At the rose breeding company in Kudelstaart one bay has now been fitted with a combination of HPS lamps (80 µmol/m2/s) and Philips GreenPower LED toplighting (80 µmol/m2/s), making a total of 160 µmol/m2/s .
The installation of the LEDs is the first visible step in the red Avalanche+ project. The primary focus in this breeding programme is on the search for a new, special red rose. The first commercial cultivars are expected to appear on the market in 2017/2018.
The first cultivar in this program is being lit with a hybrid lighting installation, along with other varieties.
Dümmen Orange rose product manager Dennis van Dijk said: "Red cultivars benefit from a high light level. The additional lighting that Philips LED lamps bring to our breeding site enables us to achieve the same light level as the most modern rose businesses."
Philips Horticulture LED Solutions managing director Udo van Slooten said: "For us it’s really useful to be working with an international breeder. For instance we can test the effect of technological developments on several crops and varieties. We mainly consider the increase in quality and yield to be important. So we’re proud that we’re working with a partner like Philips. It means that we can give growers greater confidence and offer them certainty for the future."
Last year rose nursery Wimceco and flower nursery Scheers in Belgium invested in LEDs to supplement their HPS installation. The Dutch rose nursery Porta Nova is trialling LEDs. At the Delphy Improvement Centre in Bleiswijk research is being conducted into 100 per cent LED lighting for roses.
Meanwhile, Philips Lighting has announced the launch of its GreenPower Dynamic LED production module. The LED growth lighting and software are suitable for growers and researchers looking to switch between light recipes designed for nurturing different crops. It will be demonstrated for the first time on Stand 11.101 at Greentech at RAI conference center in Amsterdam and is available in Q4 this year.
The Philips GreenPower Dynamic LED horticultural lighting and software allows growers and researchers the ability to adjust dynamically both the LED colours in the spectrum (far red, red, white and blue) as well as individual light intensities. This is in contrast to previous horticultural LED light with a predefined color spectrum which could not be altered. The new system delivers flexibility for researchers and growers to try out dynamic horticultural LED light recipes such as adjusting the light colour during the day. This opens up new possibilities for growers to differentiate crop taste and increase yield.
Udo van Slooten said: "This dynamic growth lighting system is the latest innovation in the Philips Lighting GreenPower LED range. Now, growers and researchers can grow a variety of crops with dynamic LED lighting spectra and intensities with just one LED system. This means they can work with dynamic light recipes to meet the different growth needs of specific crops, flowers and plants."
A recipe combines the following elements: light spectrum, intensity, illumination moment, uniformity and positioning. Using a light recipe, a grower can develop specific plant characteristics, from compactness, color intensity and branch development to flowering in order to improve results. For instance, some plants benefit from different lighting spectra and intensities during different phases of growth, such as cultivating the red coloration of lettuce. Also, these elements can be used to stimulate stretching or stem elongation to prevent a crop from becoming too long and less strong.