Effects of Five Dwarfing Interstocks on Shoot Growth, Fruiting and Accumulation of Mineral Elements in Leaves of Yishui Red Fuji Apple
[Objective] Five dwarfing interstocks were evaluated on tree growth,yield,fruit quality and accumulation of mineral elements in leaves of Yishui red Fuji apple (Malus domestica Mill) for three years in order to select the suitable dwarfing interstock with independent intellectual property rights.[Method] The Yishui red Fuji apple tree seedlings with different dwarf interstock (M26,SH6,Qing 2,Liao 2 and M9T337) planted in spring of 2009 were used as experimental trees,and the dynamic changes of tree growth,yields and fruit qualities and accumulation of mineral elements in leaves were investigated from 2014 to 2016.[Result] The results showed that the interstock Liao 2 had better growing compatibility with the rootstock and the scion.The shoot growth of Yishui red Fuji trees grafted on SH6 was significantly higher than that of on other four interstocks,although the shoot growth tendency of Yishui red Fuji trees grafted on different interstocks was similar.The ratio of short shoots of SH6 dwarfing interstock apple tree was the highest (65.2％),and the ratio of long branches was the lowest (11.1％).The average yield per plant of M26 dwarfing interstock apple trees was significantly higher than the other four interstock,but the proportion of big fruits (the fruit weight more than 200 g) from high to low in order was Qing 2＞Liao 2＞SH6＞M9T337＞M26.There was no significant difference among five dwarfing interstock apple trees in average weight of fruit weight,fruit shape,fruit hardness,the content of soluble solid and solid-acid ratio.During the growing stages,the contents of N,P,Ca,and Mg in the leaves of the scion trees grafted on Qing 2,Liao 2 and SH6 were relatively higher,and high Zn content was found on Liao 2 interstock tree.However,the contents of Ca in leaves of the Yishui red Fuji trees grafted on M9T337 were slightly higher in later growth stage.[Conclusion] According to the 3 years survey data,Yishui Red Fuji apple trees with Qing 2,Liao 2 and SH6 dwarf interstocks showed better growing compatibility,small tree,moderate growth,early bearing,high and stable yield,and good fruit quality characters.
dwarf interstockyishui red fuji appletree growthmineral element
国家科技期刊平台
NSTL
万方数据
维普
