Do Starry-eyed Seeds Need to Be Soaked?
As a popular ornamental flower among gardening enthusiasts, the seed treatment before sowing of starry-eyed flowers directly affects the germination rate. This article will analyze the necessity of soaking seeds from a professional perspective and systematically explain the full process techniques of sowing and seedling raising.
Key Steps in Pre-treatment of Starry-eyed Seeds
The Scientific Principles of Seed Soaking
Experimental data show that the germination rate of starry-eyed seeds soaked in warm water increases by 40%. It is recommended to use warm water at 30-35°C to soften the seed coat through osmosis and activate the enzyme activity inside the seeds. The optimal soaking time should be controlled between 4-6 hours to avoid excessive time leading to nutrient loss.
Comparison of Alternative Germination Methods
In addition to the traditional water immersion method, the paper towel germination technique can be used: spread moistened perlite substrate evenly on the seedling tray, sprinkle the seeds evenly, and cover with plastic wrap. This method has better humidity control and is especially suitable for use in humid southern regions.
Complete Guide to Sowing Starry-eyed Flowers
Substrate Ratio and Disinfection
It is recommended to mix a substrate of peat soil: vermiculite: perlite in a ratio of 3:1:1. Before use, water thoroughly with a 500 times solution of carbendazim to sterilize, ensuring that the substrate EC value is less than 0.5mS/cm and the pH is maintained at a slightly acidic environment of 6.0-6.5.
Key Points of Precision Sowing Technology
Use the spot sowing method to maintain a 3cm plant spacing, and the thickness of the covering soil should be 2-3 times the diameter of the seed. Use fine vermiculite for seedling raising to cover, which can retain water and ensure breathability. Immediately cover with a non-woven fabric with a light transmission rate of 70% after sowing.
Building an Intelligent Temperature Control System
Build a simple small arch greenhouse to maintain day-night temperature difference: 22±2°C during the day and 16±2°C at night. Combined with a timed misting system, keep the air humidity stable at 75%-85%. Use a lux meter to monitor and ensure that the light intensity during the seedling stage is less than or equal to 10,000 lux.
Through scientific germination and fine management, the survival rate of sowing starry-eyed flowers can reach over 90%. It is recommended to gradually increase the light after the cotyledons unfold and to apply the first topdressing when there are 3-4 true leaves. Mastering these core technologies can easily cultivate a sea of colorful starry-eyed flowers.