望春玉兰品种资源与分类系统的研究

对望春玉兰进行了全面系统的分类、整理和研究,首次根据《国际植物命名法规》、《国际栽培植物命名法规》中有关规定,以及望春玉兰品种形态特征,报道了该种有6个品种群(包括1原品种群、3新组合品种群、2新品种群)和24个品种(包括1原品种6、新品种,17新改隶组合品种)。同时,提出望春玉兰新分类系统。该分类系统:种→品种群→品种,为研究其形态变异理论、良种繁育以及开发利用提供了依据。

Study on the Variety Resources and Classification System of Yulania biondii

Yulania biondii was classified,settled and studied systematically.Based on the related regulations of International Code of Botanical Nomenclature,International Code of Nomenclature for Cultivated Plants and the morphological characteristics of Y.biondii,it was reported that the variety included 6 cultivar groups(including one original cultivar group,3 newly-combined cultivar groups,2 new groups) and 24 cultivars(including one original cultivar,6 new cultivars,17 new combined cultivars) for the first time.At the same time,a new classification system of Y.biondiia(species→cultivar group→cultivar) was put forward.This research provided the basis for studying its morphological variation theory,fine variety breeding and development and utilization.