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以8~9年生东魁杨梅为试材,以不整形修剪为对照,调查了定植后按不同树形整形修剪对杨梅生长结果和果实品质的影响。结果表明,与不整形修剪相比,杨梅采用开心形、圆头形和主干形树形均可控制树体生长;3种树形对树高和东西冠径的影响相近,但南北冠径为开心形>圆头形>主干形。采用开心形和圆头形整形修剪后,促进着色、提早成熟和改进果实品质的效果明显,尤其以开心形的效果最好。主干形促进着色和提早成熟的效果不明显;虽然有改进单果质量、总糖含量、总多酚含量、维生素C含量和总黄酮含量等品质指标的趋势,但果实偏酸,固酸比低。3种树形的效益有所增加,其中,开心形和圆头形的单株产量和效益相近,但高于主干形。整体效果为开心形>圆头形>主干形>CK。
Taking 8 ~ 9-year-old Dongkui Bayberry as experimental material and non-plastic pruning as control, the effects of different tree pruning on the growth and fruit quality of red bayberry were investigated. The results showed that compared with the pruning pruning, the population growth of Myrica rubra was controlled by the happy-shaped, round-shaped and trunk-shaped trees. The three tree types had similar effects on the tree height and the crown-diameter, Happy shape> round shape> trunk shape. The use of happy-shaped and round head shape trimming, the promotion of coloring, early maturity and improve the quality of fruit effect is obvious, in particular, the best happy-shaped effect. The effect of stem-shape promotion and early maturity is not obvious. Although there is a tendency to improve quality indicators such as single fruit quality, total sugar content, total polyphenol content, vitamin C content and total flavonoid content, the fruit is slightly acidic and has a low solid-acid ratio. The benefits of three kinds of trees increased, of which the happy and round-shaped per plant yield and benefit similar, but higher than the trunk shape. The overall effect is happy> round head> trunk> CK.