the invention relates mainly to the field of molecular biology and the way to improve yield in various economically important characteristics plants.in particular, the present invention relates to the method for improving the characteristics of the yield in plants by modeling the expression of nucleic acid in crops nia\u043a\u043e\u0434\u0438\u0440\u0443\u044e\u0449\u0435\u0439 polypeptide type CER2 (polypeptide type CER2 \u0430\u0446\u0438\u043b\u0442\u0440\u0430\u043d\u0441\u0444\u0435\u0440\u0430\u0437\u044b) or polypeptide type At1g68440 (the imp - dehydrogenase \/ gmp - reductase of Populus trichocarpa).the present invention also relates to the plants, the expression of \u043c\u043e\u0434\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0443\u044e nucleic acid \u043a\u043e\u0434\u0438\u0440\u0443\u044e\u0449\u0435\u0439 polypeptide or polypeptide type CER2 type At1g68440,with improved characteristics yield compared to the control plants.the invention also provides the previously known nucleic acid and containing \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0442\u044b applicable in the implementation way of the invention.the invention also relates mainly to the field of molecular biology and the way of improving the various economically important characteristics \u0443\u0440\u043e\u0436\u0430\u0439\u043d\u043e ste in plants.in particular, the invention relates to the method for improving the characteristics of crop plants by reducing the expression of \u043d\u0443\u043a\u043b\u0435 or significant reduction in plant \u0438\u043d\u043e\u0432\u043e\u0439 acid\u043a\u043e\u0434\u0438\u0440\u0443\u044e\u0449\u0435\u0439 endogenous polypeptide rna \u0433\u0435\u043b\u0438\u043a\u0430\u0437\u044b dead box, and \/ or level, and \/ or activity \u043f\u043e\u043b\u0438\u043f\u0435\u043f\u0442\u0438\u0434\u0430 rna \u0433\u0435\u043b\u0438\u043a\u0430\u0437\u044b dead box in the plant.the invention also relates to plants with a reduced or substantially reduced e
