Is it important – black point of wheat grains? | Melnais dīglis kviešu graudos – vai tas ir nozīmīgi?
2018
Bankina, B., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture | Bimsteine, G., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture | Neusa-Luca, I., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture | Lapina, L., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture
Black point of wheat grains was often observed during wheat harvest during this summer (2018). Several grain producers asked to identify reasons and evaluate harmfulness of this disease. Black point of wheat grains can be caused by different microorganisms, mainly fungi. It is a widespread disease, but its harmfulness is not estimated. The aim of this study was to identify causal agents of black point. Grains of spring wheat cultivar ‘Granny’ from production field were used for examination. Fungi were isolated on the Potato dextrose agar and identified accordingly with morphological traits of colonies and spores’ sizes. Black point was caused by fungi from genera Alternaria, Cladosporium, Bipolaris, Fusarium and Epicoccum. Further investigations are necessary to evaluate impact of this disease on grain germination ability and health of seedlings.
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