Relative Storability of High-Oil and Bt Corn Hybrids Compared to Conventional Hybrids

The objectives of this study were to compare the relative storability between five pairs of normal-oil content and high-oil content corn hybrids, and between five pairs of conventional and Bt corn hybrids, stored at 20 o C (68 o F) and at two different moisture values (19, and 22%, wet basis). Hybrids compared in a pair had similar parent genetics. Carbon dioxide production rate by fungi growing on corn kernels and subsequent grain dry matter loss (DML) to 0.5%, calculated using the carbohydrate oxidation model, were used as the index of deterioration. Change in the fat acidity levels of normal-oil content and high-oil corn hybrids due to fungal growth was determined, and used as a possible indicator of relative storability. - Continued on next page.