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2007—2010年在山东东营进行了冬枣等4个枣品种幼树冬季修剪试验。结果表明,与重剪和不修剪处理相比,冬季采用轻剪或中剪修剪可显著提高枣幼树的早期产量,大白铃和金丝新4号修剪后产量较高,冬枣和圆铃2号修剪后产量较低;冬季修剪采用重剪,可显著促进幼树生长,增加发枝量、枝长、枝径、二次枝数和冬芽数;综合比较,大白铃品种对修剪反应最为敏感,其次是金丝新4号和冬枣,圆铃2号对修剪反应最不敏感;4个枣树品种不同生长势枣头的修剪反应有较大的差异。
Winter pruning experiments were carried out on young jujube cultivars of jujube cultivars such as winter jujube in Dongying, Shandong Province during 2007-2010. The results showed that the early yield of jujube tree could be significantly increased by light or medium pruning in winter compared with both heavy and non-pruned treatments. The yield of jujube tree was significantly higher than that of Jujube 4 and 4 The yield was lower after pruning; the pruning with winter pruning could significantly promote the growth of saplings, increase the number of shoots, branch length, branch diameter, secondary branch number and number of winter buds; Followed by Jinsi No. 4 and Dongzao, and Yuanling No.2 was the least sensitive to the pruning reaction. There were great differences in the pruning response of 4 jujube cultivars with different growth potential.