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Responses of Coker 65-20 and Blueboy varieties of wheat (Triticum aestivum L.) to a single foliar application of 2-chloroethyltrimethyl-ammonium chloride (CCC) were investigated in field experiments at Mississippi State, Miss. In spite of the general reduction in plant height and lodging, the results did not support the hypothesis that a single foliar application of CCC would enable the use of more than 100 kg/ha N to significantly increase grain yield. When severe lodging occurred due to adverse climatic factors, CCC had no beneficial effects, whereas a mechanical support significantly (.01) increased yield 40%.
Key Words: Chlormequat Cycocel Chlorocholine Chloride CCC Triticum spp. Plant growth regulator
2 Research Soil Scientists, USDA, Mississippi State, Miss.; Assistant Agronomist, Department of Agronomy (presently, Assistant Agronomist, Department of Agriculture, Southeast Missouri State College, Cape Girardeau. Mo.); Associate Agronomist, and Graduate Research Assistant, Department of Agronomy, Mississippi State, Miss., respectively.
Received for publication July 5, 1972.
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