Pruning should not be performed in late summer or early spring, however any other time of the year is fine.
修剪不能在早春或夏末进行，在一年中的其它时间都可以。
Measures for protection to frost are proposed, including selecting favorable topography and frost-resistant cultivars, smoking and summer pruning.
提出预防霜冻的措施，主要包括：选择有利地形、选择抗霜冻品种、采取熏烟和夏季修剪等措施。
Summer pruning devitalises the tree on an extent and consequently reduces excessive vigour.
夏剪能在一定程度上减弱植株的生命力，从而削弱过分的生长势。
Summer pruning devitalises the tree on an extent and consequently reduces excessive vigour.
夏剪能在一定程度上减弱植株的生命力，从而削弱过分的生长势。
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