Adorelle
Adorelle has a plant type that can handle a lot of light and a poor climate very well. We advise to direct Adorelle in a maximally generative manner in the near future. Work in a less generative weather type with a good peak temperature in the afternoon and a sufficiently low pre-night (12-13°C, if possible) to stimulate bunch strength and set. The 24-hour temperature can easily be around 21°C with a light sum of 2000J/cm2.
We now see that fruit production is just above 100 fruits per m2 per week, so continue to aim for this. Pruning will not be necessary, Adorelle is a variety that does not overload itself. Also keep a head leaf with you, especially if the crop needs some extra generative guidance.
Sweetelle
The crops are generally strong generatively. At companies where imbalances are monitored, we see crops that are more open. The percentage of split bunches had dropped to around 40-50% in mid-April, but is now rising again to 70-80%. We see, just like in previous years, that Sweetelle corrects itself quite easily in terms of bunch size when the plant load increases. As a result, despite the relatively high plant load, the plant balance is still good.
Most growers continued to take a top leaf for longer than in other years. Especially for growers who ventilate more easily, the leaf length decreases considerably. We advise you not to take any more head leaves from the head from now on.
Continue to focus on plant strength in the coming period! We now see fruit production of more than 100 pieces per m2 per week among many growers. We recommend a maximum plant load of 650 - 700 pieces per m2 for Sweetelle in the next 6-8 weeks, also partly depending on the average fruit weight. A plant load that remains above this for a long time is at the expense of growth and plant balance.
Pruning policy
We see that significantly more bunch pruning is being done than in previous years, with bunch 3-4 from the top the tips are usually pruned away. The fruit weights are about 10.5 to 11.5 grams - fine, but slightly lower than last year. We see the fruit weight increasing in the “belly” of the crop.
Especially in a less active outdoor climate, aim for a sufficiently high peak temperature of 25-27°C between approximately 2pm and 4pm in the afternoon. Keep a close eye on the development time of the fruits; If possible, use the growth tube to bring more heat to the fruits. This is also a more energy efficient way of heating.
Duelle
Plant load, fruit weight: Most Duelle crops are in balance and generatively strong. We see more than 90% split bunches, sometimes even triple bunches. The plant load is therefore also higher than with Sweetelle, for example.
With the same plant load in units, this will require more energy from the plant than with Sweetelle, for example, due to the higher fruit weight. Just like with Sweetelle, try not to exceed 650 to 700 fruits per m2, prune if necessary.
Leaves out of the head: growers who now ventilate more easily are seeing a significant reduction in leaf length. Then (certainly) no more leaves need to be taken from the head.
Duelle naturally sets quickly, a high peak in the afternoon is less necessary than with other varieties. In addition, it is important to prevent excessive shocks in evaporation in the coming months, so be careful, for example, when venting any pre-night too suddenly.
Screen use and watering:
Duelle generally evaporates a little more than other varieties, up to 10-15% compared to, for example, Sweetelle and Adorelle. With continued screen use, take this moisture production into account under a closed screen!
In Duelle, also keep a close eye on watering in bad weather. In warm weather with (extra) a lot of evaporation, we recommend offering sufficient calcium. The K/Ca ratio may then be significantly adjusted temporarily.
TIAM23-5003
This is a ToBRFV resistant newcomer that is being tested by many companies. The crop and fruit type is very similar to Duelle, the production potential has also been proven to be in line with Duelle. Quality and taste are undoubtedly good.
TIAM23-5003 will be commercially available from June.
Baldomero (TIAM22-0102) and Bamano
Baldomero performs very well in the first commercial cultivations, with a crop and fruit type similar to Bamano.
Even with a high plant load, Baldomero and Bamano produce many split bunches with easy setting, making it easy to increase the plant load quickly. It may therefore be necessary to prune the 3rd and 4th branches to control the plant load and maintain balance in the crop.
To stimulate plant vigour, see the advice at Sweetelle and Duelle.
Climundo
Climundo has an averagely filled crop type with a lot of endurance. The bunches produce a stable and relatively high number of flowers throughout the season. The bunch strength and setting are definitely good.
For the coming period (until approximately the longest day), we recommend pruning crops with an assimilate surplus to 6 fruits per cluster. We see in current commercial crops that Climundo can handle this very well; it will optimize plant balance, quality and production.
Climundo is a variety with a higher potassium requirement. Therefore, keep a close eye on the potassium figure and adjust in time. We also have experience that Climundo is very strong against blossom end rot; an adjustment (increase) in the potassium dose is therefore not an immediate danger to susceptibility to blossom end rot.
Macrolophus seems to develop (very) easily on Climundo. Make sure that the macrolophus population does not become too high (above approx. 7-10 per plant).