Helianthus annuus
Deep dive into technology
Syngenta Flowers APAC Technical Webinar for Tropical Regions 06-08-2025 2 p.m.
Inka Orange 70041091
Helianthus portfolio #2.
Variety
Sunfinity Yellow Dark Center
Sunfinity Yellow/Red Bicolor
Specific features
Large petal flowers
Double colored flowers
Page 54 – 2024/25 Catalog
Syngenta
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Benefits of Sunfinity #1.
Sunfinity is the efficient landscaping crop!
• Sunfinity able to perform much longer than other Sunflowers. Longevity in the landscape can be 2,5 or even 3 month . You not need to replace the plants too often as with the common sunflower varieties. • With the Sunfinity, you need to apply less plants per square meter. • Sunfinity is more resistant against the powdery mildew.
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Benefits of Sunfinity #2.
Sunfinity is the impressive pot crop!
• Sunfinity is the best solution to create high value pot product.
• Sunfinity it is the ultimate chance to enlarge your pot plant portfolio.
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Benefits of Sunfinity #2.
Sunfinity is the cut flower as well!
• Sunfinity able to bring more one flower per stem.
• Vase life of Sunfinity reach up 2 weeks.
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5 elements of success with Gazania.
Avoid saturation!
Long day crop.
pH 5.5 — 5.9.
Feed plants well.
Remove the tips.
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https://www.youtube.com/@SyngentaFlowersAPAC/videos
Start to take care before sowing.
• Keep the seeds in optimal conditions.
• Never put the seeds on the hot places.
• Avoid direct sun and sunspots!
• Store the seeds in cooling storage.
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Temperature.
✓ 5―10 °C.
•
Relative air humidity.
✓ 22―30%.
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Sowing / germination stage.
• Suggested tray size – 128, 72, 50 cell
•
Seed – place 1 seed per cell
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Do I need to cover the seed?
✓ Yes.
✓ But only with a thin layer.
✓ Light not required for germination.
• Germination chamber – optional.
Avoid saturation!
• Soil Temp: 20―22 0 C
18 19 20 21 22 23 24 25 26
Only thin layer of cover
•
Germination time 5―7 days
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Substrate for sowing.
• Suitable substrate components:
peat > cocopeat > wood fiber peat > composts > natural soils > rice husk With particle size 0 ― 5 mm.
• Add 20 ―25 % leavening agent: perlite > cocopeat grains > sand > zeolite
• Substrate mixture examples :
✓
75 % cocopeat + 25 % perlite,
✓ 55 % cocopeat + 20 % peat + 25 % perlite,
✓ 55 % cocopeat + 25 % natural soil + 20 % perlite.
✓ 50 % cocopeat + 25 % natural soil + 25 % cocopeat grains.
Even natural components are applicable
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Substrate for sowing.
• Avoid saturation moisture level!
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
•
Substrate ES : 0.5―0,75
Avoid saturation!
•
Substrate pH: 5.5―5.8
But don’t let the seedlings dry out.
5
2 3 4
6 7 8
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General condition for the seedlings.
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Temperature - Day:
18 19 20 21 22 23 24 25 26
- Night:
18 19 20 21 22 23 24 25 26
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Light intensity : 35 ―45 KLux
Partial Sun/Shade
Light Shade
Moderate Shade
Heavy Shade
Full Sun
• Keep substrate moisture between the levels 2 and 3
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
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Young plants fertigation tips.
Fed your Sunfinity well.
• Provide 75―100 ppm of nitrogen (N). • You can provide proper amount of N by 0.5―0.7 g/l of 17 -5-17 or 15-5-15 or similar.
Don’t apply clean water!
• Optimal EC in the water 1.5 (up to 1.7 or even 2.0 in sunny condition and hot)
• Optimal EC in the substrate (SME*): 0.5―0.75 mS/cm.
Feed plants well.
* Saturated Media Extract
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When to transplant?
Two pares of true leaves is the best optimal stage*.
* Plug time 4―5 weeks
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How to transplant?
Keep hypocotyl deepper.
Substrate level
Substrate level
Substrate level
Substrate level
This level is fine
But this is better
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Choose your production type
Pot plant.
Finish pots (2,5 till 12 L)
72 plugs
Landscape application.
Transplanting into the outdoor (50 × 50 or 70 × 70 cm)
72 plugs
10―15 cm pots
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How many plants?
Pot size
Series
2.5 – 3 l
6 – 10 l
12 l
Sunfinity Yellow Dark Center & Sunfinity Yellow/Red Bicolor
1 ppp
1―2 ppp
2―3 ppp
Distance in the landscape: 50 × 50 or 70 × 70 or 80 × 80
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General condition for finishing.
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Temperature - Day:
15 16 17 18 19 20 21 22 23 24 25 26
- Night:
15 16 17 18 19 20 21 22 23 24 25 26
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Light intensity : 35 ―50 KLux
Partial Sun/Shade
Light Shade
Moderate Shade
Heavy Shade
Full Sun
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
Keep plants drier.
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Sunfinity fertigation tips #1.
Sunfinity loves to eat.
• Provide 150―200 ppm of nitrogen (N). • You can provide proper amount of N by 1 .0―1.5 (2.0) g/l of NPK.
NPK: 18-5-18, 15-3-15 or similar.
• Optimal EC in the water 2. 0―3.0 (up to 4.0!) mS/cm. • Optimal EC in the substrate (SME*): 1.2―1.75 mS/cm. • Substrate and water pH: 5.5―5.9 (6.0).
Feed plants well.
Plant doesn’t show the flower bud yet.
5
2 3 4
6 7 8
* Saturated Media Extract.
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Sunfinity fertigation tips #2.
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How to apply fertilizers?
Feed plants well.
Common tank with dissolved fertilizers.
Fertigation mixing unit.
Dosatron unit.
• No matter how you fertilize, plants need to be fed.
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Sunfinity fertigation tips #3.
Add bit more fertilizers
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ES & pH in the water
EC Lower
Taste soupe before you offer to your guest…
2
4
1
3
5
Is EC & pH is Ok?
Yes
Add required quantity of fertilizers
Check EC & pH and adjust pH
Fill the tank up to target volume
Fill the tank with ½ volume
EC Higher
Add bit more water
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Sunfinity fertigation tips #4.
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ES & pH in the substrate!
•
Check before it too late!
• Plant cannot tell you if it needs something, but pH and EC can reveal it. • Check plant health (EC & pH) before plant needs reanimation.
•
Substarte pH: 5.5 – 5.9
One time a week.
• Substarte EC: SME* EC: 1.2 – 1.75 mS/cm,
* Saturated Media Extraction (SME) ** PourThru method.
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Time to pinch.
• Keep 4 nodes and remove the axillary buds of cotyledons.
Where to pinch
4 th
3 rd
2 nd
Remove the tips.
1 st
Cotyledon node
Needs to be removed (axillary buds in the cotyledon node)
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Sunfinity fertigation tips #2.
After the flower buds appear.
• The same recommendations but NPK rate must be changed.
NPK: 18 -5- 40 , 15 -3- 35 , 17 -5- 30 or similar.
N/K rate must be about 1:1.5―1:2 .
✓ Never apply clean water!!! Good Fertigation Practice reminder .
Feed plants well.
✓ Provide recommended EC (2.0―3.5 (4.0) mS/cm) and pH (5.5―6.0) with every watering.
✓ Don’t forget to apply Ca+Mg every 2 weeks.
Plant showed the flower bud already.
✓ Don’t apply too much phosphorus!
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Long daylight + low DLI
Long day light + high DLI
Day length condition.
Short day + low DLI
Short day + High DLI
Sunfinity requires londay condition together with good light intensity.
✓ 3 weeks after potting
✓ 5 weeks after potting
✓ 6 weeks after potting
Long day crop.
✓ 7 weeks after potting
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Sunfinity vegetation scheduling.
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For pot plant production.
Week
1
2
3
4
5
6
7
8
9
10
11
12
13
Stage:
seedlings development
tranplanting
plants development
Blooming
germination (3 — 5 days)
Chamber:
Optional
Temperature day, 0 C Temperature night, 0 C Substrate humidity, 1 — 5
20 — 22(24) 20 — 22(24)
18 — 20(23) 18 — 20(23)
21 — 24(27) 18 — 20(22)
4
3 — 4
2 — 4
Tray/pot type → Spacing, cm
50 or 72-cells
pot: 25 — 35
50 or 72-cells (no cover)
Substrate pH, 1 — 14
5.5 — 5.8
5.5 — 5.9
2 — 2.3
2.5
2
2
2
2
1.7
1.7
1.5
1
Water EC, mS/cm
Ca+Mg application (↑)
0.5
Substrate EC (SME), mSm/cm
0.5 — 0.7
1.0 — 1.5 75 — 100
1.2 — 1.75 150 — 200
Fertifation (N), ppm
—
NPK rate, & Ca+Mg application (↑)
—
15 – 3 – 15 (13 – 2 – 13)
10 – 5 – 17, 10 – 3 – 15, 15 – 3 – 18
Light intensity, KLk
35 — 45
35 — 60
Not required for germ.
Day length, hours
—
13 — 14 hours
13 — 14 hours
Remove the tips above the 4th node.*
Pinching
—
—
Bonzi® sprench at 2 – 3 ppm (next day after sowing)
PGRs
Bonzi at 2 – 3 ppm
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Most common Helianthus diseases.
Disease
Active ingredients (rate in chemical)
Active Ingredient concentration in solution*
Use as prophylactic
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
+
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
Penconazole (100 g/l)
0.04 g/l
Powdery mildew
azoxystrobin (250 g/l)
0,25 g/l
iprodione (50%)
1.25 g/l
azoxystrobin (50%)
0.15 g/l
fludioxonil (125 g/l)
0.05 – 0.07 g/l
Rhizoctonia
chlorothalonil (72%) + thiophanate-methyl (18%)
0.75 – 1,25 g/l chlorothalonil or/and 0.18 – 0,27 g/l
pentachloronitrobenzene (75%)
0.75 – 1,25 g/l
polyoxin D zinc salt (11.3%)
0.07 g/l
** Concentration of active ingredient in the commercial chemical.
* Rotate active ingredients (AI). Don’t apply the same AI more than 3 times at row. Don’t forget to check phytotoxicity!
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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
Michael.van_Baekel@s yngenta.com
Gautam.Sangle@syngenta. com Key Account Manager SA (South Asia) (India, Nepal, Bangladesh)
Mallikarjun.Mangrule @syngenta.com Head of APAC
Michael van Baekel Head of Marketing APAC
https://www.syngentaflowers.com/
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