Evaluation Effect of Putrescine Treatment on Growth Factors of Soybean (Glycine max L.) Under Drought Stress Induced by Polyethylene Glycol

The present study aimed at evaluation of putrescine treatment on growth factors of soybean (Glycine max L.) under drought stress induced by polyethylene glycol (PEG). Soybean seeds were planted and irrigated with five solutions (control, drought, PEG, Put, and PEG-Put). Then, growth factors (length and weight) of seedlings, root, shoot, stem, hypocotyl, first internode, and plant were measured. Statistical analyses were performed by one-way ANOVA through Duncan Test at p?0.05 in SPSS (Version 21) in three iterations. Graphs were drawn in Excel Software (Microsoft Office, 2010). The results obtained from the present study showed that putrescine could not have considerable effect to alleviate adverse effect of drought stress caused by PEG in soybean.