不同修剪方式对海棠生长的影响

Effect of Different Pruning Methods on the Growth of Malus spectabilis

为探究不同修剪方式对海棠生长的影响,以甘肃省张掖市甘州区红宝石海棠嫁接小苗为研究对象,考察了不同修剪方式下的海棠树发枝数量、新枝长度、株高、地径以及冠幅生长状况。结果表明:综合修剪法新增枝条数量较少,但是对延长枝的发育具有促进作用,平均新枝条长度最长(73.52 cm),较常规修剪法增加了107.74%,株高增长量最高(67.18 cm),地径增长量最高(1.69 cm),冠幅增长量最高(36.58 cm×41.16 cm)。不同修剪方式对海棠生长状况产生显著影响,综合修剪条件下的海棠生长状况优于常规修剪法。可为海棠培育提供理论依据。

To investigate the effects of different pruning methods on the growth of Malus spectabilis.The grafted seedlings of ruby-red Malus spectabilis in Ganzhou district,Zhangye City,Gansu Province were studied.The number of branches,length of new branches,plant height,ground diameter and crown width of Malus spectabilis trees were investigated under different pruning methods.The average length of new branches was the longest(73.52 cm),which was increased by 107.74% compared with that of conventional pruning.The increase of plant height and ground diameter was the highest(67.18 cm)and that of ground diameter was the highest(1.69 cm).The crown width increased the most(36.58 cm×41.16 cm).Different pruning methods have significant effects on the growth of Malus spectabilis,and the growth of Malus spectabilis under comprehensive pruning condition is better than that under conventional pruning method.This paper provides a theoretical basis for the cultivation of Malus spectabilis.