Authors:József Prokisch, Levente Czeglédi, Béla Kovács, Lajos Daróczi, Éva Széles, János Tamás, Frédéric Mabille and Zoltán Győri
Morphology, shape and surface area of wheat kernel are important factors for the characterisation of winter wheat (
) varieties in the milling industry. The surface area of kernel, due to the lack of a simple and reliable method, is not measured, but usually calculated from the length and diameter of kernel. Silver precipitation, a new original method has been developed for the measurement of kernel surface area. This method is suitable for measuring the surface of cereal seed in case of individual kernel or more kernels together. According to the silver precipitation method, metal silver was precipitated on the kernel surface. After this step the precipitated silver was dissolved from the kernel and the silver concentration in the solution was measured by inductively coupled plasma optical emission spectrometry. The concentration of silver in the solution is in close correlation with the surface area of kernel. The method was calibrated to the direct surface measurement of individual kernels and was compared to the calculated surface results.