大丽花名优品种的引种及露地栽培技术研究

大丽花是世界上品种最多的花卉之一，其品种繁多、花大色艳、群体花期长，并具有药用价值。作者在西安植物园于1996年春开始，从甘肃省临洮县引进大丽花名优品种200余个，经过十多年的栽培和研究，在繁殖方法、栽培技术、田间管理、以及越冬贮藏等方面均取得一定进展，值得推广。

Introduction and Outdoor Growing Techniques of Dahlia Pinnata in Xi'an

Dahlia is one of the flowers which have the most types in the world. Its flowers are big, various and colorful. Dahlia not only has numerous types and long colony inflorescence, but also has some value for medicine. In spring of 1996, more than 200 types of Dahlia were introduced from Lintao County of GanSu Provence to Xi’an Botanical Garden by the author. After more than 10 years of cultivation and study, many achievements have been achieved in propagation, cultivation, field management, prevention and cure of diseases and pests, and storage in winter, etc.