Science. 1960 Aug 5;132(3423):354. doi: 10.1126/science.132.3423.354.
When coffee plants are watered at relatively short intervals, so as to maintain the water content of the soil at close to field capacity, the flower buds remain dormant and no fruits are formed. Irrigation or rain induces flowering only when preceded by a period of water shortage. Water stress is apparently essential to break the dormancy of coffee flower buds.
当咖啡植株被短时间间隔浇水，以保持土壤含水量接近田间持水量时，花蕾保持休眠状态，不会形成果实。只有在经历一段缺水期之后，灌溉或降雨才会诱导开花。显然，水分胁迫对于打破咖啡花蕾的休眠是必要的。
