1. The seeds of various grass flowers are treated with chemicals, washed and germinated until they turn white.
(1) treated with 0.2% thiourea solution: Ye Mudan, Paeonia suffruticosa, etc.
(2) Treating with 0.2% potassium nitrate solution: snapdragon, impatiens, calendula, cosmos, amaranth, Buddleja, pansy, Petunia, corn poppy, fire bud, etc.
(3) Treating with 25× 10-6ga solution: bouquet of red flowers, Petunia, lotus flower buds, etc.
(4) Treating with 100× 10-6ga solution: zinnia, cyclamen, begonia, Erythrina macrophylla, Primula, Salvia splendens, etc.
2. Temperature treatment:
(1) Low temperature treatment: ancient rare plants, Fu Lushou, Hua, etc. If stored at 5℃ for 3 days, it can germinate smoothly.
(2) Temperature changing treatment: Petunia is treated at 20℃18h, at 30℃ for 6h, or at 20℃16h, at 30℃18h, and blackcurrant and wild goose red are treated at 20℃ for 8h.
3. The seeds of Cyclamen persicum and Begonia are treated with warm water, soaked in warm water at 45℃ for 10 hour, and then filtered to accelerate germination, which can germinate smoothly.
4. Coconut seeds can germinate smoothly after being treated with boiling water and scalded with boiling water.
5. The seeds of Rosaceae can germinate smoothly after being placed in moist soil at 5℃ for 90- 100 days.
6, light processing:
(1) Seeds with good luster have good luster, such as Pogostemon rugosa, snowball, Begonia Siji, Rieger Begonia, Bulbous Begonia, Impatiens africana, snapdragon, and a bunch of red flowers. Materials with good light transmittance are used as sowing media, such as vermiculite and pearl salt.
(2) Keep away from the light For the seeds that are protected from the light, they should be placed in a place that is protected from the light after sowing (they should be moved to a bright place in time after budding) or fully covered with soil, such as: Yanlaihong, Iris, Fuluhuawang, Rishun, Black, Marigold, Marigold, Peacock Grass, Prunus mume, Corydalis tricolor, etc.