FIELD: agriculture.
SUBSTANCE: polynucleotide encoding a trehalose-6-phosphate phosphatase polypeptide is proposed. A corn plant with the increased crop yield, a corn host cell, a corn plant tissue, a binary expression vector, all comprising said polynucleotide, are proposed. An expression cassette for corn cell transformation is proposed, comprising said polynucleotide operably linked to a promoter controlling its transcription. A method for increasing crop yield in corn plants using the above expression cassette is proposed.
EFFECT: increasing the crop yield of a corn plant and mitigating the effect of stress caused by drought during flowering by means of reducing infertility, increasing the number of cobs per plant and increasing the number of grains per plant.
11 cl, 15 dwg, 15 tbl, 13 ex
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