Abstract
Recently, a series of papers reported preparation and physicochemical properties of various kinds of water treated in contact with various gases with low-temperature, low-pressure glow plasma of low frequency (LPGP). Consecutive papers presented results of watering numerous herbal plants with those kinds of water in planting of numerous herbal plants. Always, the watering influenced the yield and quality of the crops and considerably changed the composition of the essential oils extracted from the watered plants. This paper provides the effects of watering of Cannabis sativum var. Finola with water LPGP-treated either in the air (LPGPA), under molecular nitrogen (LPGPN) or carbon dioxide (LPGPC). Cannabis sativa, particularly its botanic class called hemp, attracts great attention for its numerous applications. They include rope, textiles, clothing, shoes, food, paper, bioplastics, insulation, biofuel and industrial fibre. The watering was maintained for 12 weeks. Regardless of the kind of the used plasma-treated water, a considerable increase in the plant crop yield was noted for first 7 weeks. Further cultivation resulted in a minute increase in the yield. The watering with LPGPC offered the highest crop yield, followed by nontreated water, LPGPN and LPGPA. The yield of essential oil per 1 g of plant was independent of the used kind of plasma-treated water. Watering Finola with LPGPA resulted in a decrease in the level of cannabidivarin (CBD V) and considerable increase in the deal of Δ 9-tetrahydrocannabinol (Δ9-THC). The levels of the remaining components of the essential oil slightly decreased with respect to that in the control sample. Almost identical trends in the influence of watering upon the composition of essential oil were observed in the case of LPGPN. However, an unusually strong decrease in the level of CBD V accompanied by a very high increase in the level of Δ9-THC could be noted. The performed study provided strong evidence that watering seeds and plants of Finola with various kinds of the LPGP-treated water could modulate and even tailor the crop yield, functional properties of the plant and essential oils extracted from it. The composition of the essential oil isolated from the plant watered with LPGPN suggests its application as a substitute of medical marijuana (medical cannabis).
Highlights
A series of papers was published on the preparation and physicochemical properties of water treated either in the air, ammonia, nitrogen, hydrogen, methane or oxygen with a unique low-temperature, low-pressure glow plasma of low frequency (LPGP) [1]
This paper describes the effect of watering Cannabis sativa var
Finola with water treated with low-temperature, low-pressure glow plasma either in the air, under nitrogen or under carbon dioxide provided modulation and tailoring functional properties of crops and essential oil extracted from this plant
Summary
A series of papers was published on the preparation and physicochemical properties of water treated either in the air, ammonia, nitrogen, hydrogen, methane or oxygen with a unique low-temperature, low-pressure glow plasma of low frequency (LPGP) [1]. The application of these kinds of water in the planting of numerous herbal plants was presented [2,3,4,5,6]. Effects of watering of those plants with such kinds of water depended on the way of their preparation. With few minor exceptions, watering of those plants with processed water positively influenced the yield of crops. Such procedures provided an increased yield of essential oils and remarkable changes of their composition. Choice of the water for watering provided controlling biological properties of the herbs and their applications
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