The use of plant growth regulators in flower production can promote flower growth, control plant shape, induce flowering, prevent flowering and fall off, and improve planting efficiency. The Chinese pesticide network Xiaobian collects the specific use methods of plant growth regulators for your reference:
Promote growth 1. Soak the base of the magenta, tea tree and other cuttings with a concentration of 5000 ~ 10000 mg / liter of long-term solution to promote growth and improve the survival rate of cuttings. 2. Soaking the seeds with a gibberellin solution at a concentration of 50-200 mg/L can promote the germination and growth of the seeds. 3. When cutting, the base of the rose branches with a length of 6~8 cm is immersed in a solution of nematic acetic acid at a concentration of 100-150 mg/L to induce rooting.
Control plant shape 1. Spraying chrysanthemum stems and leaves with high concentration of ethephon solution 1000 mg / liter can effectively inhibit internode elongation and inhibit flower bud development. 2. Irrigation of the soil with a concentration of 500 mg / liter of paclobutrazol solution can promote the dwarfing of the rhododendron plant, compact plant type, and increase the crown; and evenly spray the chrysanthemum with a concentration of 100-150 mg / liter of paclobutrazol to dwarf the plant. . 3. In the early stage of rhododendron growth, watering with a solution of chlormequat at a concentration of 2000-10000 mg/L can make the plant dwarf; according to the pesticide network , a solution of chlormequat at a concentration of 1000-1500 mg/L is used. Evenly spraying the leaves about 10 days after the flowering of the tulip can promote the dwarfing of the plants and enlarge the bulbs. 4. When chrysanthemum cutting, use a long-term solution with a concentration of 3000 mg / liter, or spray the chrysanthemum whole plant evenly 2 times (1 to 10 days apart) 1 to 2 weeks after transplanting. Big flower.
Inducing flowering results 1. Soaking the bulbs of the bulbous appendix for 12 to 24 hours with an ethephon solution with a concentration of 500-1000 mg/L, can break the dormancy of the bulbs and promote the early flowering; the gerbera treated with ethephon, Marigold can be flowered in advance; lily plants grown in greenhouses can be flowered one week in advance with a solution of 10 mg/L ethephon; after treatment with ethephon, sea urchin and marigold, the number of flower buds of sea otters will be The inhibition decreased, while the number of flowering of aster and marigold increased significantly. Treatment of ornamental fruit flowers with a solution of 100 mg/L ethephon increased the fruit setting rate and accelerated fruit ripening. 2. Spraying flower plants with paclobutrazol solution at a concentration of 300-500 mg/L can promote flower bud differentiation; spray the ornamental fruit flowers evenly with a paclobutrazol solution at a concentration of 400-500 mg/L. Can significantly increase the fruit set rate. 3. Evenly spray the chrysanthemum plant with the concentration of 1000 mg/L gibberellin solution in the vernalization stage to enhance the flowering function; use a gibberellin solution with a concentration of 1~5 mg/L before the cyclamen flowering before flowering. Spray can promote flowering. 4. The pesticide manufacturer sprays the pineapple leaves with a concentration of 5-10 mg/L naphthalene acetic acid solution to make the pineapple flower early; uniformly spray the surface of the ornamental fruit flower with a naphthalene acetic acid solution with a concentration of 50-100 mg/L. Delay the ripening of the fruit, thus prolonging the flower and fruit viewing period.
Anti-flower disease and anti-shedding 1. Evenly spray the tulip seedlings with a concentration of 300-400 mg/L gibberellin solution, which not only promotes early flowering, but also forms an anthocyanin early to prevent the occurrence of flower plague. 2. Use a concentration of 50 mg / liter of naphthaleneacetic acid to spray evenly on the flowers and leaves of the flower in the first 7 days of flowering, which can reduce the natural shedding of flowers and leaves at high temperature and low illumination. 3. Citrus saplings in the late autumn shoot growing season with a concentration of 1000 ~ 2000 mg / liter of chlormequat solution plus a concentration of 1% ~ 2% calcium chloride solution mixed, evenly sprayed on the crown, can enhance citrus saplings The cold resistance function; when the flower buds of the peach blossom bloom, evenly spray with the chlormequat solution at a concentration of 100~1000 mg/L, which can enhance the cold resistance and resilience of the flower bud.
Pesticide manufacturers remind everyone that do not blindly use drugs, we must strictly follow the dosage in the above program to improve planting efficiency and promote flower growth.
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