In autumn, the growth activity of healthy adult plants will increase after receiving low temperature. When the temperature is properly reduced in autumn and winter, the growth rate of all over the sky will slow down. Once the temperature is increased, flower buds will form in the long sunshine environment, and at the same time, the flower stems will rapidly extend and blossom.
In summer, when the temperature is high, the growth activity of the star will decrease. In the cool autumn and short sunshine, the star will welcome the winter in the rosette state.
If the rosette state is formed, the activity of growth is very low in autumn and winter, and it is in the state of difficult to bloom. High temperature and long sunshine can be used to prevent the formation of rosette.
Method 1: with the temperature of 15-25 ℃ and more than 16 hours of sunshine (preferably night lighting), the plant can bloom in autumn and winter or early spring.
Method 2: from the middle of July, the plants were refrigerated at 2-3 ℃ until the middle of September, and then cultivated at the temperature above 8 ℃ for a long day, and they would bloom in December; or the plants were stimulated with drugs, sprayed with aminopurine (300 × 10-6), or sprayed with gibberellin (300 × 10-6), which could significantly promote the elongation and flowering of Tianxing.
