African violet breeding methods

The culture method of African violets, African violets are Gesneriaceae, perennial evergreen herbaceous flowers, extremely short stems, fleshy leaves, dense fine hairs, clustered in the shape of masts, hearts or waves, and lotus-shaped plants. Flowers often 3-5 pedicels successively drawn from leaf axils, pedicels with 3-5 or more flowers, flower diameter 3-4 cm, Corolla bell-shaped parted, for two lips, upper lip bifid, lower lip trifid, lobes elliptic, flowers are purple, blue, purple, pink, from, yellow and white background red edge or pansy edge and so on.

African Violet flowers are also fragrant and come in several varieties with single, double and different flower sizes. The florescence lasts for 2 months in summer and autumn.

African Violet has a warm and humid climate, and the suitable temperature is 18-26 ℃. The room temperature should not be lower than 10 ℃ in winter and not more than 30 ℃ in summer. Like semi-overcast, avoid bright light in high temperature season, and keep the air fresh and moist. Sandy culture soil rich in humus, loose and fertile, and strong permeability is required. Various places can be adjusted according to local conditions, such as sandy loam, rotten leaf soil, peat soil, rice bran ash (carbonized rice husk) and so on.

Propagation: leaf cutting: take half-year-old or annual leaves in vermiculite, normal watering and maintenance, new plants can grow in about 2-3 months, and several new plants can be propagated in one leaf; you can also scratch the petiole of old leaves on the plant, and soon there will be new plants to grow, which can be taken down and cultivated; seeds can also be propagated, but leaving seeds will consume energy, and generally do not do so. Fertilization: I use horseshoe for all my flowers, but I don't give fertilizer to African violets. If you want to apply fertilizer, I suggest you use more phosphorus and potassium fertilizer and less nitrogen fertilizer to prevent the overgrowth of leaves, and it is advisable to apply fertilizer frequently with thin fertilizer. Four seedlings were bred this spring after cutting a leaf last winter. One was given to a classmate, and the remaining three grew crudely in a basin; nevertheless, it still knew the buds on the ground. African Violet-African Violet Culture method | African Violet Picture African Violet African Violet (scientific name: Saintpaulia ionantha), also known as African pansy, is a perennial herb of the genus Gesneriaceae. Stemless, whole plant hairy. Leaves ovate, petiole stout and fleshy. One or more flowers together, lavender. There are many varieties, such as large flowers, single, semidouble, double, variegated leaves, etc., with purplish red, white, blue, pink and double colors. Culture methods of African violets

1. Soil: the basin soil should be loose and fertile, and the soil rich in humus should be used. It is generally mixed with 5 parts of rotten leaf soil, 3 parts of garden soil, 2 parts of rotten stable fertilizer soil, or 6 parts of rotten leaf soil and 4 parts of Gaza loam. it can also be mixed with rotten leaf soil, peat soil and sandy soil.

2. Watering: watering is very important, low temperature in early spring, watering should not be too much, otherwise stems and leaves are easy to rot and affect flowering. Summer high temperature, dry, should be more watering, and spray water to increase air humidity, otherwise pedicel sagging, florescence shortened. However, when spraying water, the leaves spatter too much water, which will also cause the leaves to rot. In autumn and winter, when the temperature drops, watering should be reduced appropriately.

How to raise African violets

African Violet prefers semi-shade, warm and humid environment, pay attention to ventilation, avoid high temperature and strong light. Spray watering can be used, based on the principle that the surface of the basin soil is not dry and not watered, but it can not be dry thoroughly, otherwise it will affect the growth and flowering. General fertilizers require ternary or multi-component compound fertilizers of nitrogen, phosphorus and potassium. The growth temperature should not be higher than 28 ℃, generally between 15-25 ℃. The high temperature environment is not conducive to growth. If African violets are cultured due to lack of light, they will grow leaves and do not blossom. For example, if the sun is too strong, the leaves will grow macula.

The role of African violets

The role of African violets: 1. Ornamental value. African violets are short and can blossom all the year round with velvet-thick leaves, handsome and elegant flowers, rich and colorful flowers and high ornamental value. they are excellent ornamental plants indoors.

The role of African violets: 2, decorate the home. African violets are all hybrid cultivation, with many varieties, and there are many kinds of flowers, such as white, pink, red and blue. The plant is short, flowering in four seasons, and is more shade-resistant. It is a good decoration for indoor windowsill, living room, case table and so on.

Disease Control of African Violet

1. African violet root-knot nematode disease

African violet root-knot nematode is a root disease caused by root-knot nematode. The main symptom is that large and small nodules can be formed on fibrous and lateral roots. The root nodes begin to be milky white, turn pale brown in the later stage, and cut open. There are very small milky nematodes in it, which will lead to dwarf and dysplasia of African violets.

Solution: 5% grams of phosphorus can be used as 0.1% of the soil weight, or 0.75 grams of 6 cm flowerpots, or 0.5 grams of 6 cm flowerpots can be used. These two agents can be used during the growing period, but the effect is better before planting. 10% propoxur, 5.6 grams per square meter, with an interval of at least 4 weeks between treatment and planting. In addition, when planting in the nursery, the soil damage level can be evenly applied to the roots of seedlings within 15-20 cm according to the dosage of 2 kg / mu, which can effectively control the occurrence of nematodes.

How do African violets reproduce?

1. African Violet Leaf insertion Propagation

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.

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