A method of providing a plant with stress resistance, comprising applying at least one substance (A) to the plant, said at least one substance (A) being selected from the group consisting of a compound represented by Formula (I) and the like and salts thereof. Phytotoxicity of a plant due to agricultural chemicals is reduced by providing the plant with stress resistance. [In Formula (I), R1 to R4 each independently represents a hydrogen atom, -SO3H, -PO3H2, a glycosyl group or -COR11. R11 represents an unsubstituted or substituted C1 to C30 alkyl group or an unsubstituted or substituted C2 to C30 alkenyl group.].
一种使植物具有抗逆性的方法,包括向植物施用至少一种物质(A),所述至少一种物质(A)选自由式(I)代表的化合物和类似物及其盐组成的组。通过为植物提供抗逆性,可减少农用
化学品对植物的植物毒性。[在式 (I) 中,R1 至 R4 各自独立地代表氢原子、-SO3H、-PO3H2、糖基或-COR11。R11 代表未取代或取代的 C1 至 C30 烷基或未取代或取代的 C2 至 C30 烯基]。