Abstract
Height growth ofMentha piperita L. is better at 44% than 100% daylight. At 14% daylight, growth is limited, probably by lack of photosynthate, and no flowering occurs. Specific leaf area and protein content increase significantly with the decrease of irradiance. Shade leaves contain more chlorophyll and potassium than sun leaves. Sun leaves show higher levels of calcium because of their more xeromorphic structure. Transfer experiments between light and shade indicate thatM. piperita responds very effectively to irradiance also in a late stage of the life cycle with changes of specific leaf area and chlorophyll content.
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De Santo, A.V., Alfani, A. Adaptability ofMentha piperita l. to irradiance. Growth, specific leaf area and levels of chlorophyll, protein and mineral nutrients as affected by shading. Biol Plant 22, 117–123 (1980). https://doi.org/10.1007/BF02878249
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DOI: https://doi.org/10.1007/BF02878249