This research studied the effects of different nitrate concentrations and salt stress on the growth and metabolism of three Mentha species and three Ocimum basilicum genotypes. The results showed that different genotypes had different responses to the conditions, with ́Chládek červená́ having the best growth under low nitrate and Mentha x piperita being the best mint species under low nitrate and salt stress. The combination of phenomics and metabolomics proved effective in determining the optimal growth conditions for the plants and the chemical markers associated with these conditions. It was also shown that both primary and secondary metabolites can be good markers for classifying both species. This research provides valuable information for eighth-grade education on the effects of nitrate and salt stress on plant growth and metabolism. Read the Research Paper Now