Table 2 Light treatments applied during vegetative growth and flowering development phases.

From: Combination of red and UV-A light enhances hemp (Cannabis sativa L.) inflorescence yield and cannabinoid content

Treatment

Vegetative growth stage

Flowering stage

Light type

R:B:UV-A

Light type

R:B:UV-A

VWRW

white

1.9:1:0

white

1.9:1:0

VWRRW

white + red

2.9:1:0

white

1.9:1:0

VWRWUV

white

1.9:1:0

white + UV-A

1.4:1:0.3

VWRRWUV

white + red

2.9:1:0

white + UV-A

1.4:1:0.3

  1. Spectral segmentation for Red (R), Blue (B) and UV-A were 600–700 nm, 400–499 nm and 314–399 nm, respectively.
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