Abstract: With the NaCl Solution of different concentration, the differences among the fresh weight, root/shoot ratio, stem height, phosphorus uptake in the four different kinds of maize varieties were studied, and the relationship between the seedling traits and phosphorus uptake was discussed. The experimental results show that there was significant difference in the fresh weight, root/shoot ratio, stem height and phosphorus uptake among the different NaCl concentration and different varieties of maize. And there was a significant positive correlation among the fresh weight, stem height and phosphorus uptake in the different varieties of maize, and the correlation coefficient was above 0.748, while there was a significant negative correlation between the root/shoot ratio and phosphorus uptake in the maize.

Key words: salt stress, maize variety, seedling trait, phosphorus uptake