This study aimed to improve the growth, productivity, and volatile oil production of fennel (Foeniculum vulgare, Mill.) plants. The researchers conducted an experiment to evaluate the effect of farmyard manure (FYM) and amino acid mixtures (tryptophan and glycine) at different concentrations on fennel plants and interaction parameters. The highest plant height, however, was recorded with the application of 40 m³/ha FYM. Significant effects due to the applied organics were observed on the number of branches per plant, total dry weight per plant, number of umbels per plant, fruit yield, and volatile oil yield per hectare. Besides, when compared with the abundance of other amino acids under study, fennel plants, sprayed with 300 ppm T + glycine, showed an increase in the abovementioned- parameters values. For the best productivity and volatile oil, the researchers fertilized fennel plants with organic fertilizer at a rate of 40 m3/ha; including foliar spray of amino acids at a concentration of 300 ppm. Through gas chromatography (GC/MS) analysis of fennel oil, the main compounds were estragole, D-limonene, L-fenchone, and anethole having the highest proportions of volatile oil compositions compared to other compounds. This study concluded that using organic fertilizers with foliar application and amino acids had positive and effective effects. These effects exemplified the growth improvement, seed productivity, production of volatile oil, and its components for fennel plants.
Zatimeh, A., & Al-Fraihat, A. (2000). Influence of Tryptophan and Glycine Acids on Growth and Productivity of Fennel under Different Organic Fertilizer Levels. International Journal of Horticultural Science and Technology, (), 63-74. doi: 10.22059/ijhst.2024.376979.854
MLA
Ahmad Abdlazez Zatimeh; Ahmad Hussin Al-Fraihat. "Influence of Tryptophan and Glycine Acids on Growth and Productivity of Fennel under Different Organic Fertilizer Levels", International Journal of Horticultural Science and Technology, , , 2000, 63-74. doi: 10.22059/ijhst.2024.376979.854
HARVARD
Zatimeh, A., Al-Fraihat, A. (2000). 'Influence of Tryptophan and Glycine Acids on Growth and Productivity of Fennel under Different Organic Fertilizer Levels', International Journal of Horticultural Science and Technology, (), pp. 63-74. doi: 10.22059/ijhst.2024.376979.854
VANCOUVER
Zatimeh, A., Al-Fraihat, A. Influence of Tryptophan and Glycine Acids on Growth and Productivity of Fennel under Different Organic Fertilizer Levels. International Journal of Horticultural Science and Technology, 2000; (): 63-74. doi: 10.22059/ijhst.2024.376979.854
)