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郁金香属于在22℃的高温下进行花芽分化,再经一定时间的低温处理解除休眠,在茎得到充分生长后才能开花的鳞茎植物。低温处理前,还要在一定的过度温度下处理,使鳞茎内的花得到充分的发育。在一些国家或地区,郁金香在自然条件下可获得足够的低温,至春天长到一定高度后开花,无须人工低温处理。但有研究表明,若在正常冬天之前的较早阶段低温处理鳞茎,可使其提早开花。于是种球商为了使鳞茎适应不同的栽培地区和栽培目的,对其做了不同的处理,这就产生了人们常听说的5℃郁金香球、9℃郁金香球以及未经处理的郁金香球(常温球)。 5℃球是干鳞茎在5℃或2℃的低温贮藏室内处理后
Tulip belongs to the bulbs that flower bud differentiation under the high temperature of 22 ℃, then release the dormancy by low temperature treatment for a certain period of time, and bloom after the stems are fully grown. Low-temperature treatment, but also in a certain degree of over-temperature treatment, so that the flowers within the bulb have been fully developed. In some countries or regions, tulips can get enough low temperature under natural conditions and bloom after reaching a certain height in spring, without artificial low-temperature treatment. However, studies have shown that if the bulb is treated at a low temperature at an early stage of normal winter, it can be prematurely flowered. So the ball in order to make the bulb adapt to different cultivation areas and cultivation purposes, to do a different treatment, which led to people often heard of 5 ℃ tulip ball, 9 ℃ tulip ball and untreated tulip ball ( Room temperature ball). 5 ℃ ball is dry bulbs in the 5 ℃ or 2 ℃ cold storage room after treatment