More than 32,000 new plant varieties developed by 193 research institutes and companies from China and abroad were displayed recently at an agricultural expo in Yinchuan, the capital of the Ningxia Hui autonomous region in Northwest China. Designated by the former Ministry of Agriculture - renamed as the Ministry of Agriculture and Rural Affairs - as a key vegetable plantation area, Ningxia is home to a batch of high-quality agro-product brands featuring geographical indications - which prove the origins of the products - with 70 percent of them sold outside of Ningxia.