The Effect of Salt Stress on Proline Content in Maize (<i>Zea</i> <i>mays</i>)

Abstract

In this study, the effect of applied NaCl on the growth and proline concentration of maize varieties, i.e., (Zea mays L.), Syngenta 7720, Syngenta 6668, eco-91, Syngenta 7710 and Advanta Pac 751 vertex 751, was investigated. The experiment was conducted in laboratory conditions using a completely randomized design with three replications. The soil used for the experiment was salinized by applying NaCI (common salt) solution at the rates of 50 mM, 100 mM, 150 mM, 200 mM and 250 mM every three days for the duration of 12 days. We found that, according to the data we have collected on germination percentage and proline content, maize varieties (Syngenta 7720 and eco-91) had a significant increase in proline content and a decrease in plant growth as the concentration increased.

Keywords

• maize (<i>Zea mays</i> L.)
• salinity
• proline