In order to ensure that the emergence of the balloonflower seedlings is early, uniform, uniform and strong, the key links of soaking and germination must be grasped.
First, soaking Seeds soaked in water at 50 °C, and constantly stirring, so that the seeds evenly heated, until the temperature dropped to 20 °C with water washing, washing to the seeds do not fade, sticky, then use 15 °C ~ 20 Soak the seeds in water for 24 hours at °C to allow the seeds to absorb enough water.
Second, the germination to fully absorb the seeds, placed at a temperature of 22 ° C under conditions of germination, flip every 4 hours 1, the temperature should be shortened when the flipping time interval, every 12 hours with 15 °C ~ 20 °C Rinse the seeds with water and buds 5 to 7 days. When the germination rate is about 70%, the temperature is gradually reduced to the sowing temperature. Germination sowing is 20 to 40 days earlier than non-germination sowing, and the seedling quality is good.
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