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Case Study: Eastern Washington #2

Licensed Washington state recreational producer (i-502), Airway Heights, WA.

Objectives

  • Maintain or increase THC content
  • Compare cannabinoids in bleached white tipped flowers

Environment

This grower clones under T5, Veg under LED and flowers under HPS. In flowering under LED, some of the plants experienced white tips (commonly called photo bleaching) on the flowers. A test was performed to find out if the white tips are of the same profile and financial value as standard green tipped plants.

Terpenes LED Ice (green tips) LED Ice (white tips) Sour Diesel (green tips) Sour Diesel (white tips)
Alpha Pinene0.053%0.061%0.072%0.060%
Camphene0.039%0.043%0.039%0.033%
Myrcene0.158%0.195%1.095%0.935%
Beta Pinene0.062%0.074%0.102%0.081%
Carene0.025%0.026%0.020%0.018%
Limonene0.078%0.091%0.162%0.123%
Terpinolene0.078%0.027%0.025%0.023%
Linalool0.069%0.094%0.145%0.127%
Terpineol0.068%0.080%0.089%0.073%
Geraniol< 0.001%< 0.001%0.015%0.013%
Caryophyllene0.232%0.310%0.241%0.271%
Humulene0.178%0.217%0.072%0.083%
Total Terpenes9.88mg/g of flower12.18mg/g of flower20.77mg/g of flower18.45mg/g of flower
Results2.3mg/g increase under LED2.32mg/g decrease under LED

RESULT: The difference, depending on the strain, is marginal between green tipped flowers and white tipped flowers. The flowers remain equivalent in value proposition for sale.