Use of infrared thermometer for water stress detection in faba bean
2006
Ahmed , M.F. (University of Khartoum (Sudan). Faculty of Agriculture, Agronomy Dept.) | Dawi, I. (Agricultural Research Corporation (Sudan). Hudeiba Research Station) | Ibrahim, O.H. (Agricultural Research Corporation (Sudan). Hudeiba Research Station)
Response of two faba bean (Vicia faba L.) cultivars, viz H72 and BB7 to water stress was studied by subjecting them to water stress duration for 24 days at vegetative stage (S1), flowering or pod set (S2) and pod filling stage (S3) in a field experiment conducted for two successive seasons (1998-99 and 1999-00) at Hudeiba Research Station Farm. The different treatments were arranged in a factorial randomized complete block design. Vegetative growth attributes, reproductive structure abscission and crop phenology were examined. Soil moisture content, actual and potential daily evapotranspiration and crop coefficient values for different growth stages were monitored. Water use efficiency (WUE) was also calculated. The infrared thermometer was calibrated with the gravimetric method for soil moisture detection. The modified Penman equation was correlated with the canopy temperature difference (CTD). They were found to be well correlated (r = 0.94) and can be used for detection of water stress in faba bean
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