en Phytochemical and Morpho-physiological Responses of Lemon Balm (<i>Melissa officinalis</i> L.) to Biostimulants Application كشاورزی و اتنوبوتانی Agriculture & Ethnobotany پژوهشی Research <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Background:</strong> Biostimulants are amino acids and organic components, which can play main role in the plant growth and dry matter accumulation.</p> <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Objective: </strong>Determine the influence of foliar application of active amino acids on quality and quantity yield of <em>Melissa</em> <em>officinalis</em> L.</p> <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Methods: </strong>This study was conducted in a research farm at the institute of medicinal plants on the base of randomized complete blocks design (RCBD) with three replications. The treatments were control (foliar application with distilled water) and commercial formulations of aminolforte, kadostim, fosnutren, and humiforte (each of them 2 L ha^-1), and chemical fertilizer (70 kg ha^-1 N.P.K).</p> <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Results:</strong> The results indicated that a significant increase in the content of citronellal, neral, delta-cadinene, germacrene, and geranial, were found in response to aminolforte and fosnutren application. The essential oil content was also increased through using kadostim and chemical fertilizer. A significant improvement in the plant height, number of flowers per stem, and SPAD value were observed in response to the foliar application of aminolforte. Morover, foliar application of fosnutren improved leaf length, leaf number, leaf area, leaf dry weight, and shoot dry weight, accordingly. There was no variation in the number of branches per plant among the treatments of kadostim and aminolforte both of these treatments improved the attribute.</p> <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Conclusion:</strong> The foliar application of free amino acids based on commercial formulations including aminolforte, kadostim, humiforte, and fosnutren can be effective on the quality and quantity yield of lemon balm.</p> <div dir="ltr" style="text-align: justify;"></div> <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Background:</strong> Biostimulants are amino acids and organic components, which can play main role in the plant growth and dry matter accumulation.</p> <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Objective: </strong>Determine the influence of foliar application of active amino acids on quality and quantity yield of <em>Melissa</em> <em>officinalis</em> L.</p> <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Methods: </strong>This study was conducted in a research farm at the institute of medicinal plants on the base of randomized complete blocks design (RCBD) with three replications. The treatments were control (foliar application with distilled water) and commercial formulations of aminolforte, kadostim, fosnutren, and humiforte (each of them 2 L ha^-1), and chemical fertilizer (70 kg ha^-1 N.P.K).</p> <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Results:</strong> The results indicated that a significant increase in the content of citronellal, neral, delta-cadinene, germacrene, and geranial, were found in response to aminolforte and fosnutren application. The essential oil content was also increased through using kadostim and chemical fertilizer. A significant improvement in the plant height, number of flowers per stem, and SPAD value were observed in response to the foliar application of aminolforte. Morover, foliar application of fosnutren improved leaf length, leaf number, leaf area, leaf dry weight, and shoot dry weight, accordingly. There was no variation in the number of branches per plant among the treatments of kadostim and aminolforte both of these treatments improved the attribute.</p> <p dir="ltr" style="margin-left: 14.05pt; text-align: justify;"><strong>Conclusion:</strong> The foliar application of free amino acids based on commercial formulations including aminolforte, kadostim, humiforte, and fosnutren can be effective on the quality and quantity yield of lemon balm.</p> ,Melissa officinalis L., Amino acids, Essential oil, Foliar application, Quality and quantity yield Melissa officinalis L., Amino acids, Essential oil, Foliar application, Quality and quantity yield 29 42 http://jmp.ir/browse.php?a_code=A-10-44-93&slc_lang=en&sid=1 A Mehrafarin علی مهرآفرین a.mehrafarin@gmail.com 100319475328460041674 100319475328460041674 No Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran مرکز تحقیقات گیاهان دارویی، پژوهشکده گیاهان دارویی جهاد دانشگاهی N qavami نسرین قوامی nqavami@yahoo.com 100319475328460041675 100319475328460041675 No Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran مرکز تحقیقات گیاهان دارویی، پژوهشکده گیاهان دارویی جهاد دانشگاهی Z Tahmasebi Goojogi زینب طهماسبی گوجگی 100319475328460041676 100319475328460041676 No Department of Horticulture, Science and Research Branch, Islamic Azad University, Tehran, Iran دانشگاه آزاد اسلامی واحد علوم و تحقیقات HA Naghdi Badi حسنعلی نقدی‌بادی Naghdibadi@yahoo.com 100319475328460041677 100319475328460041677 Yes Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran مرکز تحقیقات گیاهان دارویی، پژوهشکده گیاهان دارویی جهاد دانشگاهی V Abdossi وحید عبدوسی gardening@srbiau.ac.ir 100319475328460041678 100319475328460041678 No Department of Horticulture, Science and Research Branch, Islamic Azad University, Tehran, Iran دانشگاه آزاد اسلامی واحد علوم و تحقیقات M Seifsahandi مهدی سیف‌سهندی 100319475328460041679 100319475328460041679 No Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran مرکز تحقیقات گیاهان دارویی، پژوهشکده گیاهان دارویی جهاد دانشگاهی