الفهرس 
Title
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Abstract
The present study was accomplished to achieve the effect of stimulated and growing media on indoor plant during two consecutive seasons (2016 and 2017) at the Experimental Nursery of Ornamental Horticulture Department, Faculty of Agriculture,Cairo University. Effect of some biostimulants on Spathiphyllum wallisii (Algae at 2 and 4 g/l, chitosan at 0.1 and 0.2 g/l, Atonik at 1 and 2 ml/l and Humic acid at 1 and 2 ml/l ) on the vegetative growth and chemical constituents of Spathiphyllum wallisii plant. The obtained results revealed that all treatments of the bio-stimulants significantly increased the plant height, stem thickness, significantly enhanced the formation of leaves ,as compared with the control treatment.The application of algae at 2g /l, produced the tallest plants, followed by the high level of atonik and chitosan. Atonik at 2ml/l and low level of algae treatments formed the thickest stems.The highest value of number of leaves and the heaviest leaves were produced with the treatments of atonik at 2ml/l and algae at 4g/l. The largest measured of leaf area for Peace lily plant (Spathiphyllum wallisii) was measured atonik at 2ml/l, followed by low level of algae and high levels of chitosan and humic acid. Spraying plants with chitosan at 0.2g/l or atonik at 2ml/l or algae at 4g/l increased the formation of roots