Article ID: 24J15
The first early-maturing Japanese durum wheat cultivar, ‘Setodure’, released in 2016, is grown in western Japan, where harvest precedes the seasonal rains in June. However, ‘Setodure’ has insufficient resistance to preharvest sprouting and Fusarium head blight, and lacks the desired yellowness and texture. The Western Region Agricultural Research Center, NARO, has bred a new durum wheat cultivar, ‘Setodure R5’, anticipated to be a successor to ‘Setodure’. Variety registration was applied for in 2023. ‘Setodure R5’ was bred by the derived line method from a Mv-Pennedur/Setodure//Setodure population. ‘Setodure R5’ has early maturity like ‘Setodure’, but with a 10% lower yield and a 1% higher seed protein content. Its resistance to preharvest sprouting and Fusarium head blight and its yellow pigment content are superior to those of ‘Setodure’. The higher pasta making quality with higher strength and preferable texture of the boiled pasta of ‘Setodure R5’ (with Glu-B1h and LMW-2) compared with ‘Setodure’ (with Glu-B1d and LMW-1) are associated with its glutenin composition.
