effect of organic fertilizers and salicylic acid on the yield and some secondary metabolites of lemon balm (melissa officinalis l.)
in this research, the effects of organic fertilizers (bovine, sheep, leaf mould and vermicompost fertilizers) combined with foliar application of salicylic acid (sa) at the rate of 0, 10-2, 10-4 and 10-6 m on essential oil percentage and some secondary metabolites of lemon balm were investigated. the experiment was conducted as complete randomized block design with factorial arrangement in pots with three replications. the parameters such as shoot fresh & dry weights, oil percentage, essential oil components, the amount of ra and the antioxidant activity were measured. essential oil was extracted by clevenger, the essential oil components were identified by gc/ms, ra was estimated by hplc and antioxidant activity was measured by spectrophotometer. based on the analysis of variance, the effects of organic fertilizers and sa on oil percentage, the amount of ra and antioxidant activity were found to be significantly different. maximum oil percentage (%0.536) was recorded in the treatment of bovine fertilizer combined with 10-2 m sa and the lowest level (%0.203) was observed in bovine and sheep fertilizers without sa. the essential oil analysis revealed that citral (e & z) at the rate of 61.88 % was the highest essential oil component of lemon balm. the highest and lowest amounts of ra were found in plants treated with sheep manure 10-4 m sa and control plants respectively.
The Effect of Organic and Chemical Fertilizers on Content and Composition of Essential Oil in Lemon balm (Melissa officinalis L.)
In this research the effects of organic and chemical fertilizers on essential oil content and composition of lemon balm were investigated. This research was conducted in completely block randomized design with 4 replications in 2019 and 2020. Treatments were organic fertilizers (from source of horse, sheep, cow, hen and vermicompost) and complete chemical fertilizer of NPK (20-20-20). The most ...متن کامل
effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars
این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...
This research focuses on the analysis of the chemical component of essential oil of lemon balm. The essential oil of leaves was obtained by extraction. The chemical components of the essential oil of lemon balm were analyzed by capillary GC and GC/MS and 8 substances were identified. The quality of the final product depends heavily on the operation of freeze drying (FD). It was found that essen...متن کامل
Effect of water-deficit stress on secondary metabolites of Melissa officinalis L.: role of exogenous salicylic acid
Melissa officinalis is a perennial herbaceous plant from Lamiaceae family, widely used in food and pharmaceutical industries to add aroma. Drought stress in plants may happen due to the increase in water loss, insufficient water absorption or both. Salicylic acid (SA) is an important secondary metabolite in plants with hormone-like action in some biochemical pathways. Adding it during water-def...متن کامل
histological evaluation of the effect of three medicaments; trichloracetic acid, formocresol and mineral trioxide aggregate on pulpotomized teeth of dogs
چکیده ندارد.15 صفحه اول
Background & Aim: Turmeric, scientifically named (Curcuma longa L.), a member of ginger (Zingiberaceae) family, is a perennial plant, with pharmaceutical properties and with a rhizome. This plant has many medicinal characteristics including anti-cancer, anti-bacteria and anti-hepatitis properties. Experimental: To study the effects of Gibberellic acid and Salicylic acid on leaf, the r...متن کامل
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عنوان ژورنال:پژوهش های تولید گیاهی
جلد ۲۳، شماره ۱، صفحات ۱۰۷-۱۳۰