Cyclamen Persicum Grower Fact

Cyclamen persicum F1 hybrids

Technical information
Seed count
95 - 11O gram (2,7O0 - 3,1OO/oz)
Seed count varies by colour and seed lot.

G
ermination
Media: pH 6.3-6.5 Prevent pH to drop under 6.2
Temperature 18-2O"C (64-68 F). EC: O.5-0.75
Ammonium based fertilizers are not recommended. Use calcium based fertilizers instead

Stage 1:
20-25 days
Cermination starts in darknessat high humidity. Light will inhibit germination. Covering the stacked trays with thick black plastic will provide darkness and high humidity
Temperatures over 20'C (58 F) will cause erratic germination and
temperatures over 25"C (77 F) will inhibit germination.
Seeds should be covered lightly with coarse vermiculite to maintain
humidity level at the seed.
Media shou Id be satu rated to provide enough water for imbibition. Radicle emergence will be visible in 14 days.
After 3 weeks a corm has formed, the first roots are visible and the hypocotyls is stretching, the germination is completed and trays should be placed in light to avoid stretching of the seedlings.
Make sure to keep up humidity to 95%, placing under a mist system is advised.

Stage
2
Maintain humidity to prevent the seedcoat from drying and sticking to the first leaf . When the firsi leaf cannot f ully develop it will set the plants back at least 3 weeks.
Media should be moist, do not stress the seedlings by withholding water. Shade when light levels reach over 16,000 lux (1600 foot candles). Prevent direct sunlight on the emerging seedlings. When the first leaf is fully developed stage 2 has ended

Stage
3
When sown in a small cell tray this would be the time to transplant into a bigger cell. Make sure plants are well watered before transplanting to avoid root problems. Use a well draining media. Keep media moist to prevent plants from wilting. Any stress (drought, fertilizer) will result in non-uniform growth. Temperature of 20-22'C (68-72F) will promote fast development the first leaves. After the first leaves have developed temperature can be lowered to 18-20'C (64-68 F), Use a balanced fertilizer with a N:K ratio ol 1:2,5 to promote sturdy growth. Media EC 1 - 1.25. Shade when light levels reach over 27,500 lux (2750 foot candles)

Stage
4
When plants cover the cell transplant to the final pot. Make sure plants are well watered before transplanting to avoid root damage. It is advised to keep the medium temperature at 20oC (68 F) for two weeks to promote strong root development. After 2 weeks temperature can be dropped according to scheduling.

Growing
on
Media: a well-drained, porous media is best to prevent over watering.
pH 6,2 - 6.8
EC. 1.O - 1.25
Humidity: Keep humidity down by proper ventilation during the total growing period. Humidity should not exceed 80% to avoid outbreak of Botrytis.

Temperature
During summer maintain temperatures as low as possible to avoid excessive leaf growth. During the growing gradually lower temperatures to 13 - 16"C (55-61 F) depending on crop schedule. Average day temperatu re over 25"C (77 F) will inhibit flower induction and promote yellowing of the foliage.

Moisture
Allow media to dry between watering, do not allow plants to wilt severely, this will result in yellow leaves and serious set back in growth. Before shipping the flowering product make sure plants are well watered to avoid wilting at the selling point but make sure the foliage is dry to prevent Botrytis.

Humidity
Optimum > 60 and < 80. High humidity will make the plants susceptible to Botrytis and low humidity will promote leaf yellowing

Light
Cyclamen will not initiate flowers when lightlevels drop below 2500 lux (25O loot candles). Under low light conditions supplementary lights are necessary.

Shading
Well established plants can be shaded when light levels exceed 425OO lux (4250 foot candles).

Pests
Aphids, Thrips, whitefly, leafminers, Cyclamen mite
Diseases: Botrytis, Fusarium, Erwinia