Authors:
FÉLIX-VALENCIA Pedro,ORTIZ-ENRÍQUEZ José Eliseo, FUENTES-DÁVILA Guillermo, MUÑOZ-VALENZUELA Sergio, PADILLA-VALENZUELA Isidoro, and TORRES-CRUZ María Monserrat ,Mexico |
Abstract:
The fructification period of pinto bean cultivar BillZ was evaluated in three commercial fields, in
relation to the effect of drip irrigation with the temperature regime within the crop, in the Yaqui
Valley, Sonora, Mexico, during the spring season 2020. Five warm periods with a maximum
temperature range from 36 to 40°C were recorded from the flowering stage to completely filled
grain. Maturity to harvest was reduced between 6 to 10 days with respect to the normal of 100
days. All fields recorded between 10.4 and 27% of pods without grain, and those with grains
showed variable weight. The bean field with the highest grain yield had an average thermic level
of 32 to 33°C; as the temperature rose above this level with continuous 8 hour periods (10:00
am-18:00 pm), the highest detachment of flowers and pods shorter than 2 cm were recorded.
With respect to the theoretical water use by evapotranspiration, the sheets of water applied by the
farmer were sufficient with the exception of the field with a theoretical irrigation deficit between
27 and 33%. The interaction of temperature with irrigation water sheets was highly significant
for all variables; the highest grain yield was attributable to the well programed irrigation and to a
minor differential average temperature of 1.9°C during the flowering period to harvest. |
