【摘要】 主要对来自河南、辽宁、湖南、广西、湖北等五个省份六个产区的不同种源的银杏的叶、果和茎的性状进行比较研究。应用化学分析方法测定某些成分的含量。利用聚类分析方法中的最短距离法,探讨某种源经济性状向最理想性状选育的可能性,并为今后的良种选育和栽培区划提供重要依据。更多还原

【Abstract】 Comparison of characteristics of leaves,fruit and stem in different seed sources was analyzed .The organ content was analyzed chemically.The possibility of inverting from some characteristics to excellent ones is studied after applying cluster analysis ,which is the basis of elite seed selection and plant division.更多还原