槐属植物新品种DUS测试指南性状特征研究

Study on the characteristics for tests guidelines of distinctness uniformity stability for new varieties of plant-pagoda tree(Sophora L.)

通过资料搜集、野外调查和定点观测,研究了槐属国内外近30种、近20变种变型、10余栽培变种及授权植物新品种,从分类学的角度对槐属植物主要形态性状和生长性状进行了准确描述和科学分级,筛选确定了40个基本性状,并对每个基本性状的表达状态进行描述分级,共划分了153个表达状态或等级。利用这些性状表达和分级可以对现有槐属植物种类进行鉴别,对其新品种特异性、一致性、稳定性实质审查和品种权的审批具有重要意义。

By data collection,field survey and fixed-point observation,the pagoda trees（Sophora L.） including 30 species,nearly 20 variants and more than 10 cultivars and granted new varieties at home and abroad were investigated.From the perspective of taxology,main morphology characteristics and main growing characteristics were described accurately and classified scientifically.The 40 standard characteristics were screened and expression of characteristics of them was revealed.The 153 expressions of characteristics or classiflcations were divided.It was important for substantive examination of distinctness,uniformity and stability for new varieties and approval of the varieties right for pagoda tree.