UDC 632.95:633.11
DOI 10.36461/NP.2026.77.1.005

DEVELOPMENT OF CULTIVAR-SPECIFIC AGRONOMIC PRACTICES FOR THE NEW WINTER WHEAT CULTIVAR MANAU IN THE FOOTHILL ZONE OF THE CENTRAL CAUCASUS
I. R. Manukyan, Candidate of Biological Sciences, Associate Professor
North Caucasus Research Institute of Mountain and Foothill Agriculture of the Federal State Scientific
Center "Vladikavkaz Scientific Center of the Russian Academy of Sciences", SCNIIMFSA VSC RAS, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Plant breeders develop cultivars and cultivar-specific agronomic practices to enhance the potential productivity of agricultural crops. This approach is grounded in the principle that the genetic potential of a cultivar and its response to cultivation conditions jointly determine the actual level of crop productivity. The aim of this study was to develop elements of cultivar-specific agronomy for the new soft winter wheat (Triticum aestivum L.) cultivar Manau under the conditions of the foothill zone of the Central Caucasus, with the objective of improving grain productivity and quality. Research objectives included: monitoring the phytosanitary status of soft winter wheat crops, identifying dominant phytopathogen species, and as-sessing the biological efficacy of fungicides.
Dominant pathogens affecting grain yield and quality were identified in the region. These included septoria leaf blotch, pyrenophora leaf spot, brown rust (Puccinia triticina), yellow rust (Puccinia striiform-is), and Fusarium head blight. The greatest reduction in disease development was achieved through the application of Kolosal Pro, SC (tebuconazole + prothioconazole) at growth stage T1 (first node) and Pro-saro, EC (prothioconazole + tebuconazole) at stage T2 (flag leaf fully emerged). The biological efficacy of this treatment regimen reached 94.0 %. Under this variant, grain yield increased by 54.0 % to 5.7 t ha⁻¹, and thousand-grain weight increased by 15.0 %. These findings will contribute to the development of sci-entifically substantiated recommendations for cultivar-specific agronomic management of cv. Manau un-der the conditions of the foothill zone of the Central Caucasus.
Keywords: cultivar-specific agronomy, soft winter wheat, disease, fungicide, Fusarium head blight, biological efficacy.

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