Hyacinth, with its bright flowers, dignified inflorescences and elegant plant shape, is quiet and elegant against the backdrop of smooth and fresh green leaves. It is one of the famous bulbous flowers that bloom in early spring. It is also an important potted flower species and can be widely used in garden decoration and potted water. Cultivate or cut flowers for viewing, etc.
The main applications of plant growth regulators on hyacinth:
1. Break seed dormancy and promote germination
Soak the naturally firming seeds of hyacinth in tap water at room temperature for 24 hours, and then soak them in 10 mg/L gibberellic acid solution for 72 hours to promote germination and increase the seed germination rate.
2. Promote scale cutting propagation
When cutting hyacinth scales, soak the sterilized bulb scales in 0.5mg/L IAA or 1.0mg/L NAA solution for 30 minutes, and then cut them in a matrix of perlite: peat = 1:1, which can significantly promote growth. The formation and growth of bulbs contribute to the increase in the number and weight of small bulbs.
3. Promote plant growth and development and extend flowering period
Spray 100mg/L gibberellic acid solution on the leaves for the first time when the hyacinth plant is about 5cm tall, and then spray it every 7 days to promote plant growth and development, including plant height, leaf length, leaf thickness, and single leaf area. , floret diameter, inflorescence length and inflorescence height were all significantly increased, and the budding time was advanced by 5 days and the flowering period was extended by 4 days.
4. Dwarf plants and improve ornamental value
Culture hyacinth bulbs in hydroponics. After being protected from light and dark for 5 days, spray the seedlings with 200 mg/L Paclobutrazol solution twice a day for 3 consecutive days to dwarf the hydroponic hyacinths. Significantly improve the ornamental quality. Applying 20~50mg/L salicylic acid during hydroponics can effectively delay the aging of hyacinth and improve its ornamental quality.
In addition, on the 40th day of planting (plant height is about 5cm), start spraying 100mg paclobutrazol solution. After the first spraying, spray it every 7 days for a total of 4 times to make the plant dwarfed appropriately. , the leaf area is moderately reduced, the plants are more compact, the leaf thickness is increased, the budding time is delayed by 4 days, and the flowering period is extended by 4 days, significantly improving the ornamental value.
