Abstract:
Development of the wheat plant is influenced by sowing date, irrigation, soil type, pest and weed
control, but also by weather factors. The objective was to analyze the temperatures that prevailed
in the Yaqui and Mayo Valleys during the 2019-2020 wheat season. Temperature data were
obtained from the automated meteorological station network in Sonora state comprising 22
stations in the Yaqui Valley and 13 in the Mayo Valley. The data were collected on a 10 minute
frequency, every hour, and daily. The average of each weather station was calculated, taking into
consideration the maximum and minimum temperature, the cold units and the heat units for each
season. The data were captured in excel with the daily-hourly records from all the stations.
During the wheat season, the temperature ranged from 1.4°C to 35.6°C with an average of
17.8°C; 385 and 439 cold units were recorded in the Yaqui and Mayo Valleys, respectively.
Most of the weather stations in the Mayo Valley had a similar pattern of cold unit ocurrence
which were around 400, with the exception of Capetamaya which registered more than 700. In
the Yaqui Valley, there were six weather stations that recorded around 400 cold units, five with
more than 500, and only one with more than 600 cold units |
