Assessment of pre- and post-harvest anti-sprouting treatments to replace CIPC for potato storage

To avoid losses from sprouting during potato storage, the anti-sprouting agent chlorpropham [CIPC] has been widely used over past few decades. However, European Union recently decided not to authorize renewal of CIPC, prompting value chain find alternative treatments. We assessed for three years potential pre- and post-harvest treatments replace CIPC using four potato-processing varieties. Pre-harvest application maleic hydrazide [MH] applications 3-decen-2-one, 1,4-dimethylnapthalene [1,4-DMN] were performed following supplier’s recommendations. In addition, we evaluated 3-decen-2-one 1,4-DMN prolong efficacy pre-harvest MH treatment activity storage. All molecules significantly reduced after seven months storage compared with untreated control group. MH, displayed respectively 86.9 %; 77.9 %, 73.6 % 99.8 sprout weight 79.4 73.4 68.4 96.9 length. Our results suggest that in combination do bring additional benefit sprouting. Because differences dormancies could be observed between varieties, also showed is genotype-dependent, while effective equally all Applications led detectable residues tubers, no residue detected tubers treated this molecule (< LOQ). concluded are valuable alternatives processing potatoes.