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蟹爪兰(Zygocactus truncactus)是短日照植物。其自然花期依品种不同而异,但始花期大都在11～12月,单花开放可持续1周左右,三年生盆花个体观赏期可达2个月左右,整个群体花期先后在3个月以上(图1)。正因其花开冬季,色彩艳丽,花形奇特,花期持久,因而深受人们喜爱。目前,国外比较大型的专业生产单位采取技术处理,已达到周年供花。在实际生产
Zygocactus truncatus is a short-day plant. The natural flowering period varies according to the variety, but the first flowering period is mostly from November to December, the single flower bloom lasts for about 1 week, the three-year potted individual ornamental period can reach about 2 months, and the entire population flowering successively in more than 3 months (figure 1). Because of its bloom in winter, colorful, unique flower-shaped, flowering lasting, so loved by the people. At present, foreign large-scale professional production units to take technical treatment, has reached the anniversary for the flower. In actual production