VIEW ARTICLE

Toxicity of Crop Residue to Peanut Seed and Sclerotium rolfsii. H. W. Boyd, Department of Plant Pathology, University of Georgia, College of Agriculture Experiment Stations, Georgia Station, Experiment 30212, Present address of senior author: Department of Biology, Brevard College, Brevard, North Carolina 28712; D. V. Phillips, Department of Plant Pathology, University of Georgia, College of Agriculture Experiment Stations, Georgia Station, Experiment 30212. Phytopathology 63:70-71. Accepted for publication 24 July 1972. DOI: 10.1094/Phyto-63-70.

Water extracts of soil containing various crop residues inhibited radicle growth of germinating peanut seeds. Some extracts also inhibited mycelial growth from sclerotia of Sclerotium rolfsii. Extracts from soil at high or low soil moisture levels were more toxic than those from soil at an intermediate level after 3 weeks’ incubation. Extracts remained inhibitory to germinating seed after freezing, sterilization by filtration, or heating to 100 C.