Alleviation of salt stress by stimulative compounds in Matthiola incana L. plants

The aim of this study is to determine the influence of two stimulative compounds; amino-suam and setter-2 on enhancing the vegetative growth and improving the flower quality of Matthiola incana L. plant irrigated by saline water. To achieve this aim, pot experiment was performed in the two seasons; 2012/2013 and 2013/2014. The results revealed that, starting from 3200 ppm salinity concentration, the values of vegetative growth and floral characters were reduced, except for the number of leaves/plant. Salt stress increased Na and Cl percentages and proline content, it reduced total carbohydrates and chlorophylls as well as N, P and K contents. Setter -2 was more significantly effective in increasing the growth, floral characters, total carbohydrates, chlorophyll content as well as N, P and K and proline contents than amino-suam either in saline or non-saline condition. At the same time both stimulative compounds significantly reduced the Na and Cl%.