V. M. Chekurov

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The effects of low/high light intensities and day length on ear emergence time in climatic chambers were studied in 12 common wheat (Triticum aestivum L.) cultivars of different ecogeographical origin. Low light intensity (LI) affected the time to ear emergence in all the wheat cultivars of both the photoperiod sensitive and insensitive genotypes,(More)
An effect of low temperature (0-2 degrees C) on meiosis was studied in different varieties from various ecological zones. It is shown that the Mexican varieties are most sensitive to the effect of low temperature. The percentage of sterile pollen and disturbances in anaphase I in them are the highest. The local varieties with respect to these characters are(More)
A protocol for raising highly frost-resistant winter wheat Triticum aestivum varieties has been developed. It is based on the transfer of the frost resistance trait from a wild wheat relative, intermediate wheatgrass (Agropyron glaucum). The protocol includes raising wheatgrass double haploid via anther culture, the selection of wheat genotypes that are(More)
The effect of gibberellic acid (GA) on total RNA and polysomal poly-[A]+-RNA synthesis in epicotylia and embryos of dwarf pea of two varieties differing in their physiological sensitivity to GA was studied. It was found that incubation with GA increases the accumulation of total RNA in pea epicotylia, var. "Pioner" and "Polzunok". The maximal stimulation of(More)
The effect of the preparations produced from needles and wood of various coniferous species on the activities of L-phenylalanine ammonia lyase (PAL; EC 4.3.1.5) and peroxidase (PO; EC 1.11.1.7), the enzymes involved in the development of plant defense response, was studied. It was demonstrated that treatment of brend wheat (Triticum aestivum L.) primary(More)
The effect of low light intensity (LI) on the period from sprouting to earing was studied in 12 cultivars of the spring common wheat under controlled conditions. Differences between cultivars with respect to their responses to LI (RLIs) were found both for those that were photoperiod-sensitive and those that were almost photoperiod-neutral. Specifically, a(More)
Three new cembrane alcohols have been synthesized and have been tested for growth-inhibiting activity together with a number of known compounds. By the selection and testing of cembrane derivatives a structural fragment has been found which, as is assumed, is responsible for the appearance of the growth-inhibiting activity of cembrane alcohols.
The effect of gibberellic acid (GA) on the size of polysomes (PS) and on the specific translation activity of epicotyl PS of two dwarf pea varieties was studied. It was shown that GA does not significantly alter the specific translation activity of PS and of mRNA isolated from dwarf pea epicotyl PS. Electrophoretic separation of the polypeptides synthesized(More)
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