Early performance of ‘Auksis’ apple trees on dwarfing rootstocks in the Baltic region
¹Polli Horticultural Research Centre of the Institute of Agricultural and Environmental Sciencesof the Estonian University of Life Sciences, Polli, 69108, Viljandimaa, Estonia; e-mail: firstname.lastname@example.org
²Lithuanian Institute of Horticulture, Kauno 30, LT-54333 Babtai, Kaunas distr., Lithuania;e-mail: email@example.com
³Pure Horticultural Research Station, Abavas 2, Pure, LV-3124, Latvia;e-mail: firstname.lastname@example.org
‘Auksis’ apple trees on P22, P59, P61, P62, P66, P67, PB-4, Pure 1, B.9, B.396, M.9 and M.26 rootstocks were planted in Estonia, Latvia and Lithuania in 2005. After five growing season, the strongest growth and the highest yield were recorded in Lithuania. The growth rate of trees on B.396, B.9, P62, P67, P66 and Pure 1 was similar to those of trees M.9. The rootstocks P22, P59 and PB-4 appeared to be more dwarfing than M.9. The highest cumulative yield of ‘Auksis’ was obtained from trees grafted on M.9, M.26, P62 and P67. The least productive were trees on PB-4 rootstock at all the places. Effects of rootstock on fruit weight were modest. Rootstock and location interaction was recorded for P61 in growth vigour control, and P22 and Pure 1 in cumulative yield.