Periods and RCPs Sowing windows and yield deviations (%)
March  April May June
NT_rcp4.5 0.7 -8.6 -21.3 -22.7
NT_rcp8.5 9.2 -5.3 -23.7 -20.5
MT_rcp4.5 -3.4 -12.2 -20.6 -27.4
MT_rcp8.5 -9.1 -10.1 -22.2 -31.4
ET_rcp4.5 -13.0 -15.4 -20.6 -31.2
ET_rcp8.5 -15.8 -23.7 -33.4 -33.7
Historical 12.3 - -20.4 -4.8
Yield Deviation (%) 0.7 to -16% -5.3 to -24% -20.6 to -33.4% -20.5 to -34%
Where: NT, MT and ET stands’ for the near (2010-2039), mid (2040-2069) and end term (2070-2099) periods; RCP- representative concentration pathways.
Table 7: Impact of sowing date on future grain yield of sorghum.