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Straw strength/maturity


JB Diego is similar in height to KWS Santiago and shows very good resistance to lodging. JB Diego is a relatively early maturing wheat variety.



Disease resistance


JB Diego shows good resistance to most diseases, including Fusarium.

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  • Versatile, popular variety for all rotations and locations  

  • High yields on heavy soils

  • Excellent disease resistance

  • Good resistance to Fusarium 

  • Exceptional quality

  • Stiff straw

  • Excellent sprouting resistance



JB Diego is an extremely versatile, proven hard Group 4 wheat –attributes which make it one of the most popular wheat varieties grown in the UK. JB Diego continues to offer growers high yields, stiffstraw, dependable and outstanding grain quality, and good disease



JB Diego produces consistent, reliable yields year on year, site to site and as a first and second wheat in all conditions, soil types and rotations. It displays excellent resistance to sprouting and finishes well, producing bold, bright grains with high specific weight. All of these attributes remain highly desirable on farm.




JB Diego performs well year on year, site on site, in all major feed wheat growing regions. It is suitable for all soil types and rotations and consistency has been key to its success and popularity on farm. It produces good yields as a second wheat and on heavy soils.



The grain quality of JB Diego is exceptional, with a very high specific weight, even in poor seasons, and a Hagberg as good as the top milling varieties. This opens up additional marketing opportunties and JB Diego is often used in grists. It produces a bold, attractive sample.

Products Trial seed Winter Wheat

Sowing date


JB Diego is a true winter type, showing good winter hardiness. It can be sown from mid September onwards until the end of January. Seed rates will depend on time of sowing, rotational position and prevailing conditions.


Note, JB Diego is susceptible to chlortoluron.

Source: AHDB RL 2019/20.

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