*2.4. Statistical Correlation between Durum Wheat Grain Yields and Growing Season Length with Temperature, Rainfall and Net Solar Radiation Changes*

In order to detect any possible sensitivity of durum wheat grain yield to the projected future CC, the Pearson correlation test [38] was applied between the time series of 30 years

of the Mexicali cultivar grain yields, simulated by AquaCrop for the Sc1, Sc2, and BP scenarios, with the time series of 30 years of the averages seasonal: mean temperatures (TS), cumulative precipitation (PS) and net incident solar radiation (NrS) projected under both the future CC scenarios and those recorded during BP. Furthermore, this test was applied between the time series of 30 years of the growing season length (GSL) of Mexicali cultivar simulated by AquaCrop for the Sc1, Sc2, and BP scenarios, with the time series of 30 years of TS, PS, and NrS, simulated by the ICHEC-KNMI climate model under the last three scenarios. Thus, this test allowed r to detect the impact of TS, PS, and NrS changes on the GSL. The season considered in this study is the period coinciding with the Mexicali cultivargrowing cycle.
