Updated project metadata. Pisum sativum (cv. Kudrnac) seeds were obtained from SEMO a.s., Smržice, Czechia. All plants used for the study grew in the experimental field plot at Veletiny, Czechia (49°02'N 17°33'E; 195 m a.s.l.). Sowing was done after the rainfall on June 1, 2022, and plants were grown in a natural environment without any additional treatment. After 35 days, the field was divided into three blocks (mock, SAt1, SAt2), each containing approxi-mately 100 plants. For five weeks, plants were weekly sprayed with 1.5 L water solution supplemented with 0.025% (v/v) Silwet L-77 (mock; K), or 100 µM salicylic acid and Silwet (final concentration as for the mock; SA-a). The third set was treated as the mock for two weeks, followed by four weeks with salicylic acid treatment (SA-b).