【摘要】 河南省引种栽培来自北美、欧洲、日本、地中海等地的乔灌木有４８种。本文分析讨论了我省引种国外树种的历史和现状以及引种成功的因素。提出了国外树种的引种与发展的建议。更多还原

【Abstract】 Forty-eight species of woody plants from North America,Europe,Japan and theMediterranean have been introduced to the cultivation in Henan,This paper discussed thehistory and present situation of the introduction of foreign woody plants as well as theprincipal factors that led to the successful introduction from abroad.Some proposals forthe introduction and development of foreign woody plants were put forward,which provid-ed scientific basis for enlarging production,breeding and extending of foreign species in thefuture.更多还原