大枝修剪矮化杨梅树体技术研究

Dwarfing effect of red bayberry(Myrica rubra Sieb.et Zucc.) trees by shearing big branch

研究了不同时期大枝修剪对12年生晚稻杨梅树体矮化的效应,其中夏季效果最好。夏季大枝修剪后第2年,树冠高度为3.72 m,比对照降低了76.88%;平均单果重12.66 g,可溶性固形物含量13.01%,株产量86.2 kg,站立采摘量75.9 kg,分别比对照增加15.30%,11.20%,29.62%,236.45%。杨梅树体矮化,产量增加,品质提高,采摘带来的安全隐患大大降低。

The dwarfing effect of red bayberry vat. ‘Wandao＇ trees by shearing big branch in various period was studied in this experiment. The results showed that shearing in Summer was the best period. The mean height of the tree was 3.72 m 2 years after shearing and was reduced by 76.88% as compared with the trees no shearing. And average fruit weight, soluble solid content, and fruit yield of single trees for the trees by shearing were 12.66 g, 13.01%, and 86.2 kg,respectively, and were increased 15.30%, 11.20%, and 29.62%, respectively. The fruit amounts picked by standing on the ground for the treatment of shearing big branch was 75.9 kg and increased by 236.45 % as compared with the trees no shearing. So, sheared trees had lower tree height, higher fruit yield, and better fruit quality. Meanwhile, picking the fruits on the sheared trees was safe.