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杨树是重要的造林树种之一，优良杂种无性系７４１杨［Ｐｏｐｕｌｕｓａｌｂａ×（Ｐ．ｄａｖｉｄｉａｎａ×Ｐ．ｓｉｍｏｎｉ）×Ｐ．ｔｏｍｅｎｔｏｓａ］更因其速生丰产、材质优良等特点在我国北方诸省有极广泛的栽培［１］。杨树的组织培养工作进展较快，在体细胞胚胎...
Poplar is one of the important afforestation species, and the excellent hybrid clones 741 poplar [Populus alba × (P.davidiana × P.simoni) × P. Tomentosa more because of its fast-growing, high quality and other characteristics of the provinces in northern China has a very wide range of cultivation [1]. Poplar tissue culture work progressed rapidly in somatic embryos ...