Optimizing LED Light Intensity and Photoperiod to Promote Growth and Rooting of Medicinal Cannabis in Photoautotrophic Micropropagation.

In contrast, under the photoperiod of 18 and 24 h d −1 , SOD activity exhibited an increasing trend with rising light intensity.

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Under the same light intensity, as the photoperiod increased, the root length, stem diameter, water content, and root shoot ratio of both cultivars exhibited a decreasing trend.

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