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Translocation of Benomyl, Carboxin, and Chloroneb in Soybean Seedlings. P. N. Thapliyal, Former Graduate Student, Department of Plant Pathology, University of Illinois, Urbana 61801, Senior authorís address: Department of Plant Pathology, Uttar Pradesh Agricultural University, Pantnagar (Nainital), U.P., India; J. B. Sinclair, Professor, Department of Plant Pathology, University of Illinois, Urbana 61801. Phytopathology 61:1301-1302. DOI: 10.1094/Phyto-61-1301.

Use of 14C-labeled and nonlabeled fungicides as seed treatments of soybean showed that benomyl and chloroneb initially tended to localize in cotyledons, while carboxin did not. At 4 days after treatment, chloroneb was redistributed into the hypocotyl and cotyledons, whereas benomyl moved only into the epicotyl. Carboxin was distributed uniformly throughout the seedling, with higher concentrations in the epicotyl.

Additional keywords: systemic fungicides, Rhi-zoctonia solani, Penicillium atrovenetum.