Assessing the visual quality of urban waterfront landscapes:the case of Hefei, China Effect of Number of Short-day on Flowering and Visual Quality of Poinsettia Effect of Number of Short-day on Flowering and Visual Quality of Poinsettia Effects of Night Temperature on Flowering and Physiological Index of Poinsettia Under Short-day Studies on the Characteristics of Response to Photoperiod in Calceolaria × herbeohybrida‘Dainty’ Studies on the Characteristics of Response to Photoperiod in Calceolaria × herbeohybrida‘Dainty’