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Table 1.

Main meteorological indicators of June and their relation to the yield of barleycorn grains

Calendar period Meteorological indicator Years Correlation index of yield and weather
2015 2016 2017 Agat Povolzhsky 22
June Temperature, ℃ 23.3 19.9 16.5 – 0.822-1.000 – 0.894-1.000
Weather elements, mm 0.5 12.8 129.8 0.504-0.993 0.863-1.000
Hydrothermal index 0.01 0.21 2.62 0.490-0. 991 0.855-1.000

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