Diseases

Septoria Blight of Wheat

Triticum L.

A complex fungal disease caused primarily by the pathogens Zymoseptoria tritici and Parastagonospora nodorum, which affects the above-ground organs of the plant. It is characterized by the formation of necrotic spots with black dots, known as pycnidia.

In the reference 9 varieties crop Wheat, where this is mentioned in the description.

The primary causal agents of the disease are Zymoseptoria tritici, which mainly affects the leaves, and Parastagonospora nodorum, which can infect all above-ground organs, including the spike. Light, yellow, or brown spots form on the affected tissues, eventually merging to cause necrosis. A key diagnostic feature is the formation of small black dots—pycnidia—in the center of the necrotic spots.

Genetic resistance of wheat to Septoria is controlled by a series of genes designated with the Stb prefix (from Stb1 to Stb19 and others). Breeding programs also take into account the influence of Rht plant height reduction genes on susceptibility expression, with a preference in commercial production for varieties with 'long-term non-specific' horizontal resistance to local pathogen populations.

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Triticum L. · Wheat

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Simeto

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Triticum L. · Wheat

1 record