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vol. 8, nr. 4 (2006)
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Assessment of capability of SKCS for detection of fusarium head blight in wheat grain
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Ryszard Siuda1, Andrzej Grabowski1, Stanisław Grundas2
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1 Institute of Mathematics and Physics, University of Technology and Life Sciences, ul. Kaliskiego 7, 85-796 Bydgoszcz |
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2 Institute of Agrophysics, Polish Academy of Sciences, ul. Doświadczalna 4, 20-290 Lublin |
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vol. 8 (2006), nr. 4,
pp. 963-974
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abstract:
Single Kernel Characterization System (SKCS) measurements provided mass, diameter, moisture and hardness of single kernels from samples of grain of two wheat cultivars (Kris and Turnia). In both cultivars scabby (harvested from plots where inoculation with Fsarium culmorum was applied) and healthy (no inoculation) grain was measured. Prior to measurements, part of scabby grain was divided into several categories of infestation according to visual symptoms. SKCS results for all categories of infestation were subject to principal components analysis and linear discrimination analysis. It was found that the analysis distinguished healthy and infested grain, however Fisher’s coefficient equal to 3.56 showed the distinguishing was not enough to be used in practical applications. The same procedure applied to healthy and infested (without subdivision into categories of infestation) grain of both cultivars resulted in Fisher’s coefficient of 28.6. This result is promising and the applied procedure could be expected to be used in practice, provided the results will be confirmed for more cultivars of wheat.
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keywords:
single kernel physical properties, scab, fusarium head blight, wheat
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original in:
Polish
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