How can the germination rate of tiny flower seeds be improved?

When we sow some tiny flower seeds, a very low germination rate often occurs, which troubles flower lovers greatly. Today, the editor will share with everyone

methods for improving the germination rate of tiny flower seeds:

First, you must fully understand the characteristics of the seeds. Of course, this also includes the required temperature, humidity, light, soil, etc., which is very important. For example: German primrose (Primula obconica) must not be soaked before sowing, as the seeds easily lose vitality after soaking. The seeds of Persian buttercup (Ranunculus asiaticus) prefer low temperatures, and the seedling-raising temperature should be around 8°C; above 12°C, it is very difficult for them to germinate. Seeds such as petunia and gloxinia (Sinningia speciosa) need around 25°C; if after soaking they are left in a low-temperature place for 1-2 days, the seeds may rot and not a single seedling will appear. There are also some seeds that are light-loving, and some that are light-avoiding; only under suitable environmental conditions can good seedlings be grown.

Second, choose the correct sowing equipment. Choose a hard plastic seedling box 50-60 cm long, 30-40 cm wide, 8-10 cm high, with many small holes in the bottom. You can also make one yourself from wooden boards, with the size determined by the sowing quantity, but it should not be too high. If it is too high and holds a lot of soil, it will not dry easily after prolonged waterlogging; if it holds little soil, the walls of the container being too high will affect light. The bottom of the wooden box must have drainage holes, and before use it must be soaked in water for 2-3 days until thoroughly soaked, otherwise the box and soil will easily separate.

Next, prepare the substrate. Take decomposed and finely sieved manure, humus soil, fine sand and garden soil in a ratio of 2:1:1:1, sieve them with a sieve that can sift down sorghum grains, and disinfect them by exposing them to sunlight for one day.

In addition, fill the box. First spread a layer of coal cinders the size of soybean grains, 1-2 cm thick, on the bottom of the box. Then spread the prepared substrate on top and level it, 4-5 cm thick. Then use a fine sieve to sift a layer of fine substrate on top, about 1 mm, to fill in the soil particles, so that the tiny seeds do not sink into the soil and are unable to break through the surface. But the fine soil must not be too much, otherwise moss will easily grow.

Sowing. Mix the seeds with fine sand in a ratio of 1:1000-2000, place them in a basin and mix evenly, then spread them evenly over the substrate. Immediately press lightly on the soil layer with a smooth wooden board; do not press firmly, just make the seeds combine with the soil. Place the wooden box in water to soak, with the water level not exceeding the soil surface, adding water as it soaks until it is thoroughly soaked. Take the thoroughly soaked box out of the water, cover it with glass to retain moisture (do not use plastic film, because it easily drips and harms the seedlings), drain slightly, and immediately move it to an environment suitable for seed germination. Depending on the variety, the fast ones germinate in 4-5 days, while the slow ones germinate only after 7-10 days. After the seeds germinate, remove the glass immediately, and after most have emerged, move them to a suitable place for growth and care. It is worth noting that before two true leaves have grown, you must never water or spray from above. For the rest, carry out normal seedling-stage management.

That is all for sharing the methods for improving the germination rate of tiny flower seeds. In short, when actually carrying out the operation, everyone must pay strict attention to every step and every detail, so as to improve the germination rate of tiny flower seeds. Friends who are interested can give it a try.