Aim. The evaluation of the productivity components of wheat biotech plants with the additional copy of the ornithine-δ-aminotransferase (oat) gene under water stress conditions. Methods. Field and laboratory approaches for studying the parameters of the crop structure. Results. A comparative analysis of productivity components of control plants and forms, obtained via Agrobacterium-mediated transformation were made. During plants cultivation under water deficit the genotype differences among variants were detected. Conclusions. It was showed that under osmotic stress pressure biotech plants (T2) of wheat winter genotypes Favoritka, Dostatok, Volodarka demonstrated better indices of crop structure compared with control plants. The differences between T2 Zolotocolosa and control plants were not essential. Biotechnological plants with the additional copy of the oat gene under poor water supply conditions were higher, had better developed root systems and formed the increased number of additional (lateral) shoots.
Keywords: Triticum aestivum L., biotechnological plants, ornithine-δ-aminotransferase gene, productivity components.
Low Nitrogen Priming Enhances Photosynthesis Adaptation to Water-Deficit Stress in Winter Wheat (Triticum aestivum L.) Seedlings