The article studies meiotic chromosomal pairing of interspecific wheat hybrids Triticum durum Desf. x Triticum timopheevii Zhuk. under different temperatures of vegetation. The temperature influence on the recombination process is determined by a genotype and depends on plant resistance to the considered factor. It was stated, that timopheevii samples can change recombination frequency of wheat hybrids more intensive as compared to that of T. durum.

Key words: durum wheat, timopheevii wheat, genotypical diversity, interspecific hybrids, variation, temperature factor, chromosomal pairing, recombination process, chiasma frequency, bivalents, univalents.