绣球荚蒾无性繁育成活率的影响因素分析

绣球荚蒾花白色,形似绣球,观赏价值高,但其为大型完全不孕花,不结实,故开展绣球荚蒾不同繁殖试验,对提高其生根率、成活率,为绿化提供种苗繁育技术支撑,具有重要意义。2015-2016年采用单一变量3次重复进行绣球荚蒾不同基质、不同季节、不同砧木高度以及不同压条方式试验。结果表明,绣球荚蒾在黄泡沙扦插生根率最高,春季扦插生根率最高,嫁接时砧木高度在25 cm^45 cm时其半年存活率与1年后存活率最高,压条采用"夹接"方式其生根率、成活率最高。

A Preliminary Study of Asexual Propagation Ways of Viburnum macrocephalum

Viburnum macrocephalum was known as its white flowers,shaped like a ball,high ornamental value,d not producing seeds.In 2015 and 2016,reproductive tests were carried out to improve the rooting rate,survival rate in different matrix,different season,different stock height and different layering mode.The results showed that the V.macrocephalum cuttings rooting rate was the highest in yellow sand,spring cuttings rooting rate was the highest,the half year survival rate and survival rate after a year were both the highest when the height of root stock was in 25~45 cm,the best layering mode was named as "clip".