Drought has influence on crop production on the world, which causes a globalenvironmental and ecological problem. Plant hormones such as salicylic acid (SA) and ethylene(ET) which are performed just using exogenous application of chemicals have beendemonstrated to play an important role in plant response to abiotic stress. However few arecarried out by reverse genetics.In order to assess the role of SA or ET in plant response todrought stress, we designed this experiment using Arabidopsis (Columbia) wild ty...