Nitrogen Source Matters: High NH₄/NO₃ Ratio Reduces Cannabinoids, Terpenoids, and Yield in Medical Cannabis.

ABSTRACT: The N form supplied to the plant, ammonium (NH₄ ⁺) or nitrate (NO₃ ^-), is a major factor determining the impact of N nutrition on plant function and metabolic responses. We have hypothesized that the ratio of NH₄/NO₃ supplied to cannabis plants affects the physiological function and the biosynthesis of cannabinoids and terpenoids, which are major factors in the cannabis industry. To evaluate the hypothesis we examined the impact of five supply ratios of NH₄/NO₃ (0, 10, 30, 50, and 100% N-NH₄ ⁺, under a uniform level of 200 mg L^-1 N) on plant response. The plants were grown in pots, under controlled environment conditions. The results revealed high sensitivity of cannabin

SUBMITTER: Saloner A 

PROVIDER: S-EPMC9198551 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature