1、 Protophloem The first - formed PRIMARY PHLOEM, differentiated from the procambium in the region just behind the meristem.
原生韧皮部:最早形成的初生韧皮部,由位于分生组织中的原形成层分化而来.
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2、 Research on Stem - apex Meristem Culture and Rapid Reproduction Technology of Sweet Potato.
脱毒马铃薯苗的快速繁殖技术.
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