控水与植物生长调节剂对‘小叶紫’三角梅花期的影响

The Effects of Water Control and Growth Regulators on Flowering of Bougainvillea Glabra′Sao Paulo′

花期调控是三角梅景观应用的关键技术。于2018年在厦门市园林植物园,对‘小叶紫’三角梅盆栽苗进行控水与8种植物生长调节剂处理试验,探讨控水和植物生长调节剂对其花期的影响。结果表明,‘小叶紫’三角梅最佳控水时间为15 d左右,能提前盛花期且显著提高花量。在控水条件下,结合喷施CCC、缩节胺、6-BA、B9对‘小叶紫’盛花期无明显影响;PP333300 mg·L^(-1)、GA 50~200 mg·L^(-1)、ETH 50 mg·L^(-1)能提前‘小叶紫’盛花期;CPPU 0.5、1.0、2.0 mg·L^(-1)能推迟‘小叶紫’盛花期。

The florescence regulation of Bougainvillea is a key technology in landscape application.In this study,the effects of water control and 8 kinds of growth regulators on the flowering of′Sao Paulo′were studied in Xiamen Botanical Garden,2018.The results showed that the optimal time of water control is 15 days or so,should advance flowering and has the most number of flower;CCC,Mepiquat chloride,6-BA and B9 had no significant effect on flowering;300 mg·L^(-1)of PP333,50~200 mg·L^(-1)of GA and 50 mg·L^(-1)of ETH could advance flowering;0.5 mg·L^(-1),1.0 mg·L^(-1)and 2.0 mg·L^(-1)of CPPU could delay flowering.