【摘要】 以云南澳洲坚果种植区所栽品种为调查对象，采用计数法实地调查开花情况，并在云南省勐海县南糯山基地以品种‘O.C’为试验材料，在花芽分化前喷施6种植物生长调节剂，观测开花情况。结果表明：云南澳洲坚果各种植区正常盛花期为2—3月，大多数种植区存在不同程度的非正常花期开花现象，其中品种‘O.C’和‘HAES788’尤为明显，且高海拔种植区非正常花期开花现象更明显。喷施6种植物生长调节剂比较发现，多效唑类可显著促进澳洲坚果提前开花，赤霉素类抑花效果较好，其余处理对开花影响不显著。更多还原

【Abstract】 A survey was conducted in situ in macadamia-planting area of Yunnan to investigate the flowering situation by counting method. Taking the variety ’O.C’ planted in Nannuo Mountain of Menghai County, Yunnan Province as tested material, six plant growth regulators were sprayed before flower bud differentiation to observe the flowering situation. The results showed that the blooming of Yunnan macadamia lasts normally from February to March, but most of the growing areas flowered in abnormal period to some degree, among which ’O.C’ and ’HAES788’ were in particular. There is obvious for flowering in abnormal period at high-altitude planting areas. In six tested chemicals, it`s found that paclobutrazoles could significantly promote the early flowering of macadamia and gibberellin had a better flower inhibitory effect, while the others had no significant effect on flowering.更多还原