Abstract:

The main purpose of the experiment in the paper is to study the change of three targets including germination percentage, vitality index and germination index of corn seed germination process and the growth process of corn seedling under the different salt stress treatment. The concentration of NaCl solution was 0, 30, 90, 150, 210, 270 mmol/L, which had been deployed separately, and the filter paper had been soaked to the saturated condition by the each concentration NaCl solution. The experiment that salt stress in corn seed germination process had been finished in culture dish and the seedling height and the root length of corn had both been measured. Germination percentage, vitality index and germination index of three corn seed germination process had all been restrained by NaCl solution in varying degrees. And the growth tends of the seedling height and the root length were restrained, too. Different salt stress treatment had such an obvious restraining function to three corn seed germination process. Among three experiment materials ‘Nongda3138’ do well in the seed germination speed and the seedling growth tends under salt stress experiment.