Senecio Cineraria is a perennial herb of the genus Cerasus in the Compositae. Senecio Cineraria branching, height is in general 50 ~ 80 cm, leaf one to two pinnate division, front and back are silvery white pilose. Its silvery white leaves look like a white cloud from a distance, and other colors of pure flowers with excellent planting effect is an important flower bed foliage plant. Thus many flower lovers want to propagate Senecio Cineraria. How does Senecio Cineraria propagate? Here are two common propagation methods of Senecio Cineraria.
Seed propagation methods of Senecio CinerariaSeed propagation method of Senecio Cineraria
is very common. Generally, at the end of August and early September in the field seedbed, about half a month or so sprout neatly, the seedling stage growth is slow. When there are 4 true leaves, put into a 5-inch basin or transplant into a field, and then transplant into a basin after the spring of the following year. During growth, the height and canopy diameter of the plant can be controlled by coring.
Silverleaf chrysanthemum is fond of fertilizer type plant, on basin after 1, 2 weeks, should apply thin manure or spray leaf surface with 0.1% urea and potassium dihydrogen phosphate, and we need to apply fertilizer every week after. It was found that there was no occurrence of disease and insect pests. The specific method is as follows: because in the whole growing period is more afraid of heat, and the optimal temperature for sowing is 15 ~ 20℃, so often in the middle and late September after autumn sowing: with the matrix for disinfection, the best method is to put it into the pot fried hot, what diseases and insects can be hot. Soak the seeds in warm water (about the same temperature as washing your face) for 12 to 24 hours until they absorb water and swell. For seeds that germinate easily, which are very common, this can be avoided.
For the hand or other tools difficult to pick up the small seeds, you can wet one end of the toothpick, the seeds one by one stick on the surface of the matrix, covering the matrix 1 cm thick, and then put the pot into the water, the depth of water for the pot height of 1/2 ~ 2/3, let the water slowly soak up.
For larger seeds that can be picked up by hand or with other tools, place the seeds directly in the matrix and sow at intervals of 3 x 3 cm. After sowing, the substrate was covered and the covering thickness was 2 ~ 3 times of seed grain. After sowing, spray can be used, find the original sprinkle and wet the seed matrix wet. Later when the pot soil slightly dry then dows the water. Also, we should pay attention to watering the strength so it can not be too large, so as not to rush up the seeds.
Management after sowing
After sowing in the autumn, when the cold wave low temperature, can use plastic film to wrap up the flowerpot, in order to heat preservation moisture. Expose the membrane to the sun before 9:30 a.m. or after 3:30 p.m., otherwise the seedlings will grow very weak. When most of the seeds have come out, the seedlings should be thinnest properly: the sick and unhealthy seedlings should be pulled out so that there is a certain space between the remaining seedlings. When most seedlings have two or more leaves, they can be transplanted to the pot.
Cutting propagation methods of Senecio CinerariaCutting propagation methods of Senecio Cineraria
is another common method for Senecio Cineraria propagating.
The optimum rooting temperature of cuttings was 18°C ~ 25°C, lower than 18°C. The rooting was difficult and slow. When the temperature is higher than 25°C, the cuttings are susceptible to bacterial infection and decay, and the higher the temperature is, the higher the rate of decay is. When low temperature occurs after cutting, the insulation measures are mainly used to wrap up the flower pots or containers used for cutting with the film. Cutting temperature is too high temperature, cooling measures are mainly to give cuttings shade, to block out the sun of 50 ~ 80%, at the same time, to spray cuttings, 3 to 5 times a day, sunny temperature higher number of spray is more, cloudy and rainy temperature lower temperature larger number of spray is less or no spray.
After cutting, the relative humidity of air must be maintained at 75 ~ 85%. The cuttings can be sprayed to increase the humidity, 1-3 times a day. The higher the temperature in sunny days, the more times of spraying; the lower the temperature in cloudy and rainy days, the less or no spraying. But with too much spray, cuttings are susceptible to infection and decay, because many kinds of germs are present in the water.
Cutting propagation cannot be applied without sunlight, but, the stronger the light, the higher the temperature inside the cuttings, the more exuberant the transpiration of cuttings, the more water consumption, not conducive to the survival of cuttings. Therefore, after cutting, you must cover up the sun 50 ~ 80%, to grow the root system, and then gradually remove the shading network: sunny every day at 4:00 p.m. remove the shading network, the next day before 9:00 a.m. Cover the shading network.
Up the plate, the first in the pelvic floor in 2 ~ 3 cm thick or coarse grained matrix ceramsite as a filter layer, cover it with full of rotten organic fertilizer as basal, thickness of about 1 ~ 2 cm, then cover with a layer of substrate, about 1 ~ 2 cm thick, and then into the plant, to separate the fertilizer from the root, avoid burning roots. The substrate for the upper basin can be selected from the following. Garden soil: slag = 3:1. Or garden soil: medium coarse river sand: sawdust (shavings) = 4:1:2. Or paddy soil, pond mud, one of the leaf rot soil. Or peat + perlite + ceramsite =2 parts +2 parts +1 part. Vegetable garden soil + slag =3 parts +1 part. Peat + slag + ceramsite =2 parts +2 parts +1 part. Sawdust + vermiculite + medium coarse river sand =2 parts +2 parts +1 part. After finishing the pot, pour water into it once, and put it in a shade environment for maintenance for a week. When transplanting the seedlings, dig the planting holes first and sprinkle a layer of organic fertilizer at the bottom of the planting holes as base fertilizer (base fertilizer) with a thickness of about 4 ~ 6cm. Then cover with a layer of soil and add the seedlings to separate the fertilizer from the roots and avoid burning roots. After placing the seedlings, backfill the soil to cover the root system, trample the soil with your feet and water it through once. Two times of coring is usually done before flowering to encourage the germination of more flowering branches: one to two weeks after the upper basin, or when the plant is 6 to 10 cm tall and has more than six leaves, remove the top tip and retain 3 to 4 leaves below to promote branching. Three to five weeks after the first coring, or when the lateral branch was 6 to 8 cm long, the second coring was carried out, that is, the top tip of the lateral branch was removed, and the 4 leaves under the lateral branch were retained. After two pluckings, the plant type will be more ideal and the number of flowers will be more.
Cut about 10cm shoots, remove the base of the two leaves, soak in 250 times of sagittate rooting nutrient solution for about 30 minutes, insert the perlite and vermiculite mixed cuttage pool for full light spray, and form a good root system in about 20 days. It should be noted that cutting is not easy to survive in high temperature and humidity. Through comparison, it was found that cuttage growth was not as good as seed sowing, with small canopy diameter and shorter plants.