Abstract
The article analyzes a biotechnological method of selective embryo culture in vitro, developed in order to accelerate the assessment of drought resistance of newly obtained hybrid combinations of economically important cereals. Using the example of spring soft wheat, the main stages of this method are considered from the standpoint of plant embryology and histophysiology. The brief review of literary and own works devoted to such a critical stage of embryonic development of cereals as their autonomy is given. Special attention is paid to the manners of detecting the drought resistance of autonomous embryos of hybrid combinations in selective embryo culture in vitro and in ex vitro soil conditions, as well as laboratory evaluation of regenerants caryopsises in drought simulation conditions. The embryonic parameters of drought-resistant regenerants in conditions of field drought are analyzed. The expediency of using the developed biotechnological method in breeding programs for obtaining drought-resistant hybrid combinations of cereals is discussed.
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