Verbena Technical tips for
successful production
Webinar, 07-30-2024
Verbena assortment
Obsession Twister (9 – 11 cm pot)
Obsession (9 – 11 cm pot)
Tuscany (9-11 cm pots)
Public
Verbena assortment
Obsession Cascade (hanging basket)
Obsession Cascade (10-12 cm pots)
Public
Opportunity with Verbena
Obsession for very intensive production in 4 and 6 cells trays
Obsession Cascade as a ground cover crop
Public
Catalog Reference
Habit
Variety
Compact
Upright
Spreading
High intensity production High intensity production
Obsession
Obsession Twister
Strong with Larger Flowers
Tuscany
Obsession Cascade
Hanging basket
Page 91 – 2024/25 Catalog
Public
Sowing Preparation. Let’s start with clear area...
... and continue with clean condition.
• Separate area/ greenhouse are essential • Try to avoid transit of materials and people through the rooting area • Make interruption of rooting process in greenhouse for total cleaning once or twice a year • Clean yearly all greenhouse: table surface (not only table surfaces), constructions, floors, watering system before starting • Before total cleaning greenhouse should be free from plants and weeds. • Disinfection agents (H 2 O 2 , Na 3 PO 4 (Trisodium Phosphate), Virkon®S • Change all water filters (for water and air) yearly. • All materials (trays, plastic, vessels) should be new or cleaned for each new batch of cuttings.
• Start to work with cuttings with clean hands (wash your hands thoroughly with antiseptic soap or liquid before working) • Use disposable gloves to manipulate your plants • Clean instruments with antiseptic liquid before each variety (on the base of quaternary ammonia add local chemicals?) • Clean table surface with antiseptic liquid before each variety • Clean floor surface and remove all plant residuals every day after work • Refill disinfection math on a daily base • Control weeds growth in the greenhouse…
Public
Start to care from seeds
Be sure your seeds came from reliable source. Always check the integrity of the sachets and the presence of inscriptions on them. Don’t forget to check official package with Customer Service of breeder. Inform Customer Service immediately if you doubt in seeds quality or found damage of sachet. Seeds storage. Seeds should be stored in proper place with controlled temperature and humidity. Seeds sachet should be protected from direct sunlight, heating and high humidity. Proper temperature to store seeds is + 3–5 0C and relative humidity 40–60 %. If there is no special cooling storage seeds should be kept in safe or locker placed in area saved from overheating or direct sunlight. ! Keep open sachet only in fridge with temperature + 3–5 0C. The seeds drop their germination rate quickly while it stored in open sachet with temperatures above + 5 0C.
Public
5 components of success with Verbena
Substrate wet level on germ stage
Protection from thrips & powdery mildew
Plant compactness management
Good fertigation
pH alternation between stages
Public
Germination stage (first week)
• Suggested tray size – 228 cell • Seed – place 1/2 seed per cell • Do I need to cover the seed? Yes Verbena seed NO needs light to germinate If under low light conditions supplemental light can be beneficial • Soil Temp: 23―24 degrees C • pH range: 5.5―5.9 • SME: 0.5―0.75 mS/cm
Public
First component of success.
• The most critical for successful germination rate is substrate moisture level. • Moisture level: should be 3!
!!!
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
Public
How to recognize moisture level
Level 5
Level 4
Level 3
Level 2
Level 1
SATURATED
WET
MEDIUM
MEDIUM DRY
DRY
The substrate is completely saturated and appears shiny and black in color. Free moisture can be seen at the substrate surface and dripping from underneath cells. Trays may bend under the heavy weight of the water. In your hand, moisture drips from substrate without squeezing.
The substrate is at maximum water holding capacity and appears dark. It is not shiny, and no free moisture is visible at surfaces. The tray may still bend under the water weight. Lightly pressing down on the substrate will force water from underneath the cells. Squeezing the substrate will quickly release moisture from your hand. After squeezing, the substrate will retain its shape.
The substrate is drying due to plant uptake and evaporation. The substrate appears brown in color and is lighter in weight. Strongly squeezing or pressing the substrate only releases a few water droplets. After squeezing in your hand, the substrate begins to crack apart into chunks.
The substrate appears light brown to tan and has become light in weight Squeezing the substrate as hard as possible releases no water droplets. If you squeeze the substrate next to your ear you can hear sounds of moisture moving through pore spaces. After squeezing, the substrate is loose and falls apart in your hand.
Completely dried and tan to grey. No water is available, and the substrate is very light weight. Substrate may separate away from tray cell walls. Squeezing the substrate as hard as possible will not release any water droplets, and when squeezing next to your ear you cannot hear moisture moving through pore spaces. After squeezing, the substrate crumbles in your hand and resembles dust.
Public
Young plant stage. (2 nd – 6 th weeks)
Main parameters • Temperature. Day: 20―21 °C. Night: 20 ― 21 °C • Average daily temperature: 21 °C
• Day extension lighting: Beneficial to 14 hours. • Light intensity: 35― 45 KLk (700―900 micro mols) • Day length response: Facultative short day • Media EC: SME 0.5 to 0.75 mS/cm • Pinching: No • Plant growth regulators (PGRs): Usually not needed • Plug grow time: 5―6 weeks in a 128 -cell tray • Moisture level: Media should be allowed to dry between irrigations. Alternate between moisture level 2 and 4 . Level 5 SATURATED Level 4 WET Level 3 MEDIUM Level 2 MEDIUM DRY Level 1 DRY
Public
Second component of success. #1
Feed your seedlings well!
• Verbena requires quite high level of fertilizers 75―125 ppm of nitrogen (N) even on seedling stage. • Media EC: SME 0.5 to 0.75 mS/cm • Media pH: 5.5―5.9
2 3 4 5 6 7 8
How to convert ppm of N into mass of fertilizers? • The range of nitrogen recommended in the growing tips is 57―125 ppm. • Let’s start with 75 ppm. • 75 ppm means 75 mg should be added into 1 l of water. • There is available fertilizer with NPK rate like 15–5– 17 % on the farm. • NPK rate like 15–5– 17 contains 15 mg of nitrogen in 100 mg. • Thus, to get 75 mg of nitrogen we need to take: (75 x 100)/15 = 500 mg of fertilizer.
Public
Second component of success. #2
Feed your seedlings well! Another topics…
• Never apply clean water without fertilizers. • Do not apply fertilizers with high phosphorus (P) like 15–15–15 • EC in the water should be 1.7―2.3
Watering unit
Public
Why not clean water?
In nature rainwater contains EC closer to 0… … but in the reality plants never receive clean water. • Root absorbs the water only by tips with root hairs. • In nature, water passes through the soil volume and dissolves mineral elements before it reaches the root tips. • In production condition we have: • inert substrate, • All roots with root tips in the small volume of substrate.
In production all roots in the small volume. Water pathway 9 cm
In nature. Water pathway 30 cm
Public
Transplanting.
• Don’t be late with transplanting (week 6 or 7) • Check substrate quality (pH, EC) before you started to apply it. • Verbena is quite tolerant crop to substrate quality, but 25 or 30 % in the substrate mixture is desirable. • Pot size for different series (see in the table as well): - Obsession 9 ―11 cm, - Obsession Twister 9 ―11 cm, - Tuscany 9 ―11(12) cm, - Obsession Cascade 10 ―12 cm . • Be sure pots have enough drainage holes on the bottom.
Verbena can be transplanted directly into the finish container
Public
Third component of success.
• Increase pH of substrate up to 5.8―6.2 .
2 3 4 5 6 7 8
2 3 4 5 6 7 8
• Keep wet level of the substrate within the range 4―2. • Start to apply fertilizers rich in potassium (like 10–5–15 or 10–3– 17) since week 3 or 4
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
Public
Vegetation stage. Equipe your plant well
• Provide comfortable apartment to your plant • Greenhouse (plastic house) should be clean. • Cover open soil with plastic and keep it clean. Not give a chance to trips and weeds. • Provide your plants with light 40 ― 65 KLk but shade it when sun is too strong (with daily light integral: 14 ― 16 mols/day).
Moderate Shade
Heavy Shade
Partial Sun/Shade
Light Shade
Full Sun
• We recommend please pots with plants on the benches (tables) or provide distance between greenhouse floor and plants. • Table surface should provide good drainage. • Let you plants breath and eat easily. Be sure that greenhouse construction can be ventilated well.
• 6Н 2 О + 6СО 2 ――――→ С 6 Н 12 О 6 + 6О 2 СО 2 is a main food for plant to create organic and it is gas
Mind a gap (between plants and ground)!
Public
Fourth component of success.
Good watering and fertigation management for compactness.
EC change depends on watering number
• There are some tools to keep plant habit in good shape: Good fertigation. Provide your plants with 125―175 ppm of N Never apply clean water.
2 2 2
2 2 2
1.8 1.8 1.8 1.8
1.8 1.8
1.8 1.8 1.8
1.7 1.7 1.7 1.7
1.7 1.7 1.7
Good arrangement and ventilation. PGR’s Spray with B-Nine® WSG at 2,500–5,000 ppm as needed. Do not forget about calcium, apply Ca(NO 3 ) 2 + Mg(NO 3 ) 2 every 4 th or 6 th watering.
1.5
1.5 1.5
1.3
1
0.7 0.7
0.5
1 2 3 4 5 6 7 8 9 101112131415161718192021222324252627282930
How EC changes should look like.
Public
Vegetation stage. pH & EC control
• Check before it too late! • Taste soupe before you offer to your guest…
• Plant cannot tell you if it needs something it can show you but when deficiency is critical already. • Substrate pH: 5.8―6.2 • Substrate EC: SME* EC: 1.5―2.1 mS/cm, PourThru** EC: 2.3―3.2 mS/cm
• Check plant health (EC & pH) before plant needs reanimation.
Public
Fifth component of success.
Protect your plants.
Thrips is a main pest on Verbena Other pests: Fungus gnats, Shore flies, Aphids, Spider mites
Thiamethoxam - 1 g of active ingredient per l. Thiamethoxam + Chlorantraniliprole – 0.6 g/l + 0.3 g/l, Spinosad – 0.96 g/l
Treatment every 5―6 days. Change active ingredient.
Typical thrips damage
Public
Fifth component of success. Integrated protection
The best practice is to prevent infection and confirm phytosanitary condition:
•
not let the plant lose the turgor,
not overwater plants,
control fungus gnats and, sciarids (dark- winged fungus gnats). use clean substrate or apply protective chemicals, control substrate and water temperature,
biological protection methods,
sticky traps and UV traps is the best solution to reduce thrips population.
If you need to apply any chemicals check phytotoxicity on small group of plants.
•
Internal
Vegetation stage. Disease management
Disease
Active ingredients (rate)
Active Ingredient concentration in solution g/l*
iprodione (50%)
1.25 g/l
tetrachloroisophthalonitrile (82.5%)
0.83–1.2 g/l 0.5– 0,75 g/l 0.75 –1,25 g/l
Botrytis
fenhexamid (50%)
pentachloronitrobenzene (75%)
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 0.15 g/l
azoxystrobin (50%) 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%) polyoxin D zinc salt (11.3%)
0.75 –1,25 g/l
0.07 g/l 0.04 g/l 0,25 g/l
Penconazole (100 g/l) azoxystrobin (250 g/l)
Powdery mildew
* Check your local country regulations and restrictions. We strongly recommend that you test for phytotoxicity before you start using chemicals.
Public
Ready to bloom.
• Continue to follow up production scheduling. • Don’t stop to control parameters. • Adjust fertigation compound more suitable for blooming plants: 15–5– 20, 15–5– 17. Give them a bit more K • Continue to check pH and EC in the substrate.
Timing from transplanting depends on Pot size
6 l hanging basket (25 or 30 cm)
Series
Packs
Large packs 5–6 weeks 5–6 weeks 5–6 weeks
0,5 l (10 cm) 5–6 weeks 5–6 weeks 5–6 weeks
1 l (11 to 13 cm)
1.3 – 3 l (25 cm)
Obsession Obsession Twister Tuscany Obsession Cascade
5–6 weeks
6–8 weeks
6–8 weeks
7–9 weeks
5–6 weeks 5–6 weeks
6–8 weeks 6–8 weeks
6–8 weeks 6–8 weeks
7–9 weeks
-
-
-
5–6 weeks
6–8 weeks
6–8 weeks
7–9 weeks
Public
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)
Public
Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25Made with FlippingBook Learn more on our blog