Influence of agroclimatic factors on the ontogenesis of sorghum bicolor in the conditions of the south-eastern part of Belarus

Authors

  • Anastasia A. Mileiko Institute of Radiobiology of NAS of Belarus image/svg+xml , Institute of Radiobiology, National Academy of Sciences of Belarus
  • Galina V. Sedukova Institute of Radiobiology, National Academy of Sciences of Belarus

Keywords:

sorghum bicolor, growing season, ontogenesis, yield, climate change, sum of active temperatures, precipitation
Supporting Agencies
Belarusian Republican Foundation for Basic Research , National Academy of Sciences of Belarus

Abstract

This article examines changes in agroclimatic conditions during the 2016-2025 growing season in the southeastern Republic of Belarus. It presents the results of a study examining the influence of air temperature and precipitation on the rate of grain sorghum development on sod-podzolic sandy loam soils. It has been established that the phenological development of grain sorghum and its productivity are in direct linear dependence on air temperature and the amount of precipitation during the growing season of plants. During the germination, tillering, and booting stages, sorghum plants are most responsive to increased temperature and precipitation.

It was noted that the yield of green mass harvested both at the initial panicle emergence stage and at the milky-wax stage of grain ripeness is significantly higher with a higher sum of active temperatures. The growing season of grain sorghum lasts 141-150 days when sown early, 136-145 days when sown in the early second ten-day period of May, 119-131 days when sown in the third ten-day period of May, and 105-124 days when sown late. The agroclimatic conditions of southeastern Belarus allow for high yields of green mass from grain sorghum, which can be grown as an insurance crop to provide forage in arid conditions.

Author Biographies

  • Anastasia A. Mileiko, Institute of Radiobiology of NAS of Belarus, Institute of Radiobiology, National Academy of Sciences of Belarus

    graduate student; junior researcher at the laboratory of agroecology and mass analysis

  • Galina V. Sedukova, Institute of Radiobiology, National Academy of Sciences of Belarus

    PhD (agriculture), docent; head of the laboratory of agroecology and mass analysis

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Published

2026-11-11

Issue

No. 3 (2026): ЖУРНАЛ БЕЛОРУССКОГО ГОСУДАРСТВЕННОГО УНИВЕРСИТЕТА ЭКОЛОГИЯ

Section

Applied ecology (medical ecology, industrial ecology, agrarian ecology, forestry ecology, water management ecology, etc.)

How to Cite

[1]
Mileiko, A.A. and Sedukova, G.V. 2026. Influence of agroclimatic factors on the ontogenesis of sorghum bicolor in the conditions of the south-eastern part of Belarus. Journal of the Belarusian State University. Ecology. 3 (Nov. 2026).