Zinnia webinar 1: Successful Germination

Zinnia (Zinnia elegans & Zinnia marylandica) Part I Successful germination

Syngenta Flowers APAC Technical Webinar for Tropical Regions 09-18-2024 2 p.m.

Inka Orange 70041091

Zinnia assortment overview

Series (species) Zydeco (Zinnia marylandica) Short Stuff (F1 Zinnia elegans) Magellan (F1 Zinnia elegans) Swizzle (F1 Zinnia elegans) Uproar (F1 Zinnia elegans) Zowie! (F1 Zinnia elegans) Juliette (Zinnia elegans)

Genetic Containers Width, cm Height, cm Habit Syngenta Pots: 13—20 35—50 30—35 mounding

Application

Specific features Largest flower in marylandica genetic

Patio pots / gardens / landscape Patio pots / gardens Patio pots / gardens / landscape Patio pots / gardens / landscape

Syngenta Packs / Pots: 9—11 Syngenta Packs / Pots: 9—13

25—30 20—25 upright

Dwarf

Genetically semi- compact Outstanding color patterns

25—30 25—35 upright

Syngenta Pots: 11—13 25—30 25—35 upright

Syngenta Pots: 13—15 60—65 60—70 upright Cut Flower / landscape Semi-tall variety

Syngenta Pots: 13—15 60—65 60—70 upright Cut Flower / landscape Semi-tall variety

Floranova Packs / Pots: 9—10.5 cm

25—30 25—30 upright Landscape on big areas Efficient landscaper

Page 96 – 2024/25 Catalog Syngenta Flowers

Page 61 – 2024/25 Catalog

Floranova

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Zinnia portfolio

Short Stuff (F1 Zinnia elegans)

Magellan (F1 Zinnia elegans)

Swizzle (F1 Zinnia elegans)

Zydeco (Zinnia marylandica)

Juliette (Zinnia elegans) Landscape

Pots / Patio pots

Patio pots / Landscape

Patio pots

Landscape / Pots

7 colors & 1 mix

8 colors & 1 mix

2 colors

4 colors & 1 mix

7 colors & 1 mix

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Zinnia as a cut flowers

Uproar (F1 Zinnia elegans)

Zowie! (F1 Zinnia elegans)

Cut flowers / Landscape

Cut flowers / Flower fields

Really double flowers

Unique color

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Opportunity with Zinnias from Syngenta

Magellan

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5 components of success with Zinnia

Viruses Hygiene!

Fungicide rotation!

pH control.

Timing. Fast crop!

Stretching control.

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Why Hygiene again?

Viruses Hygiene!

Zinnia leaf curl virus!

Let’s make your choice

India (Maharashtra State) 2024

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Hygiene. Sources of infection!

Water

Ready plants & weeds

Old trays / material

Plant residuals

People

Substrate

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Create a barrier for viruses!

Viruses Hygiene!

Use the net.

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Create a barrier for viruses!

Viruses Hygiene!

Trap virus vectors: • Aphids, • Thrips, • Whiteflies.

Sticky trap

UV trap

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Create a barrier for viruses! Avoid transit as much as it possible. Human is main vector for many plant diseases!!!

Viruses Hygiene!

Caisson

No transit!

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Create a barrier for viruses!

Viruses Hygiene!

Not combine seedlings & ready plants

Young plants only!

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Care of work scheduling #1!

Viruses Hygiene!

Young plants.

Ready plants.

Finish

Working with young plants

Continue in afternoon

9:00 am

Finish

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Care of work scheduling #2!

Viruses Hygiene!

Young plants.

Ready plants.

Continue in afternoon

9:00 am

Working with ready plants

9:00 am

Finish

Continue in afternoon

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Quarantine!

Viruses Hygiene!

All good practices:

One entrance

Net on the side walls

Caisson

Antiseptic mat

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Precautions. Wash seedlings area well!

Hygiene

Let's start with clean area:

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Disinfection library

Hygiene

List of commercially available chemicals.

Features and surface reactions

Chemical class*

Common Active Ingredients

Sample Trade Names*

Precautions Bactericidal Virucidal Fungicidal Sporicidal

• Slow acting • Affected by pH

• Best at high temps • Corrosive to metals • Severe skin burns; mucous membrane irritation • Environmental hazard • Slow acting • Affected by pH and temperature • Irritation of skin/ mucous membrane • Only use in well ventilated areas • Fast acting • Affected by pH • Frequent application • Inactivated by UV radiation • Corrodes metals, rubber, fabrics, • Mucous membrane irritation • Stable in storage • Affected by pH • Requires frequent application • Corrosive • Stains clothes and treated surfaces • Pungent odor • Noncorrosive • Fast acting • May damage some metals (e.g., lead, copper, brass, zinc) • Powdered form may cause mucous membrane irritation • Low toxicity at lower concentrations • Environmentally friendly • Can leave residual film on surfaces • Can damage rubber, plastic; non-corrosive • Stable in storage • Irritation to skin and eyes

+

+

+

+

trisodium phosphate (TSP) 10 % solution

Alkalis

Very caustic

+

+/-

+

+

formaldehyde, glutaraldehyde, ortho-phthalaldehyde

Aldehydes

Synergize®

Carcinogenic Toxic gas released if mixed with strong acids or ammonia

+

+

+

+

sodium hypochlorite (bleach), calcium hypochlorite, chlorine dioxide

Halogens: Chlorine

Clorox®, Wysiwash®

+

+

+

+/-

Halogens: Iodine

povidone-iodine

hydrogen peroxide/ accelerated HP, peracetic acid, potassium peroxymonosulfate ortho-phenylphenol, orthobenzylpara-chlorophenol

Rescue®, Oxy-Sept 333®, Virkon-S®, ZeroTol®, OxiDate®, SaniDate® One-Stroke Environ®, Pheno- Tek II®, Tek-Trol®, Lysol® Roccal-D®, DiQuat®, D-256®, Physan 20®, Green Shield®, Klean GrowTM

+

+

+/-

+

Proxygene Compounds

+

+

+

-

May be toxic to animals

Phenols

• Stable in storage • Best at neutral or alkaline pH • Effective at high temps

+

+

+

+

Quaternary Ammonium Compounds

benzalkonium chloride, alkyldimethyl ammonium chloride

• High concentrations corrosive to metals • Irritation to skin, eyes, and respiratory tract

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Hygiene. Mind a gap! • No matter what kind of method you will use trays bottom shouldn’t touch greenhouse floor.

Hygiene

Small gap…

…or big one

Doesn’t matter it should be

Ground should be covered!

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pH control

pH control.

• Porous substrate (Up to 20―30% of perlite). • Rinse cocopeat well.

• leavening agent: perlite > sand > zeolite > vermiculite. • Sift the substrate to obtain a uniform particle size 0―5 mm • pH range: 5.5―5.8(5.9) • SME: 0.5 mS/cm • Saturate substrate up to level 5 right before sowing. Level 5 SATURATED Level 4 WET Level 3 MEDIUM Level 2 MEDIUM DRY Level 1 DRY 2 3 4 5 6 7 8

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How to add acid?

pH control.

1

Start with higher pH level

6

2 3 4 5

7 8

Add a bit more (1 ml) acid

Lower

30%

7

6

If pH 5.5?

Yes

2

3

4

5

Fill tank with water 100 - 200 l

Check pH (7.3)

Add acid < 10 ml

Add 05

Higher

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Add a bit more water

Why pH is critical?

pH control.

pH number is logarithm! Real hydrogen cations concentrations are: pH 1 = 0,1 mol/l pH 2 = 0,01 mol/l pH 3 = 0,001 mol/l pH 4 = 0,0001 mol/l pH 5 = 0,00001 mol/l pH 6 = 0,000001 mol/l pH 7 = 0,0000001 mol/l pH 8 = 0,00000001 mol/l …

100 times

Difference between closest pH values not 1 time is 10 times!

10 times

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Sowing / germination stage

• Suggested tray size – 128 or 288 cell • Seed – place 1 seed per cell • Do I need to cover the seed?  yes  Light is not required • Germination chamber – NO! • Soil Temp: 23―24 0 C 18 19 20 21 22 23 24 25 26

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Sowing / germination stage

Stretching control.

• Germination chamber – NO!

Timing. Fast crop!

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Catharanthus disease management

Fungicide rotation!

Most common Catharanthus seedling diseases.

Disease

Active ingredients (rate in chemical)

Active Ingredient concentration in solution g/l* 3.2 g/l mancozeb + 0.2 g/l mefenoxam 0.4 g/l azoxystrobin + 0.16 g/l cyproconazole

Use as prophylactic

+

mancozeb (640 g/kg) + mefenoxam (metalaxyl-M) (40 g/kg)

azoxystrobin (200 g/l) + cyproconazole (80 g/l)

Alternaria

+

fludioxonil (25 g/l)

0.05 g/l 0.04 g/l 0.15 g/l

difenoconazole (25 g/l)

azoxystrobin (50%)

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) azoxystrobin (50%) fludioxonil (125 g/l)

1.8 g/l

0.15 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%) polyoxin D zinc salt (11.3%)

0.75–1,25 g/l

0.07 g/l

* Rotate active ingredients (AI). Don’t apply the same AI more than 3 times at row. Check phytotoxicity!

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Q&A session.

• Thank you for your time. • For more information, please contact your Key Account Manager.

Amjad.Iqbal@syngenta.com Key Account Manager SEAP (South East Asia & Pakistan) (Pakistan, Thailand, Vietnam, Indonesia, Malaysia, Singapore, Phillipines, Cambodja, etc

Ivan.Pozdnyakov@syngenta.com Technical Sales Specialist SA/SEAP

Gautam.Sangle@syngenta.com Key Account Manager SA (South Asia) (India, Nepal, Bangladesh)

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