‘广东含笑’研究进展
摘要：
‘广东含笑’(Michelia guangdongensis) 四季常绿,树形优美,芽、嫩枝、叶柄、叶背均密被红褐色平伏短柔毛,具极高的观赏价值,是新优珍稀观叶乡土树种,已在华南和华东等地区引种应用。本研究综述了‘广东含笑’的形态特征、生态分布、遗传距离、光合生理、苗木繁育、杂交育种、园林应用等方面的研究进展,并进一步探讨了天然种群、致濒机理和群体遗传多样性等研究,创建杂交育种目标培育优良新品种、构建良种壮苗繁育技术体系、加快资源开发利用等问题,为该物种保护和新优观赏资源开发利用提供参考。
关键词: ‘广东含笑’, 种质资源, 引种繁育, 亲本选配, 园林应用, 展望
Abstract:
Michelia guangdongensis is a new and rare native tree species for foliage viewing. It has been introduced and applied in south and east China due to its high ornamental value, which is attributed to its evergreen characters and good shape, and its buds, twigs and petiole leaves are densely covered with reddish brown pubescent hair. In this review, we summarized the morphological characteristics, ecological distribution, genetic distance, photosynthetic physiology, seedling cultivation, hybrid breeding and ornamental use of M. guangdongensis, and discussed the research on its natural population, endangerment mechanisms and population genetic diversity, as well as the establishment of hybrid breeding goals, selection of new varieties, resource evaluation and cultivation of strong seedlings, in order to provide reference for the protection of this species and the development and utilization of new and excellent ornamental resources.
Key words: Michelia guangdongensis, germplasm resources, introduction and breeding, parent selection, landscape application, prospect
中图分类号:
S687.9
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