The Effect of Salt Stress on The Growth of Maize

Abstract

The experiment was carried out in the laboratory of the Department of Crops - faculty of Agriculture - Omar Al-Mukhtar University for 2022y, to study the effect of salt stress on the growth characteristics of the triple hybrid 253 of Zea maize crop, using a completely random design. The treatments included (0, 25, 50, and 75 mM) of NaCl by three replicates. 10 seeds were placed in each Petri dish. Measurements were taken for the growth stage of each treatment. the Results found that increasing the concentration of NaCl led to a decrease in wet-dry weight, and radical length. However, was found that there was an increase of these traits at a concentration of 50 mM compared to a concentration of 25 mM, and the growth traits decreased at a concentration of 75 mM. As well as an increase in sodium chloride concentration led to a decrease in the germination rate, germination speed, germination strength index, and plumule wet weight, The highest values were at a concentration of 0.0 mM and the lowest at a concentration of 75 mM. The decrease reached a significant degree for each of the plumule lengths and the dry weights of plumule. The highest values were at a concentration of 0.0mM and the lowest was at a concentration of 75 mM.