surface area (S), fruit volume (V) and solid density (r)] of 'Pink Lady' apple grafted on dwarf M.9 T337, semi-dwarf M.26 and semi-vigour MM.106 rootstocks. Results showed that rootstocks significantly changed the properties evaluated with the exception of L/D ratio, ph and r. Among rootstocks, M.9 T33 7 produced the best properties, whereas lower and statistically similar values were obtained from M.26 and MM.106 rootstocks. All rootstocks promoted D higher than 66 mm, whereas only M.9 T337 induced D ≥70 mm. The rootstocks did not have the capacity to change the fruit shape of the 'Pink Lady' club cultivar.