EFFECT OF GARLIC AND ACADIAN EXTRACTS APPLICATION ON GROWTH AND YIELD OF SUMMER SQUASH (CUCURBITA PEPO L.)Fathel F.R. Ibraheem, Esraa A.A.J.AL-Bohamd and Abdullah M.S.AL-DabbaghAbstract To improve growth characteristics and promote the productivity of summer squash plants an experiment was carried out at a field of Horticulture and Landscape Department/ College of Agriculture and Forestry/ Mosul University during spring growing season 2018 to study the physiological effect of Acadian and Garlic extracts at a concentration of 4 ml.L-1 in addition to the control treatment (distilled water) with three application methods to add the two extracts mentioned. These are: the method of addition to soil, foliar spraying method and combination of the previous two methods (add to soil + foliar spray). This method of adding extracts has been repeated in the three stages of plants growth, the Acadian extract causes a significant increase in plant height, number of leaves, leaves area, number and length of fruits per plant in addition to plant yield and total yield as compared to control plants while Garlic extract showed a significant increase in most growth and yield characteristics studied as compared to the control treatment such. The addition of Acadian and Garlic extracts by combination method (add to soil+ foliar spray) causes a significant increase in the total chlorophyll content in the leaves as compared to the soil and foliar application methods. |