Five factors affect flower seed emergence

Problems with the quality of seed When farmers purchase, they should pay attention to the production date and shelf life indicated on the packaging bag. In addition, when buying seeds, flower farmers should have a basic understanding of them. In general, seeds sowed in spring usually bloom in summer and autumn; seeds sown in autumn generally bloom in spring and summer, with the exception of woody flowers. If the sowing date is reversed and there are no certain conditions for back-season cultivation, it is difficult to achieve the desired flowering purpose.
Seeds that are not in place easily germinate can be soaked in seed, such as a string of red seeds soaked in warm water at room temperature 40°C for a day or two, rinsed and ready for sowing. Hard seeds, such as asparagus, peony, hariri, beryl red, and reed, etc., are best soaked in hot water at 40°C for about 48 hours before sowing in pots and soils. After 20 days to 30 days, germination can take place. Grow. For the dormant period, easy to germinate the Pearl Plum, Bauhinia, soaking with warm water 40 °C -60 °C for 24 hours -48 hours can be directly sowing. Some flower seeds need to be treated with low temperature for a certain period of time in order to promote after-ripening and break the dormancy of the embryo to germinate, such as cloves, waxy plums and some autumn-sown herb flowers. Some flowers have the characteristics of double dormancy of radicles and hypocotyls, that is, their radicles need to pass the high temperature stage of 25°C-32°C for 1 to 2 months or more to break the dormancy, such as the seeds of tassels, pupa, and peony. .
Unreasonable sowing date Seeds with large grains, solid outer skin or oily seeds, such as rose, rose, pomegranate, kumquat, broad magnolia and other flower seeds, are suitable for sowing in autumn. The seeds with smaller particles and loose skin, such as chrysanthemum, asparagus, impatiens, araceae red, and gardenia, are suitable for late spring sowing. Seeds that need high temperature to germinate should be sowed in time after maturity. Such as cyclamen, cineraria, and primrose should be sown in early summer.
Problems with sowing quality There are two types of sowing in open sowing and pot sowing in the sowing of flowers. They all require loose soil and ventilation, small particles, and good drainage. It is better to use rich humus nutrients and moderate acid and alkaline fertilizer to help the seeds emerge. Specific sowing methods include sowing, drilling and sowing. The water must be poured before sowing, covered with plastic film after sowing, to prevent the soil from drying and affecting seed germination and emergence. The sowing depth is generally 2.5 times the diameter of the flower seeds.
Ignoring the effects of light After appropriate sowing of flower seeds, appropriate lighting can increase the temperature of the soil and induce seed germination. This is especially important for seeds that break through the seed coat and roots and buds. This not only affects the seedling emergence rate, but also directly affects the energy. Whether it grows into a good seedling or a strong seedling. Therefore, from the sowing to transplanting stage, the need for illumination of flowers should be met as far as possible, and the light intensity is a gradual transition from dark to weak light to natural light.

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