Breeding methods of bougainvillea
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Breeding methods of bougainvillea
The breeding methods of bougainvillea include cutting propagation, high-pressure propagation, seed propagation, and grafting propagation. The commonly used breeding methods are seed propagation, grafting propagation, and cutting propagation, among which the cutting method is widely applied. Bougainvillea can be propagated at any time of the year, but the survival rate is higher in spring, summer, and autumn.
The breeding methods of bougainvillea include cutting propagation, high-pressure propagation, seed propagation, and grafting propagation, among which cutting propagation, seed propagation, and grafting propagation are commonly used. The cutting method is widely applied.
Cutting propagation(1) Timing: Bougainvillea can be propagated at any time of the year, but the survival rate is higher in spring, summer, and autumn. The survival rate in spring (March to April) is about 70%, while in summer (May to June), it can reach over 90%. In winter, propagation usually needs to be carried out in a greenhouse.
(2) Method: Cut the semi-lignified branches with strong growth potential into sections about 15 centimeters long and insert them into the sand bed. Maintain the temperature around 20-25°C. Roots can grow in less than a month, and the plant can bloom by the second winter.
Water culture propagation(1) Timing: Bougainvillea prefers a warm environment and is suitable for water culture propagation in May of spring and October of autumn. If done indoors, it can be carried out at any time of the year.
(2) Method: Choose healthy and robust branches, then soak them in water. During water culture, it is important to maintain water quality. In the summer, the water usually needs to be changed daily, while in normal conditions, changing every two days is fine. Roots can grow in about 45 days, after which they can be transplanted into potting soil for care.
Grafting propagation(1) Timing: Spring and summer are the most suitable times for grafting bougainvillea, as the temperature is conducive to its growth. The wounds from grafting heal quickly during this period. Although grafting can also be done in autumn and winter, the low temperature may cause the grafting to fail, resulting in a lower survival rate than in spring and summer.
(2) Method: Choose a vigorous plant as the rootstock, make a cut on a thick branch, insert the trimmed scion into it, and wrap it with plastic wrap. When the sprout is more than three centimeters long, the grafting is considered successful.
High-pressure propagationHigh-pressure propagation is more troublesome but convenient for personal cultivation. At the top of a lignified branch 15 centimeters from the tip, peel off the outer bark about two centimeters wide, then wrap the exposed area with plastic wrap and nutrient soil. In about 20 days, the plant will grow new roots, after which it can be cut and placed in soil for care.
The above is a specific introduction to the breeding methods of bougainvillea for reference by netizens.