How to promote flower buds of Cymbidium
As a treasure in the orchid family, Cymbidium is deeply sought after for its elegant and luxurious flower appearance. Many flower lovers often encounter difficulties in flower bud differentiation and unstable flowering periods during the cultivation process. This article will systematically analyze the four core techniques of promoting flower buds of Cymbidium hybridum, and deeply explore the key factors that affect the growth rate of flower buds. The four core skills of Cymbidium flower bud promotion are temperature difference control: The biological clock for starting flower bud differentiation is from June to October, and the temperature difference between day and night needs to be strictly controlled within the range of 10℃. Maintaining 20-25℃ during the day promotes photosynthesis, and cooling to 10-15℃ at night activates flowering genes. Laboratory data shows that temperature difference stimulation lasting for 30 days can increase flower bud differentiation rate by 67%. Light management: Accurately control the transformation of light energy into flower buds and gradually increase scattered light exposure to ensure 4-6 hours of soft light exposure every day. Use a sunshade net to adjust the light intensity to avoid noon light burning flower buds. It is recommended to use a LUX illuminometer to monitor during the flower bud expansion period and control the light intensity within the range of 15,000 - 25,000 LUX. Moisture control: Dry and wet cycles promote growth by using the "see dry and wet" method to water, and water it thoroughly when the moisture content of the substrate drops to 30%. Moderate water control during flower bud development can stimulate ethylene synthesis. Experiments have proved that flower bud differentiation efficiency is the best when the substrate moisture content is maintained at 55%-60%. It is recommended to use an electronic hygrometer to monitor the condition of the substrate. Nutritional ratio: The N-P-K ratio of the precision fertilization plan is adjusted to 1:3:2, and water-soluble phosphorus and potassium fertilizers are applied twice a month. It is recommended to use decomposed bone meal and potassium dihydrogen phosphate alternately, combined with chelated trace element fertilizer, which can increase the diameter of flower buds by 23%. Pay attention to avoid new flower buds when spraying foliar fertilizer. The key factors affecting the growth rate of flower buds Under ideal conditions, the daily growth of flower buds can reach 0.8- 1.2 cm. For every 1℃ increase in temperature (in the range of 15-25℃), the growth rate increases by about 9%. When the air humidity is maintained at 65%-75%, the flower bud development cycle can be shortened by 5-7 days. Regular treatment with gibberellin (50ppm) can accelerate cell division, but it needs to be combined with calcium fertilizer to prevent the pedicels from softening.
Through scientific environmental control and fine maintenance, it only takes 45-60 days for Cymbidium to differentiate from flower bud to flowering. It is recommended to record flower bud growth data every week, establish a maintenance log, and adjust management plans in a timely manner. Mastering these core technologies can make the cymbidium bloom year after year.