| abstract |
The subject of the invention is the hydroxylamine derivatives of the general formula (I), in which R1 is unsubstituted or substituted with one or more halogen atoms or phenylalkylene or N-heteroaryl or naphthylene, X is a halogen atom, preferably chlorine or bromine, amino-ene or hydroxyl atom, Y is a hydrogen atom or a hydroxyl atom, or in the case where Y is a hydroxyl atom, the molecule contains a dioxazine ring formed by the overnormal XH elimination closing the X atom on a thermosetting carbon atom, R2 and R3 independently represent a hydrogen atom or a short-chain alkyl atom, with the stipulation that heat One of R2 and R3 is different from the hydrogen atom, the application of R2 and R3 together, together with the closed nitrogen atom, forms a 5-7 membered saturated ring, as well as a method and preparation for increasing the resistance of cruciferous plants against weather extremes. These compounds increase the plants' ability to withstand cold and frost, as well as their ability to withstand drought, and they are also thermally indifferent, non-toxic, and suitable for the treatment of both mature plants and seedlings and seeds. ŕ |