Effect of Soaking Seed with o Growth Regulator, Antioxidants and Natural Extracts a on Maize Germination nd Seedli

Abstract

A laboratory experiment was conducted to study the effect of soaking seed treatments for 18 hours with different concentrations of some growth regulators (indol acetic acid and indole butyric acid at the rates of 200, 400 and 600 mg l and gibberellic acid at the rates of 500, -1 1000 and 1500 mg l ), antioxidants (ascorbic acid and oxalic acid at the rates of 200, 400 and 600 mg l ) and natural extracts as biostimulants -1 -1 (black seed extract and yeast extract at the rates of 50, 100 and 150 ml l ) on germination and seedlings parameters of maize hybrid Single -1 Cross-10 (SC-10). The soaking maize seeds in yeast extract at 150 ml l for 18 hours as a bio-stimulant before starting germination -1 improvement of germination parameters. This was followed by soaking maize seeds in antioxidant substances such as ascorbic acid at 600 mg l for 18 hours and then soaking maize seeds in yeast extract at 100 ml l . In order to maximize germination and seedlings parameters of -1 -1 maize seeds hybrid SC-10, soaking seeds in yeast extract at 150 ml l as a bio-stimulant or ascorbic acid at 600 mg l as antioxidant for 18 -1 -1 hours could be recommended