Application of Super Absorbent Polymer and Plant Mucilage Improved Essential Oil Quantity and Quality of var. Keshkeni Luvelou.

One of the major factors limiting the production of medicinal plants in arid and semi-arid areas is water deficit or drought stress. One-third of the land in the world is arid and semi-arid and is inhabited by nearly 4 × 10 people. (sweet basil) is a valuable medicinal plant that is sensitive to water deficit, and water shortage negatively affects sweet basil yield and quality.