| survey of 1977 crop year preharvest corn for vomitoxin. | fifty-two preharvest corn samples were collected in mid-october 1977 from 26 farms in a four-county area of northwest ohio. vomitoxin ranging from 0.5 to 10 microgram/g was found in 24 of the samples. analysis for vomitoxin was by gas-liquid chromatography. preceding harvest in northwest ohio, unusual wet conditions prevailed, making it favorable for fusarium growth. gibberella zeae-infected kernels ranged from 2 to 50% of the kernels analyzed for 44 corn samples, and 8 corn samples showed no in ... | 1978 | 736543 |