Controlled Environment Agriculture Research

How LED Lighting and Nano-Chelated Potassium Enhance Rose Cultivation

Red light therapy for roses

Roses are a universal symbol of love and elegance, but behind their beauty lies a complex cultivation process. A recent study by Heidari et al. (2023) provides new insights into how LED light and nano-chelated potassium can enhance the growth and quality of these beloved flowers.

Traditionally, roses are classified as neutral day plants, thriving in high light and cool temperatures to produce high-quality flowers. However, the research team found that the quality of light—specifically, its spectrum—can significantly affect the yield and quality of the flowers. As such, the researchers sought to study the effects of different LED light spectra (control, blue, and red) and levels of nano-chelated potassium (0, 1.5, and 3 g/l) on the Rosa hybrida cv. Dolce Vita, a hybrid rose variety.

The results were illuminating: the light and nano-chelated potassium treatments significantly affected the rose’s morphophysiological and biochemical traits. Using red light and nano-chelated potassium in rose cultivation improved the flowers’ quality characteristics and extended their vase life.

It was found that the red light treatment and a concentration of 3 g/l nano-chelated potassium resulted in the highest fresh and dry weight of the flowering branch and the tallest plant height. In addition, this combination also significantly increased biochemical parameters such as phenolic compounds, leaf and petal flavonoids, petal anthocyanin content, antioxidant capacity, and vase life compared to the control group.

To summarize, the study proposes that utilizing red light and a concentration of 3 g/l nano-chelated potassium can enhance the quality of rose flowers, particularly in situations with insufficient light. This research can significantly impact the flower industry, potentially resulting in more effective cultivation methods that yield longer-lasting, superior roses.

As we continue exploring the intersection of technology and nature, studies like this by Heidari et al. underscore the potential for innovative approaches to enhance the cultivation of our most cherished flowers. With each finding, we come one step closer to a sustainable and efficient future in agriculture.

Read the rest here.

Photo by Franco Gancis on Unsplash 

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