香子兰是名贵食品香料,原产热带美洲。1962年引入我所温室栽培,近年生长良好,开花很多。但进行人工自花授粉后子房脱落与落果现象很严重。自然落果率一般在50%以上,严重时可达80%以上。为获取香子兰丰收有必要对其落花落果的规律进行观察,为进而分析落花落果的原因提供依据。本文就是在几年观察的基础上对这一问题所作的总结。 Vanilla is a valuable food spice, native to tropical America. Introduced in my greenhouse cultivation in 1962, grow well in recent years, a lot of flowers. However, after artificial self-pollination ovary shedding and deciduous phenomenon is very serious. The natural fruit drop rate is generally above 50%, up to 80% in severe cases. In order to obtain the good harvest of vanilla, it is necessary to observe the law of its falling and falling and provide the basis for further analysis of the causes of falling and falling. This article is based on a few years of observation based on the summary of this issue.