The magical effect of plant growth regulators on flowers
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First, to promote growth
1, with the concentration of 5000-10000 mg / l than the long (also known as hydrazide, B9) solution soaking poinsettia, tea and other cuttings base, can promote growth, improve the survival rate of cuttings.
2. Soaking the seed with a gibberellin solution with a concentration of 50-200 mg/L can promote seed germination and growth.
3. When cutting, the base of the rose branches with a length of 6-8 cm is soaked in a concentration of 100-150 mg/L neonic acid solution to induce rooting.
Second, control plant shape
1. Spraying chrysanthemum stems and leaves with high concentration of ethephon solution at 1000 mg/L can effectively inhibit internode elongation and inhibit flower bud development.
2. Watering the soil with a paclobutrazol solution with a concentration of 500 mg/L can promote the dwarfing of the azalea plant, compacting the plant type, and increasing the canopy; evenly spraying the chrysanthemum with a paclobutrazol solution with a concentration of 100-150 mg/L can dwarf the plant. .
3. At the beginning of the growth of rhododendron, planting flowers in a soil with a concentration of 2000-10000 mg/L of chlormequat can dwarf the plants; use a solution of CMC at a concentration of 1000-1500 mg/L in the tulip. Spraying the leaves evenly after about 10 days of flowering promotes dwarfing and enlarges the bulbs.
4. When chrysanthemum cuttings are soaked in a solution with a concentration of 3000 mg/L for more than a long time, or after spraying for 1 to 2 weeks, the entire plant of a chrysanthemum is evenly sprayed twice (each interval is 7-10 days), which can promote the dwarfing of the chrysanthemum plants. The flowers increase.
Third, induced flowering results
1. Immerse bulbs of appendix bulbs with concentration of 500-1000 mg/L in ethephon solution for 12-24 hours to break the dormancy of seed bulbs and promote early flower buds. Gerbera and marigold flowers treated with ethephon can be used. Flowering in advance; Lily plants grown in the greenhouse can be flowered 1 week earlier with treatment with ethephon at a concentration of 10 mg/l; after treatment with ethephon, the number of flower buds in sea lice is inhibited. However, the flowering numbers of Aster and Tagetes will increase significantly; treatment of ornamental fruit flowers with an ethephon concentration of 100 mg/L will increase fruit set rate and speed up fruit ripening.
2. Spraying flower plants with a paclobutrazol solution with a concentration of 300-500 mg/L can promote flower bud differentiation; even spraying of ornamental fruit flowers with a paclobutrazol solution with a concentration of 400-500 mg/L can significantly increase the fruit setting rate.