**7. Abbreviations**

ABA; Abscisic acid

ACRE; Agriculture and Climate Risk Enterprise Ltd

AP or APX; Ascorbate peroxidase

CAT; Catalase

CGIAR; Consultative Group for International Agricultural Research

CSA; Central Statistical Agency (Ethiopia)

Ec-apx1; Ascorbate peroxidase

EIB; Ethiopian Institute of Biodiversity

FAO; Food and Agriculture Organization of the United Nations

FAOSTAT; Food and Agriculture Organization Statistics

GR; Glutathione reductase

ICRISAT; International Crops Research Institute for Semi-Arid Tropics

LEA; Late embryogenesis abundant

MDAR; Monodehydro-ascorbate reductase

Mt1D:; Mannitol dehydrogenase *Pg*CA; β-carbonic anhydrase POD; Peroxidase PVC; Polyvinylchloride ROS; Reactive oxygen species SFSA; Syngenta Foundation for Sustainable Agriculture SiARDP; *Setaria italica* ABA-responsive DREB-binding protein SiLEA14; *Setaria italica* late embryogenesis abundant 14 SOD; Superoxide dismutase UN; United Nations WRSI; Water Requirement Satisfaction Index.
