CROP MANUAL
Mandevilla hybrida Rio ®
Central Europe Northern Europe
Rio ® Rio ® Petite Rio ® Elegant Rio ® Grande
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TM Classification: PUBLIC
Finished Plant Rio ® , Rio ® Petite, Rio ® Elegant 11/12 cm pot
Remarks
Mandevilla is a very light/temperature sensitive crop. Therefore enclosed schedule can be only a rough guideline. More details on request. Lead time is depending on light, temperature and as a consequence PGR treatments.
Series
Type
Pot size
Plants/m² finished
Remark
Rio®
compact
10.5–14 cm
25 - 50 plants/m²
The standard
Rio® Petite
compact
Packs-10.5 cm
50 - 100 plants/m²
for cemetries!
Rio® Elegant
medium
10,5–14 cm
25 - 50 plants/m²
exclusive colors
Rio® Grande
vigorous
18 cm and more
10 plants/m²
wk 24 for year after
2 – 3 young plants
Calendar Week
5 6 7 8 9 101112131415161718192021222324
P
F
P
F
Scheduling with a QSL (Ethiopia) for 11 cm pot (2 plugs) or 12 cm pot (3 plugs) without pinch at an average daily temperature of 18°C adjusted to light levels. Variety Rio®, Rio® Elegant. For Rio® Petite reduce by one week.
P
F
P
F
P
F
P
F
P
F
P
F
P
F
P
F
Mandevilla hybrid Rio ®
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Crop Manual
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Classification: PUBLIC TM
Cultivation Advice
Use each Rio ® genetic for the relevant pot size.
Crop pinching is not recommended when planted with single plant per pot in January or later for sales in the same spring. Pinching is only recommended for an early transplanting before October. Pinching during the months from November until February is not recommended as gives stress to the plants. This can cause losses and leave drop. For non-Mediterranean climate environment, a planting with multiple young plants/QS is recommended. Reason for that is that Mandevilla in general branch not very easy and do not forgive pinching or other crop maintenance during low light periods. Syngenta recommends 2 – 3 ypl/pot – depending on pot size (10,5/11 cm 2 plants, 12/13 cm 3 plants). From experience it gives a far better result when the ypl are transplanted with some space in-between the ypl. Despite the draught resistance at consumers Mandevilla is rather sensitive on uneven irrigation during cultivation, mainly in winter times. Therefore, a scale is recommended to secure an even watering without too extremes ups and downs. Temperature range during transport & distribution of finished product to be kept between 12 - 15 ° C. Mandevilla is a tropical plant. Low temperatures below 16 ° C delay development.
Tips & Tricks
Fertilization & Substrate
Pests
Light
PGR Applications
All irrigation has to be done from underneath (ebb&flood, capillary). Dry back of upper part of pot is allowed. Although very draught resistant in the garden Mandevilla do not like to be grown dry in the greenhouse. Mandevilla prefer stable moisture in the pot to grow stress free. It is recommended to transplant the ypl separately. From trials this gives a better and more uniform result.
Important to keep EC levels > 1,5 (high EC) at second half of growing in the substrate. Use a high porosity with well drained media.
Aphids and Spidermitesare common pests; Mealy bugs are possible. Under Northern conditions Whiteflies are hardly to see.
High light levels to avoid veining and promote growth. Perfect are DLI above 15 mol. With lower light levels (8 - 10 mol/day) please reduce temperature to avoid veining. Due to new developments in LED light, there are possibilities to reduce PGR and lead time by using blue LED.
Growth control can be reached with use of Regalis (prohexadione-calcium), Bonzi (paclobutrazol), Caramba (metconazole), Carx (Mepiquat, Metconazol) or B9/Alar (daminozide) as single product or tank mixed with CCC (chlormequatchloride). Please check the products are registered in the country before using them. Any late PGR will result in delayed flowering.
Diseases
Botrytis, Pythium, Rhizoctonia, Fusarium, Colletotrichum, leaf spot are common diseases.
Mandevilla hybrid Rio ®
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Crop Manual
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Classification: PUBLIC TM
Recommendations
Culture guideline at optimum average daily temperature 18 - 20°C
Handling Culture week
1 2 3 4 5 6 7 8 9 10111213141516
Temperature D/N
18 - 20°C - with a DLI >15 mol/day Postive when available*
Humidity Shading Light pH Moisture
* New developments in LED give new possibilities. Please contact us to get an update on the latest recommendations.
☀
70 – 80%
2
3 5.0 - 5.5
2
EC growing medium EC feeding in mS/cm Fertilizer
1.25 - 1.5 mS/cm 2.0 - 2.5 mS/cm
1,5 - 1.75 mS/cm 2.0 - 2.5 mS/cm
N : K 1 : 1
Legend
Mandevilla hybrid Rio ®
4
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Crop Manual
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Classification: PUBLIC TM
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