This study focused on the differences between the management of conventional horizontal trellis training model and vertical trellis(espalier) training model of top-grafting sand pears (Pyrus spp.).

  • 摘要本研究目的在于比较台湾惯行水平棚架整枝与新设计之直立垣篱式整枝高接梨园之优劣。
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