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Levels of potassium in the stover and the ear and of strontium in the stover of double-cross corn hybrids, Zea mays L., were significantly correlated with the average level of accumulation of single-cross parents. Similar correlations for phosphorus, calcium, magnesium, and zinc were not significant.
Key Words: Corn Strontium Potassium
2 Former Instructor (now Manager, Technical Services, Funk Bros. Seed Co., Bloomington, 111. 61701) and Professor of Agronomy, Pennsylvania State University, University Park, Penn. 16802.
Received for publication October 27, 1969.
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