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Table 5 Combined effect of sowing dates and supplemental irrigation on grain yield of common bean in the baseline, 2030s and 2050s under RCP4.5 and RCP8.5 scenarios at Chefa

From: Future climate change impacts on common bean (Phaseolus vulgaris L.) phenology and yield with crop management options in Amhara Region, Ethiopia

Treatments Baseline yield % change 2030s 2050s
RCP 4.5 % change RCP
8.5
% change RCP 4.5 % change RCP
8.5
% change
SS + RF 1894 1746 1857 1726 1947  
SS + SI 2553 35 2657 53 2693 45 2780 61 2827 45
ES + RF 2306 22 1989 14 2118 14 2014 17 2320 19
ES + SI 3060 62 2936 68 2936 58 2940 70 3112 60
LS + RF 1479  − 22 1497  − 14 1607  − 13 1630  − 6 1633  − 16
LS + SI 2030 7.0 2230 28 2276 23 2289 33 2333 20
LSD (P = 0.05) 251   289   268   267   274  
  1. LSD: Least significant difference at 5% probability level: % Change: Percent change in grain yield with reference to the grain yield of the standard sowing date under rainfed. SS, ES and LS stand for standard, early and late sowing dates, respectively. RF and SI represent rainfed and supplemental irrigation, respectively