Fuente: WIPO "tomato" Methods of treating seeds to promote plant growth from the seeds and to induce tolerance to stress conditions including exposing seeds to an aqueous composition comprising a compound containing an NO-releasing moiety and an H2S-releasing moiety covalently bonded together, a compound containing an NO-releasing moiety and an H2S-releasing moiety covalently bonded to an aspirin derived core, or combinations thereof; and a polar solvent, when the seeds are pre-germination. The seeds and a kit containing the compound(s) is also claimed.