2025/09/30 by Nigussie, Tewodros Assefa, Belachew, Kasech, Assegid, Selamawit
#Deficit irrigation #Haricot bean #Irrigation interval
paper · doi:10.82127/kmbhps64
This study assessed the response of haricot bean to deficit irrigation and irrigation intervals (II) at Adami Tullu, Oromia, Ethiopia using a factorial experiment. The treatments were comprised of factorial combinations of two factors: four levels of water application (100%ETc, 85%ETc, 70%ETc, and 50%ETc) and three IIs (3 days, 5 days and 7 days). The experiment was replicated three times and the treatments were placed in each block in a randomized manner. Analyses of Variance (ANOVA) was used to analyze the results of the study and it showed highly significant (P < 0.05) differences among values of yield, above ground biomass and wateruse efficiency (WUE) under the considered treatments. The highest yield was obtained under 100%ETc with 3 days II; the lowest yield was obtained under 50%ETc with 7 days II. In terms of crop and field wateruse efficiencies (CWUE and FWUE, respectively), 50%ETc with 3 days II gave the highest CWUE and FWUE values (0.54kg/m3 and 0.38kg/m3, respectively). The lowest values of CWUE and FWUE were obtained under100%ETc with 7 days II (0.32kg/m3 and 0.26kg/m3, respectively). In general, 85%ETc with 5 days II could be recommended in the study area for optimum production under water scarce condition.