28 Oct 2016 --- Improving yields of calorie-packed cassava crops in Sub Saharan Africa could be game changer for regions where the population is predicted to grow by 120 percent in the next 35 years. Despite the cassava being a staple food on the continent, yields have not significantly increased since 1961 and yet this vital carbohydrate-heavy crop accounts for 30 percent of a person’s daily calorie requirement.