不同整形方式对苹果幼树生长发育及生产性能的影响OA

To achieve simplified and mechanized management in apple orchards,this study used'Qincui'/'Qiuzi'apple as the experimental material,and investigated the training process and production performance of three training systems:the slender spindle training system(ST),the single horizontal trunk Guyot training system(GST),and the double horizontal trunk Guyot training system(GDT).The results showed that the canopies of GST and GDT were distributed in a planar pattern along the row direction,which was beneficial for increasing bud break rate and flower bud differentiation rate,thereby enhancing early fruiting capacity.Among them,GDT exhibited stronger tree expansion ability,and its fruit retention rate,yield per plant,and yield per unit area were significantly higher than those of ST and GST.Comprehensive evaluation of production performance indicated that GDT performed better in terms of yield,fruit quality,economic benefit,and management convenience after preliminary tree formation,showing favorable input-output advantages.In conclusion,in the establishment of modern trellised apple orchards,the planar training system represented by the double horizontal trunk Guyot training system can be adopted to achieve simplified,mechanized,and efficient cultivation.