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Full Spectrum LED is better than Red Blue LEDs.

Is the lettuce leaf plant investing more on vegetative or generative growth? More leaves in relation to flowering stem length indicates that vegetative growth is more profound, whereas less leaves in relation to flowering stem length indicates generative growth. Even when growing baby leaf lettuce, a full spectrum is your better bet, for faster development and more batches per year, key in Greenhouse short window seasons. Here a Valoya spectrum test proves this.

Effects of red, blue and white light on the growth and development of Cannabis Sativa L.

A team in the Czech Republic published a study in November of 2017, which investigated the effect of red, blue and white light on the morphological and photosynthetic qualities of Cannabis sativa L. The overall study did find that white light (WL) emitting full spectrum of light affects plant growth and development better than Blue Red (BR) light. Namely, the plants grown under WL had an average leaf area of 100.03 cm (squared) compared to plants grown in BR light with an average leaf area of 79.54 cm(squared) . The WL treatment showed an increased plant height compared to BR treatment. Before deciding on a new LED light, I often ask clients to trial, and to select the most effective spectr

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