Guidelines Annico 2021

Annico (E15T.41537)
Cultivational guideline
Variety characteristics
• Resistances:
HR: ToMV:0-2/ToANV/Ff:A-E/Fol:0,1
IR: TSWV/On/Ss/Ma/Mi/Mj | T: Si
• Very uniform in terms of truss shape and fruit size
• Flat trusses
• Strong green parts with good shelf life
• Fast colouring to deep red
• Indicative fruit weight 40-43 grams (9 to 10 fruit/truss)
• Firm fruit
• Not sensitive to split fruit
• Fast, smooth fruit set
• Fairly open crop habit due to the horizontal leaf position
• Relatively strong-growing plant with stamina
• Very regular plant development
• Strong against leaf scorch
• Excellent uniformity in plants and stems
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Annico (E15T.41537)
Annico is distinguished by a high production level, while delivering uniformity in fruit size and
producing a very low percentage of class 2 trusses/fruit.
Rootstock and propagation
Annico is easy, fast and very uniform in propagation. The plant stretches slightly compared
to the reference variety T and will be around 10% taller. This must be taken into account in
propagation, especially in the period to reach day temperature. Annico is vigorously growing
and will need to be cultivated with a generative strategy.
When propagating in relatively high light conditions, it is advisable to halve the first true leaf
after grafting in order to avoid a strong vegetative bearing. Sufficient generative management
is very important, especially in the cultivation periods until 15 th September.
Cultivation
In the first months of cultivation, Annico gives strong, large leaves, good growth, but on
the other hand it also puts a lot of energy into its fruit.
With this variety don’t be too quick to label the thicker stems and long, broad leaves as
“vegetative”. Do not try to make Annico thin! We have to accept the leaf and stem volume
under the setting truss in the first 3 growing months. Instead assess the plant based on
the top 10 cm of the plant, focusing on achieving a sufficiently strong, generative truss.
In trials we have seen that Annico becomes balanced faster than, for example, Reference
B, and easily develops in a balanced way, helped by the easy fruit set. Active cultivation is
the best advice. Humidity control is very important with this variety. Literally put enough
energy into it!
Annico produces shoots quite easily. This is often an indication that the stems will also come
through well and evenly after topping. For evenness and uniformity, it is better to top on the
3 rd leaf. For planting dates until 1 st September, one might consider producing a plant with 3
stems, however, predominantly our advice would be to have 2 stems / plant.
Annico is not resistant to Verticilium. Generally a rootstock will be used anyway. As a grower,
choose the rootstock that best suits your cultivation method and cultivation strategy.
Plant load
Work on generativity and plant balance from 2 days after planting by using high 24-hour
temperatures with, if possible, a day/night difference of 6˚ to 9˚C. This may not always be
easy for planting dates between May 1 and mid-September. There is a surplus of light and
you can only go so far with this strategy.
Density
We do not yet have enough cultivation experience to be very specific. Below is an indication
of what is expected to suit Annico well:
Planting dates until 25/08 (week 34):
Plant out at 2.5 heads/m². Increase to 2.8 - 3.2 heads/m² with the first truss shoot, depending
on the light installation. With a lighting capacity of 14,000 lux or 200 micromol/s or higher, 3.2
heads/m² mid-winter should be possible.
If it is not a problem to reduce head density later, you can consider going directly to max
3.75 heads/m² with the first truss shoot. Reduce density to 2.8 to 3.0 heads/m² around week
38. This topped stem will be fully harvested empty by week 46 then. The final plant density
should be somewhere between 3.75 and 4.0 heads/m².
In terms of truss-pruning policy, you may choose not to prune the first 2 trusses during
this planting period or to only remove the ends of the trusses later. Goal: create plant load
as quickly as possible.
The same applies to plantings after mid-September, although humidity control becomes
an attention point sooner and more strongly. Striving for an airy and active climate is a
very important point in the autumn-winter period anyway. Ensure sufficient pipe heat
from below without causing a rise in 24-hour temperature.
In late September and October plantings, you will have to reduce the 24-hour
temperatures sooner than you may think. Around the 6 th to 7 th truss you really have
to focus more on truss quality! Accept the crop volume. Continuing with high 24-hour
temperatures for too long to get the crop “thin” often results in weak trusses and (too)
low fruit weight at the end of December and January.
Planting dates 25/08 (week 34) to 25/10 Week 43:
Plant out at 2.5 heads/m². Increase to 2.8 - 3.0 heads/m² with the first truss shoot (depending
on available light), then between week 2 and week 6 increase density in 2 steps to 3.75
heads/m² maximum.
Result of trials
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Annico (E15T.41537)
Annico has never appeared weak in any of our trials over the last few years. In different
cultivation regimes, next to different standard varieties, the variety performs well and
therefore seems very flexible. We did, however, observe that growth is somewhat more
difficult in the darkest periods when accompanied by a high plant load. It seems sensible with
the earliest plantings to stop removing a leaf from the head from week 46-48 onwards.
As spring approaches, the advice is to grow in a growth-oriented way by pinching the vents
to retain enough moisture, and growing at a slightly higher temperatures. This makes the
transition from the lit to the unlit period easier.
Annico’s production level is consistent and high. This is partly due to the fact that the fruit
weight remains stable, but also because the plant uniformity is very good. You will not see
weak stems. The possibility to truss prune to higher numbers and the very low percentage of
class 2 trusses/fruit also contribute to this.
Truss pruning and treatment
Annico is expected to perform best when pruned on 9-10 fruit/truss, for regularity, balance in
production and to allow you to adhere to a regular cultivation strategy.
Plantings until week 36:
Truss 1 and 2:
Prune to 10 or maximum 12 fruit or possibly not pruning to build the
plant load;
truss 3 to week 38: prune to 10 fruit; then all trusses of 10 fruit/truss are gone around
from week 38:
week 48;
Plantings week 36 - week 38:
prune on 9 fruit per truss
truss 1 to week 43: prune to 10 fruit or possibly not pruning to build up the plant load;
from week 43:
prune to 9 fruit
Plantings week 41 - week 44:
truss 1:
prune to 10 or 11 fruit;
from truss 2: prune to 9 fruit
Generally truss supports are used up to and including week 11.
Fertigation
There are no specific indications yet that the variety needs any special treatment as far as
nutrition is concerned.
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Descriptions, recommendations and illustrations in brochures and leaflets shall correspond as closely as possible to tests and practical experience
and are subject to typographical and/or printing errors. This information shall be provided to assist professional growers and users, whereby
variable local conditions must be taken into account. Under no circumstances shall Enza Zaden accept liability based on such information for
deviating results in the cultivated product. Current information concerning the resistances is available on www.enzazaden.com.
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