基质配方和容器对红叶樱花容器苗生长的影响

Effects of Media Formulas and Containers on Container Seedling Growth of Prunus serrulata 'Royal Burgundy'

为促进新优园林观赏植物容器苗的培育和应用,以红叶樱花为试验材料,研究基质配方和容器类型对容器苗生长的影响。结果表明:基质配方对容器苗的生长有一定的影响。其中A2基质(泥炭∶珍珠岩∶蛭石=5∶3∶2)容重最小,饱和含水量最大,分别为0.283 0g/cm2和47.243%;植株在此基质中生长表现最佳,其地径、根冠比和根系活力均最大,分别达到4.488mm、5.502 4和71.343 3μg/(g·h)。容器类型对容器苗根系发育的影响较为明显。控根容器最佳,其中植株根冠比最大,达到5.603 3;根系活力为67.379 3μg/(g·h),约为塑料营养钵和无纺布袋的1.3倍,并且根系结构合理,须根数量极多;其次为无纺布袋容器。综合考虑,红叶樱花容器苗的最佳培育基质配方为泥炭∶珍珠岩∶蛭石=5∶3∶2,培育容器为控根容器。

In order to promote the cultivation of container seedling of ornamental plants,the effects of media formulas and containers on container seedling growth of Prunus serrulata ‘Royal Burgundy＇were studied.The results showed that media formulas had some influence on the growth of container seedling.The A2formula（peat∶perlite∶vermiculite of 5∶3∶2）was conductive to the growth of the seedling with the smallest volume weight of 0.283 0g/cm2 and the biggest saturation moisture content of 47.243%.The basal diameter,ratio of root to shoot and root activity of plant were 4.488 mm,5.502 4and 71.343 3μg/（g·h）respectively,which were the biggest.The effect of different types of containers on root development of seedling was obvious.The ratio of root to shoot and root activity of root control container seedlings were 5.603 3and 67.379 3μg/（g·h）respectively,which was 0.3times higher than that of plastic block and non-woven bag,and the root of root control container seedlings had reasonable structure and abundant fibrous roots,the non-woven bag was second.In conclusion,the optimal substrate composition was peat∶perlite∶vermiculite of 5∶3∶2,and the optimal container was root control container.