Sowing and propagation of African pansy
Sowing time: spring or autumn can be, greenhouse cultivation in September to October, autumn sowing will have a higher germination rate p>
Soil: the seed of African pansy is very small, and the pot soil for sowing should be fine. After sowing, it doesn't need to be covered with soil, just flatten it p>
Temperature: the suitable temperature for the growth of African pansy is about 18 ~ 26 ℃, and it germinates about 15 ~ 20 days after sowing p>
Humidity: the seedling stage should not be too dry or too wet, and it is better to often keep the basin soil moist p>
Cutting propagation of African pansy: mainly by leaf cutting h2>
1.after flowering, select healthy leaves, cut the petiole 2 cm long, place it for a few minutes, fully dry the incision and insert it into the sand bed p>
2.take root 3 weeks after transplanting. Seedlings will be produced in 2 ~ 3 months and moved into a 6cm pot p>
3.in the process of cutting, the liquid dissolved with vitamin B can be used for watering to promote rooting p>
PS: it usually takes 4-6 months from cutting to flowering, but if it is tiller cutting, the effect is also very good and the time is not long p>
When cutting, African pansy is usually cut in June or July. It will bloom from October to November. When cutting in September or October, it will bloom from March to April the next year p>
Tissue culture and propagation of African pansy
1.take the healthy leaves of African pansy and add 1 mg / L 6-benzylaminoadenine and 1 mg / L naphthylacetic acid to MS medium p>
2.adventitious buds appear 4 weeks after inoculation, and rooting plantlets can be transplanted after 3 months p>
3.the survival rate is higher when transplanted into the matrix of half rotten leaf soil and half peat moss soil p>
Cultivation points of African pansy:
1. Pot transfer: when the seedlings have 3-4 leaves, they are transplanted in 6cm pots, and when they have 7-8 leaves, they are settled in 10cm pots p>
2. Watering: the temperature is low in spring, autumn and winter, so it is necessary to water less, and more in hot and dry summer p>
3. Light: African pansy is a semi negative plant. 8 hours of light a day is more appropriate. Don't expose it to the sun in summer p>
4. Fertilization: fertilize once every half month in the growth period, and increase phosphorus and potassium fertilizer twice in the flowering period p>