Potential productivity realization of common winter wheat plants under drought

  • O. I. Zhuk


Aim. The goal of this work was to study the effect of soil drought on the reproductive ability of common winter wheat plants (Triticum aestivum L.). Methods. Wheat plants of cultivars Kujalnik and Ladijinka were grown under optimal nutrition and well-water conditions to the earing-flowering phase, after that the experimental plants were transferred to drought regime for 8 days, after that the optimal water supply was restored to the end of vegetation. During the experiment, the stem and ear length were measured. Ripened plants were analyzed according to the structure of the yield. Results. It is established that the effect of drought in the critical phase of ontogenesis the earing-flowering led to the decreasing the stem and ear length, the mass of the ear and grains, number of grains on plant. Conclusions. Water deficit in the soil in the critical phase of earing-flowering led to a decrease in the productive of winter wheat plants due to the inhibition of growth of stem and ear, decreasing grain number and the mass of ear and grains.

Keywords: Triticum aestivum L, stem, ear, productivity, drought.


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