Propagation methods of African violets

African Violet is a kind of flower plant that we like very much, and it is also a flower that we like to decorate and beautify the environment. The plants are small, the flowers are beautiful and lovely, the effect of embellishment is good, and the breeding is relatively simple. Let's take a look at the breeding methods of African violets.

Leaf cutting reproduction method

African Violet commonly used cutting propagation method, mainly for leaf cutting, after flowering to select robust leaves, petiole left 2 cm long cut off, slightly dry, inserted into the sand bed, maintain a high air humidity, room temperature 18-24 ℃, rooting 3 weeks after cutting, 2-3 months will produce seedlings, moved into 6 cm pot. In the process of cutting, vitamin ratio treatment was beneficial to the growth of African violets after rooting, and the petiole treated with 25 mg / L kinetin for 24 hours was beneficial to the formation of adventitious buds. It takes 4 to 6 months from cutting to flowering.

Stem cutting propagation method

Stem insertion propagation is also a breeding method chosen by the African Violet Society, mainly after the flowers are withered in spring. Combined with turning basin and changing soil to divide underground tuber planting, the seedling is fast, but the plant shape is not good enough, at the same time, the growth is not exuberant because the plant is not renewed.

Tissue culture and reproduction method

At present, the more popular propagation method of African violets is tissue culture, with leaves, petioles and epidermis as explants. MS medium was added with 1 mg / L 6-benzylaminoadenine and 1 mg / 1 naphthylacetic acid. Adventitious buds appeared 4 weeks after inoculation, and rooting plantlets could be planted 3 months later. The plantlets were transplanted into the matrix of rotten leaf soil and peat bryophyte, and the survival rate was 100%. At present, African violet test-tube plantlets are produced in the United States, the Netherlands, Israel and other countries. However, there are more seedlings cultivated in this way, which is not suitable for family breeding.

Sowing and breeding method

The sowing and propagation of African violets can be carried out in spring and autumn, and it is better to sow in autumn from September to October in greenhouse, with high germination rate, strong seedling growth, and more big flowers in the following spring. Sow in February and blossom in August, but the growth potential is worse and the flowering is less. The seeds of African violets are small, and the sowing pot soil should be fine. After sowing, the soil should not be covered, and it should be flattened. The optimum temperature for germination was 18-24 ℃, germinated 15-20 days after sowing, and transferred seedlings 2-3 months after sowing. At the seedling stage, pay attention to the basin soil should not be too wet. It usually takes 6-8 months from sowing to flowering.