During the vegetative growth period, the day temperature is controlled between 26℃ and 28℃, not more than 32℃; the night temperature is controlled between 20℃ and 23℃, not less than 15℃.
was performed one month before low temperature treatment, with a day temperature of 28℃~30℃ and a night temperature of 20℃~23℃. Combined with the enhancement of light, it promotes the accumulation of nutrients in the plants to better transform into reproductive growth .
is performed 4 to 5 months before the flowering period, the day temperature drops to 25℃ and the night temperature drops to 18℃. At this temperature, Phalaenopsis turns from vegetative growth to reproductive growth, and begins to form flower buds, which lasts for 1 to 1.5 months, completing the entire process of flower bud formation. When the pedicel grows to about 10cm, the low temperature treatment is finished.
pedicel elongation and bud development temperature treatment: the day and night temperature is (25℃~28℃)/(18℃~20℃). In this temperature environment, the pedicel can make the buds thick, the buds develop rapidly and plumply, and the flowers are good. When the buds are drawn out, pay special attention to the temperature changes, and not too fast, otherwise it is easy to cause bud fall. When flowering, the day and night temperature can be reduced to 25℃/18℃.
relative humidity should generally be controlled at 60% to 80%. Too much humidity is easy to infect diseases and too little humidity, which is not conducive to the growth of orchid . When the greenhouse is better ventilation, the relative humidity during the day is about 70% and at night is about 80%.
