Uttar Sona: A medium-slender grain rice variety suitable for cultivation during Boro-season

Uttar Sona has been developed from the cross between MTU 7029 * Gontra Bidhan-1. It was tested under All India Coordinated Rice Improvement Project (AICRIP) in IVT-Soro during 2013–14 and 2014–15. It out yielded national, regional, local and hybrid checks with a yield advantage of 18.57, 29.03, 16.36 and 6.63 per cent, respectively. Overall rank of Uttar Sona during the first year of testing was third in IVT Boro 2013–14 and it ranked sixth during the second year of testing in IVT-Boro 2014–15. The entry has also tested under IVT-E-TP during 2013. It ranked first in IVT-E-TP 2013.Uttar Sona already has been adopted by the farmers of Unishbisha G.P. (Mathabhanga-II block), Patlakhawa G.P. (Cooch Behar-II block), Bamunhat G.P. (Dinhata-II block) and Chotosalbari G.P. (Sitalkuchi block) of Cooch Behar district. It showed field resistance to major pest and diseases.