Uganda's agriculture sector, contributing 32% to the country's GDP and 85% of exports, is facing challenges such as declining soil fertility, climate change effects, and pests. To combat these issues, the National Agriculture Research Organisation (NARO) has developed drought-tolerant and disease-resistant crop varieties. These include iron-rich beans and vitamin A-rich sweet potatoes, as well as cassava varieties resistant to diseases awaiting regulation. NARO also uses biotechnology to develop cassava and tomato varieties, and has introduced drought-tolerant maize and sorghum varieties. The new green gram varieties, released by NaSARRI, are early maturing, drought-tolerant, and have higher yields.