Abstract
A Plastic house experiment was conducted at College of Agriculture - University of Baghdad, and applied according to Randomized Complete Block Design (R.C.B.D) using split- split plot design. The experiment included three factors. The water stress factor represents the main plots (50% and 100% of the field capacity) and are symbolized by W1 and W2. The sub-plots include Humic Fertilizer (Disper Humic) with four levels (0, 40, 80, 120 kg.h-1), which is characterized by (H1, H2, H3, H4), and sub-sub-plots include the amino acid (Ornithine), with three concentrations (0, 200, 250 mg L -1) and are symbolized (O1, O2, O3). Results indicated the triple-interaction between the studied factors (250 mg L-1 Ornithine and 120 kg.h-1 humus fertilizer and irrigation level of 100%) significantly gave the highest main stem lenght, stem diameter, number of branches, leaf area, the percentage of relative water content in the leaves, total chlorophyll content of leaves, dry weight of vegetative growth and root at flowering and fruiting stage (43 cm, 121.3 dis2 plant-1 , 193.7 mg 100g-1 , Fresh weight, 66.25 g plant-1 , and 29.79 g plant-1 , 86.98% respectively).
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