Abstract
Flooding is a frequent, and often unavoidable cause of stress, in vegetable production in Florida. Flooding results in hypoxia; that is, oxygen deficiency. This study was conducted with traditional Italian basil (Ocimum basilicum L.), cv. Genovese OG, treated with either a fast- or slow-release solid oxygen compound under flooding in a plastic house in Homestead, Florida. Application of fast- and slow-release oxygen compounds to flooded basil seedlings increased leaf chlorophyll content by 53% and 58%, respectively, compared to controls. Oxygen amendment increased redox potential of flooded soil 20-fold. Application of oxygen-containing compounds is a potentially effective method to alleviate hypoxic conditions in soil, which, in turn, enhances N use efficiency and improves crop productivity.
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