RESULTS OF BUILDING A PRODUCTION MODEL OF PHO CUONG SWEET POTATO VARIETY RESTORED IN DUC PHO DISTRICT, QUANG NGAI PROVINCE

Abstract

From 2020 to 2024, the Plant Resources Center has implemented contents under the task "Evaluating genetic potential and developing sweet potato genetic resources in Vietnam", including evaluation and selection. The sweet potato variety Pho Cuong is the leading local variety in Pho Cuong commune, Duc Pho district, Quang Ngai province. The 2024 Pho Cuong sweet potato variety production model results show that the variety grows and develops very well and is slightly resistant to weevil (1.1%) and virus (0%), while the untreated variety is infected weevil and viruses are 2.7% and 9%, respectively. Regarding productivity, the restored Pho Cuong sweet potato variety yields 17.5 tons/ha, 37.8% higher than the untreated Pho Cuong sweet potato variety - which only yields 12.7 tons/ha. With high product prices, the economic efficiency of the production model of the coated Pho Cuong sweet potato variety is higher than that of the untreated sweet potato control variety, with a net profit of 107.476 million VND/ha, compared to 74.396 million VND/hectare. The net profit hectares of the Pho Cuong sweet potato variety farming model have yet to recover.