掌叶覆盆子优株的复选及繁殖示范推广研究

[目的]为掌叶覆盆子（Rubus chingii Hu）的优株选育和推广种植提供科学依据。[方法]对初步选育的10株掌叶覆盆子优株进行植株性状、生长习性、开花习性及结果习性进行调查,结合掌叶覆盆子优株爱选标准,淘汰不符合标准的单株,再进行株间比较,选育出不同熟期的掌叶覆盆子优良单株。[结果]选育出的优良单株有7号（晚熟、长果型）、6号（早熟、圆果型）及4号（中熟,圆果型）。[结论]复选的3株优良掌叶覆盆子单株具有广阔的推广应用前景。

Study on Repeated Selection of Rubus chingii Hu Superior Individual Plants and Their Demonstration and Extension

[Objective]To provide scientific basis for Rubus chingii Hu superior individual plants selection and demonstration and extension.[Method]The plants characteristics,growth habit,flowering behavior and bearing fruit habit of the preliminarily selected ten Rubus chingii Hu superior individual plants were investigated.The Rubus chingii Hu individual plants that could not meet the standard of superior were eliminated.Then the superior individual plants at different mature stages were selected through comparasion of different plants.[Result]The Rubus chingii Hu superior individual plants obtained by repeated selection were NO.7(late maturity,long fruit type),NO.6(early maturity,round fruit type) and NO.4(middle maturity,round fruit type) respectively.[Conclusion]Three Rubus chingii Hu superior individual plants obtained by repeated selection have a good prospect of application and extension.