Eustoma mainly reproduces with seeds. Its seeds are very small and they belong to good light seeds. It is better to keep the luminosity above 5000 lux after sowing. The germination rate is between 80% and 90%, the germination temperature is between 15-30°C, the optimum temperature is between 20-25°C, and the germination will be delayed if the temperature is below 15°C, but the germination temperature is higher than 35°C. In the natural environment, sowing in different months, there is a big difference in the number of days from sowing to flowering. For the same variety, it takes only 4 months to bloom in spring sowing and 8 to 10 months to sow in May-September. There are also great differences between different varieties. Early spring sowing varieties can flower in 100-120 days, while late-generation varieties need 150-180 days to flower. In general, it is therefore important to adjust the harvesting period according to the different production cycles of the species.
The growth rate of Eustoma seedlings is greatly influenced by temperature. It takes about 40-50 days from sowing to 4 leaf summer and 80-90 days in winter. The night temperature of the nursery is preferably 15-18°C and the daily temperature is between 20-23°C. Eustoma can also grow under nighttime conditions of 21°C and 34°C, but it is prone to rosettes. During this period, 20 N-44P-166K compound fertilizer was sprayed once per week based on the application of 200 mg/L of nitrogen. Sowing in spring and fall/winter seasons can grow under full light conditions. In summer and early autumn sowing should be properly shaded. Pay attention to keep the soil moist during seedling stage. It is best to nurse seedlings under intermittent spraying conditions. If transplanting seedlings is needed, one seeding should be sown. After the month and before the second pair of leaves were unfolded, they were planted in a 3 cm 3 cm line and shaded slightly until they resumed growth.
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