Definition of smut ball in English:

smut ball

noun

词汇	smut ball
释义	Definition of smut ball in English: smut ball noun A grain of wheat or another cereal affected by smut. 患黑穗病的麦粒（或其他谷类） Example sentencesExamples Each kernel becomes a spore filled ‘smut ball ‘that is enclosed by a thin membrane until plant maturity.’ The stinking smuts attacking wheat replace the grain with dark smut balls containing the fungus spores. While smut balls may be removed by cleaning and recleaning seed, spores will still be carried on kernels. The smut balls on the cobs grow instead of the seeds giving the cob a grapelike appearance. In infected heads, light brown smut balls filled with dark brown spore masses replace all or part of the kernels.
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