Ranunculus asiaticus
deep dive into technology
Syngenta Flowers APAC Technical Webinar for Tropical Regions 12-03-2025 3 p.m.
Inka Orange 70041091
Ranunculus assortment overview.
Series
Pot size Width Height
Application
Specific features
Magic
9–11 cm 15–20 cm 15–20 cm Small Pots, Pots
Genetically compact
Maché 11–14 cm 25–30 cm 25–30 cm Pots, Patio Pots, Landscape Vigorouse
Page 139 – 2024/25 Catalog Syngenta Flowers
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Ranunculus portfolio.
Magic
Maché
Small pots, Pots
Pots, Patio Pots
11 & 1 mix
12 & 3 mix
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One of the best pot crop.
Ranunculus Magic and Mache – is the perfect solution for the gift.
Bouquet in a pot!
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5 elements of success with Ranunculus.
Cold germination
Thrips control
Short day length
Crown crop
Stretching control
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https://www.youtube.com/@SyngentaFlowersAPAC/videos
Sowing / germination stage #1.
• Suggested tray size – 288 cell.
• Seed – place 1 seed per cell. • Do I need to cover the seed?
✓ Yes
✓ Light is NOT required for germination.
• Soil Temp: 10―13 0 C.
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Cold germination
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
• Normal germination rate: Mache – 80%, Magic – 75%.
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Sowing / germination stage #2.
• Soil Temp: 10―13 0 C.
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Cold germination
Germ. chamber
• Germination chamber is the best solution for the warm regions.
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Perfect sowing time.
• Use the natural low temperatures.
• 3.5 months is enough time to get the healthy young plants.
• Temperature condition in Chandigarh.
- Seedlings production timeslot.
Cold germination
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Substrate.
• Avoid incompletely decayed organic material & composts.
Professional peat moss substrate
Cocopeat is Ok
Is Ok
Soil-based is Ok
• Substarte and water pH: 5.5―5.9
5
2 3 4
6 7 8
• Avoid alkaline substrates (lime based). • Provide for Ranunculus high aerated substrate 30―40 %.
• Substrate EC (SME): 0.5―0.7
Perlite 30%
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Get high quality seedlings of Ranunculus
• Temperature.
• Day:
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• Night:
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• Avoid drying out of Ranunculus seedlings.
• Saturate moisture level:
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
Stretching control
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Light and day length conditions.
Avoid long day condition on the seedling stage.
• Day length must be under 10 hours (short day condition).
Day 10 hours
Until plant will develop 12 leaves
Night 14 hours
• Light intensity: 20—25 KLk (400—500 micro mols)
Short day length.
Partial Sun/Shade
Light Shade
Moderate Shade
Heavy Shade
Full Sun
• Provide the good shaded and ventilated area. Double shading is beneficial.
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Ranunculus fertigation tips.
Avoid too high EC!
• Recommended EC on the seedling stage:
✓ In the substrate (SME*): 0.5—0.75 mS/cm.
✓ In the water: 0.7—1.5 mS/cm
✓ Provide only 50―75 ppm of nitrogen (N)
✓ You can provide proper amount of N by 0.5―1.5 g/l of NPK with 17-5-17 or 15-3-15 or similar. ✓ Watering with rinsing.
✓ Avoid too much calcium and phosphorus
* SME - Saturated media extract!
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Transplanting #1.
When and where to transplant?
What is the proper pot size?
Pot size
6—7 true leaves is the perfect time
Series
0.5 l
1.0 l
1.25–2.5 l
Magic
1 ppp
1 ppp
2–3 ppp
• Seedlings development normally takes 11—12 weeks.
Maché
—
1 ppp
1–2 ppp
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Transplanting #2.
How to transplant?
Crown crop.
Slightly higher.
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After transplanting #1.
General conditions.
• Day:
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Suboptimal range
• Night:
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• Light intensity: 40—60 KLk (800—1200 micro mols)
• Substarte and water pH: 5.5―5.9.
5
2 3 4
6 7 8
• Saturate moisture level:
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
Stretching control.
Well developed compact plants.
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After transplanting #2.
How to manage plant habit under the warm condition?
• Day:
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• Night:
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• The answer is PGR.
• Spray of B-Nine WSG at 2,500–5,000 ppm.
• Keep short day
condition up to 12 leaves had appear.
Day 10 hours
Stretching control.
Night 14 hours
Poor developed plants under the long day.
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Ranunculus fertigation tips.
General fertigation tips.
• Provide 125―175 ppm of nitrogen (N). • You can provide proper amount of N by 0.85―1.5 g/l of NPK with rate 17-5-17 or 15-5-15 similar before flower bud appears.
• EC in the water 1.7―2.5 Optimal EC in the substrate (SME*): 1.5―2.1 mS/cm. • Use watering with rinsing/draining .
Plants watered with the fertilizers by dripping system.
* SME - Saturated Media Extract
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Prepare Ranunculus for blooming.
Time to change daylength.
Day 10 hours
Night 10 hours
Extend the daylength
Night 14 hours
Day 14 hours
Plants are still developing 12 leaves
Flower buds developing
Stretching control.
Transplanted young plants
Plant with more than 12 leaves
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Prepare Ranunculus for blooming.
After flower buds appearing.
• Provide 125―175 ppm of nitrogen (N). • You can provide proper amount of N by 0.5―1.5 g/l • But change N/K rate : 17-5-30 or 15-5-30.
• EC in the water 1.7―2.5 Optimal EC in the substrate (SME*): 1.5―2.1 mS/cm.
Low fertilizers
Ready well-developed plants of Mache
* SME - Saturated Media Extract
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Thrips management #1.
Protection is not only the chemicals.
Elements of protection…
• Hygiene & quarantine. • Scouting. • Growing conditions (T, RH, Water, Light, Fertigation). • Clean area,
• Chemical protection. • Physical protection.
Thrips control.
Open ground is the best condition for thrips propagation
Thrips is the vector for viruses (Tospovirus)!
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* Rotate active ingredients (AI). Don’t apply the same AI more than 3 times at row. Check phytotoxicity!
Thrips management #2.
Physical protection.
• Traps:
UV traps and sticky traps will make your life easier.
✓
Sticky traps,
✓
UV Traps,
✓
Freamon traps.
• Barriers:
✓
Anti insects net,
✓
Ground cover,
Anti insects net on the greenhouse wall.
Thrips.
✓
Distance (gap),
✓
Physical parameters.
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* Rotate active ingredients (AI). Don’t apply the same AI more than 3 times at row. Check phytotoxicity!
Thrips. Chemical control*.
Active Ingredient**
Work specific***
Acephate
contact
Azadirachtin
translaminar activity
Dinotefuran
translaminar residual activity translaminar residual activity
Imidacloprid
Spirotetramat
translaminar activity
Thiamethoxam
systemic
* Read the label very carefully. ** Rotate active ingredients (AI). Don’t apply the same AI more than 3 times at row. *** Check phytotoxicity!
Thrips.
Provide quality treatment from below as well.
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Internal
Pest management.
Protect your plants from Sciaridae & fungus gnats!
• Irrigation management: - don’t overwater, - apply shading (to reduce watering).
• Chemical protection: - Carbaryl (1-naphthyl N-methylcarbamate) 43% - Malathion • Biological methods: - bacterial ( Bacillus thuringiensis sub sp. israelensis ). - nemathodes ( Steinernema feltiae )
• Traps:
Traps or damage?
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Ranunculus disease management.
Most common Ranunculus diseases.
Disease
Active ingredients (rate in chemical)
Active Ingredient concentration in solution g/l*
Use as prophylactic
iprodione (50%)
1.25 g/l
tetrachloroisophthalonitrile (82.5%)
0.83–1.2 g/l
Botrytis
fenhexamid (50%)
0.5–0,75 g/l
pentachloronitrobenzene (75%)
0.75–1,25 g/l
azoxystrobin (50%)
0.15 g/l
Pythium
pyraclostrobin (12.8%) + boscalid (25.2%)
0.03–0.07 g/l pyraclostrobin or/and 0.05–0.15 g/l boscalid
propamocarb (600 g/l)
1.8 g/l
+
* Rotate active ingredients (AI). Don’t apply the same AI more than 3 times at row. Check phytotoxicity!
pH below 5.8 can inhibit fungus spores' germination in the substrate.
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Example of the scheduling.
Week Stage:
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seedlings development
tranplanting
plants development
Blooming
germination
Chamber:
required
Temperature day, 0 C
10—13(15)
11—12(17)
11—12(17)
Temperature night, 0 C Substrate humidity, 1—5 Tray/pot type → Spacing, cm
10—13(15)
11—12(15)
10—11(13)
5
3—4
2—4
288-cells 5.5—5.9
pots 10—13
Substrate pH, 1—14
5.5—5.9
1.7
1.7
1.7
1.3—1.5
1.5
1.3—1.5
1.5
1
0.8
Water EC, mS/cm
Ca+Mg application (↑)
0.5
0.5
Substrate EC (SME), mSm/cm
0.5
0.5—0.75
1.5—2.1 125—175
Fertifation (N), ppm
—
50—75
NPK rate, & Ca+Mg application (↑)
—
15–3–15
10–5–17, 15-10-35
Light intensity, KLk
25—30
full sun, semi-shade
not required
not longer than 10 hours untill 10—12 leaves appears
Day length, hours
— — —
not longer than 10 hours
12—14 hours
pinching
not need not need
not need not need
PGRs
Apply calcium nitrate only every two weeks.
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Q&A session.
• Thank you for your time. • For more information, please contact your Key Account Manager.
Ivan.Pozdnyakov@ syngenta.com Technical Sales Specialist SA/SEAP
Le_Minh_Triet.Nguyen @syngenta.com Technical Sales manager (Vietnam)
Gautam.Sangle@ syngenta.com Key Account Manager SA (South Asia) (India, Nepal, Bangladesh)
Mallikarjun.Mangrule @syngenta.com Head of APAC
https://www.syngentaflowers.com/
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