For growers seeking an improved alternative to Komeett, we are proud to introduce Padua, the most recent TOV launch for De Ruiter®. Padua is a red on the vine tomato hybrid that produces large round fruits in the range from 145-170 grams. Developed in Ontario to withstand tough summer conditions, the variety also offers high yield potential and extra vigor for glasshouses and greenhouses operating year round. It has intermediate powdery mildew resistance, and has performed well in dry climates.
One of Padua’s features is its ability to maintain fruit size and quality under conditions with high heat and humidity. This tomato is not jointless, and is known for its endurance and uniform trusses.
TYPE: Large, red tomato on the vine
USE: High-tech greenhouses, year-round
Early Season Tips
Especially in the beginning of the crop, Padua’s vigor necessitates leaf removal. Growers should remove a leaf from the top of the plant on a weekly basis, to make sure that the plant will work on its fruits enough. During the duration of the crop, continue removing a leaf from the top as needed to keep
this crop open as the leaves can become quite large. Padua will need a generative climate approach, especially in the beginning of the crop, with good pre-nights.
Powdery Mildew Resistance
Powdery mildew is one of the most devastating diseases affecting tomato cultivation worldwide.1 A good disease package can go a long way for tomato varieties, and Padua comes with intermediate resistance to powdery mildew. This helps during warmer weather and longer seasons. In the event of an outbreak, early disease detection is crucial.2
Because of its strong vigor, it generally doesn’t require grafting to resistant rootstock. However, Padua provides flexibility for growers on long crop cycles, as it grows well in grafted systems.
When choosing a grafted approach, growers should select either Maxifort or DR0138TX rootstock, being certain to pinch the graft. Pinching on the second true leaf is advised.
Other factors that would impact the decision to graft include the type of substrate used, and the amount of carbon dioxide per hectare. Padua has the potential to perform well regardless of whether or not you choose a grafted or non-grafted approach.
Approaches to Fertilizer
Growers taking a grafted approach could consider choosing rootstocks with high nitrogen acquisition ability, which can allow for decreased fertilizer application without reducing yields, minimizing environmental nitrate pollution.3 Early in the season, growers want to encourage generative rather than vegetative growth, so controlling nitrogen is very important. Excessive nitrogen can contribute to easy growth, which is not desirable in such a vigorous variety. Please contact your De Ruiter representative for questions on fertilizer management.
Vigor and Artificial Light
By 2025, nearly 50 percent of glasshouse growers will be using artificial light, according to expert predictions. By staying in market every day of the year, they could produce a more consistent supply to meet consumer demand.
Padua’s vigor should also support good growth under artificial light conditions, which can offer growers a measure of control in unpredictable lighting and temperature conditions. The heat generated by high pressure sodium lights accelerates generative growth, which can stress less vigorous varieties.