掌叶覆盆子优良单株的筛选

Selection of excellent individual plants of Rubus chingii Hu.

以初步优选的15株掌叶覆盆子为研究对象,对各优株的生长、种子和果实性状等进行分析,选出掌叶覆盆子优良单株。结果表明:地径和树高呈极显著正相关关系,花量与地径、树高、分枝数均呈显著正相关关系。种子宽度、果宽度和平均单果重在2个或2个以上优株间均不存在显著差异,6号优株的地径、树高、种子长度、果长度、果宽度和平均单果重均为最大,分别为19.99 mm、271 cm、1.94 mm、14.76 mm、12.29 mm、1.25 g。且座果率也为最高,63.00%。因此6号优株可作为优良单株,6号掌叶覆盆子单株具有广阔的推广应用前景。

Based on the preliminary selection of 15 Rubus chingii Hu.as the research object,the growth,seeds,and fruit properties of each superior plant were analyzed,and excellent R.chingii Hu.were selected.The results showed that there was a significant positive correlation between ground diameter and tree height,and there was a significant positive correlation between flower quantity and ground diameter,tree height and branch number.There were no significant differences in seed width,fruit width and average single fruit weight between two or more excellent plants,and the ground diameter,tree height,seed length,fruit length,fruit width and average single fruit weight of the No.6 excellent plant were the largest,which were 19.99 mm,271 cm,1.94 mm,14.76 mm,12.29 mm and 1.25 g,respectively.And the fruit setting rate is also the highest,63.00%.Therefore,No.6 excellent plant can be used as an excellent single plant,and No.6 R.chingii Hu.single plant has a broad promotion and application prospect.