Effect of Garlic, Moringa and Licorice Extracts on Vegetative Growth and Chemical Constituents of Zanthoxylum beecheyanum K. Koch Plant

Abstract

Two field experiments were conducted during (2017-2018) and (2018-2019) at a commercial Nursery (Abnaa Shaesha) of Dakahlia Governorate, Egypt to evaluate the effects of natural extracts of garlic, moringa, and licorice on enhancing vegetative growth and chemical constituents of Chinese pepper (Zanthoxylum beecheyanum K. Koch) plant. The concentrations of used natural extracts were 0, 5, 10 and 15 % of garlic and moringa extract and 0, 5, 10 and 15 g L-1 of licorice extract. These extracts were applied as a drench on the surface soil pots at 250 ml-1 pot from each extract twice monthly starting from May to September. Results indicated that treating Chinese pepper plants with garlic extract at 15 % recorded pronounced significant values in vegetative growth parameters such as number of branches, fresh and dry weight of leaves and branches as well as total alkaloids and phosphors % while, total chlorophyll, carotenoids, and total sugars were heights in response to garlic extract at 5 %. In addition, the superior plant contents from nitrogen and potassium % in the leaves were generally increased with the exogenous application of moringa extract at 5 %. Based on the obtained results, it could be concluded that applied of garlic extract at 15 % followed by 5 % gave the best vegetative growth and alkaloids percentage in Zanthoxylum beecheyanum plants under experiment condition.