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|Title: ||Evaluating the Yield Response of Maize (Zea mays L.) and Rice (Oryza sativa L.) to Future Climate Variability in The Gambia|
|Authors: ||Sonko, Ebrima|
Agodzo, Sampson K.
|Keywords: ||climate variability|
|Issue Date: ||15-Apr-2019|
|Publisher: ||Journal of Agricultural Studies|
|Abstract: ||Climate change and variability impact on staple food crops present a daunting challenge in the 21stcentury. The study assesses future climate variability on maize and rice yield over a 30-year period by comparing the outcomes under two GCM models, namely, CSIRO_RCP4.5and NOAA_RCP4.5of Australia’s Commonwealth Scientific and National Oceanic and Atmospheric Administration respectively. Historical climate data and yield data were used to establish correlations and then subsequently used to project future yields between 2021 and 2050. Using the average yield data for the period 1987-2016 as baseline yield data, future yield predictions for 2021-2030, 2031-2040 and 2041-2050 were then compared with the baseline data. The results showed that the future maize and rice yield would be vulnerable to climate variability with CSIRO_RCP4.5showing increase in maize yield whilst CSIRO_RCP4.5gives a better projection for rice yield. Furthermore, the results estimated the percentage mean yield gain for maize under CSIRO_RCP4.5and NOAA_RCP4.5by about 17 %, 31 % and 48 % for the period 2021-2030, 2031-2040 and 2041-2050 respectively. Mean rice yield lossess of -23 %, -19 % and -23 % were expected for the same period respectively. The study recommended the use of improved rice and maize cultivars to offset the negative effects of climate variability in future.|
|Description: ||An article published by Journal of Agricultural Studies and also available at doi:10.5296/jas.v7i2.14664|
|Appears in Collections:||College of Science|
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