RED AND FAR-RED LIGHT RATIO DURING GROWTH OF BASIL

• Main Author: NICOLE, Céline Catherine Sarah
• Format: Patent
• Language: English; French; German
• Published: 04.01.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FISHING; FORESTRY; HORTICULTURE; HUMAN NECESSITIES; HUNTING; TRAPPING; WATERING

The invention provides a horticulture lighting arrangement (1000), comprising (i) a lighting system (100) configured to provide horticulture light (101) having a controllable spectral power distribution, and (ii) a control system (300) configured to control the spectral power distribution of the horticulture light (101); wherein in an operational mode of the horticulture lighting arrangement (1000) the horticulture lighting arrangement (1000) is configured to provide the horticulture light (101) according to an on-off schedule wherein consecutively an on-period (D) and an off-period (N) are applied, wherein:-the horticulture light (101) comprises one or more of first horticulture light (1011) comprising a wavelength selected from the range of 400-600 nm, red light (1012) comprising a wavelength selected from the range of 600-700 nm, and far-red light (1013) comprising a wavelength selected from the range of 700-800 mn;-the on-period (D) lasts in in the range of 12-20 hours and the off-period (N) lasts in the range of 4-12 hours, wherein the on-period (D) comprises an end-of-day period (EOD) at the end of the on-period (D), wherein the end-of-day period (EOD) lasts in the range of 0.5-4 hours;-wherein during a substantial of the on-period (D) before the end-of-day period (EOD) a R/Fr ratio, defined as a ratio I600-700 nm/I700-800 nm of red light (1012) and far-red light (1013), is selected from the range of 4-20, and during a substantial part of the end-of-day period (EOD) the R/Fr ratio is selected from the range of 0.1-4.