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Nitrogen and phosphorus levels affected plant growth, essential oil composition and antioxidant status of lavender plant (Lavandula angustifolia Mill.)

Author:
Chrysargyris, Antonios, Panayiotou, Christakis, Tzortzakis, Nikos
Source:
Industrial crops and products 2016 v.83 pp. 577-586
ISSN:
0926-6690
Subject:
Lavandula angustifolia, alpha-terpineol, antioxidants, borneol, camphor, chlorophyll, essential oils, flavonoids, hydroponics, landscaping, leaves, medicinal plants, minerals, nitrogen, odors, pharmaceutical industry, phenols, phosphorus, plant growth
Abstract:
Lavandula angustifolia (Mill.) is a multidisciplinary medicinal and aromatic plant of great importance in fragrance and pharmaceutical industries and/or landscaping. Minerals rate affect yield and quality of medicinal plants therefore, this experiment was conducted in order to determine the effects of nitrogen (N: 150–175–200–225–250mg/L) and phosphorus (P: 30–40–50–60–70mg/L) levels on the morphological and biochemical characteristics of lavender under hydroponic condition. The results indicated that P levels mainly affected plant growth, while lower N levels (150mg/L) reduced chlorophylls content. Essential oil yield was remained unaffected under N and P levels. The N levels greater than 200mg/L as well as 60mg/L of P, benefited antioxidant status (total phenols, DPPH, FRAP, flavonoids). The main constituents of leaves essential oil (1.8-cineole, borneol, camphor, α-terpineol, myrtenal) and mineral accumulation were affected by N and P treatments.
Agid:
5265096