三种植物生长调节剂对七彩朱槿生长的影响

The Effects of Three Plant Growth Regulators on the Growth of Hibiscus rosa-sinensis

采用多效唑(PP333)、矮壮素(CCC)、比久(B9)3种植物生长调节剂对盆栽七彩朱槿进行处理,研究生长调节剂对七彩朱槿生长的影响,为化学修剪提供理论依据。结果表明:在相同条件下,采用叶面喷施和根部施用2种用药方式均对七彩朱槿的生长产生明显的影响;在相同的配方处理下,采用根施对七彩朱槿生长的抑制效果更为明显;在相同浓度下,多效唑对七彩朱槿生长指标增长的抑制作用最显著。

The effects of plant growth regulators on the growth of Hibiscus rosa-sinensis were studied, PP333, CCC and B9 were used in the pot experiments, to provide a theoretical basis for chemica pruning. The results showed that both of foliar fertilization and root fertilization had remarkable influence on the growth of Hibiscus rosa-sinensis. The inhibitory effects by root fertilization were more obvious than by foliage fertilization under the same condition. Among the three plant growth regulators for testing, PP333 had the most remarkable inhibitory effects on the growth indexes of Hibiscus rosa-sinensis.