ISHS Acta Horticulturae 62: Symposium on Vegetable Storage
EVALUATION OF TOP DESICCANTS ON CURING OF DANVERS YELLOW GLOBE ONIONS AND SUBSEQUENT STORAGE QUALITY |
| Authors: | D.G. Richardson, C. Bubl, N.S. Mansour |
| Abstract:
Foliar sprays of Ethephon, Endothall, Paraquat, Stoddard Solvent, and Uniroyal N-252 were each applied at two concentrations, and at two dates 12 and 5 days before lifting to hasten field curing and desiccation of the leaves. Bulbs were then allowed to cure in the field for 8 days prior to storage at 40°F and 80% R.H. Progressive moisture loss in the neck region was monitored as well as sprouting and rots in storage. Significant differences in bulb-neck moisture contents were found, with Ethephon, Endothall, and Paraquat producing the driest necks. In general, the earlier sprays were more desiccating than the later sprays. However, neck moisture content produced by any of the sprays could not be correlated with storage losses. The low rates of Endothall, and Stoddard Solvent produced the least loss due to storage rots and Paraquat the greatest. | |
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