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THE EFFECT OF VARIOUS NITROGENIC LEVELS AND SPRAYING WITH GIBBERELLIC ACID ON PERCENTAGE RATIO OF SOME PHENOLIC COMPOUNDS OF MENTHA PIPERITA | ||
| AL-TAQANI | ||
| Article 1, Volume 26, Issue 1, 2013, Pages 0-0 | ||
| Abstract | ||
| The current study was carried out to investigate the effect of Nitrogen fertilization at levels (0, 46, 92 or 138) Kg/h and spraying with gibberellic acid in levels (0, 50 or 100) ppm on the quality and quantity of some phenolic compounds from Mentha piperita. Results showed, that the ethanol extract of Mentha leaves contained the following compounds: (Salicylic acid, Gallic acid and Quercetin) high performance liquid chromatography technique (HPLC) was used and the results were compared with some standard compounds for summer and autumn harvests. The autumn harvest recognition of salicylic acid 98.701% when the nitrogenic fertilizer was added in the level of 92 Kg/h, without spraying of gibberellic acid as well as quercetin and Gallic acid compounds about 7.202% and 41.230% respectively in the level of 138 Kg/h with spraying of gibberellic acid at concentration (100) ppm. | ||
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