additional requirements, this has been postponed for at least three years’, Hofman explains. Glyn Harper of the British AHDB will explain how growers can use Ethylene for the storage of industrial potatoes. This is a new study because, up to now, Ethylene wasn‘t considered suitable for the storage of chip and crisp potatoes. Elaborating on this storage theme, the Belgian research worker Kurt Demeulemeester of Inagro briefly discussed the possibilities of reducing the input of CIPC and researching whether alternative products could reduce Chlorpropham residues. This is a study in Belgium that is widely supported by the sector. As to the distribution of sprouting inhibitors, researcher Adrian Briddon of the British organisation AHDB has studied the middle-box distribution of CIPC in box storage. This study was necessary because, in the UK, the standard limits of the product in storehouses were exceeded. The poor distribution can be avoided by improving the distribution of air. ‘It wasn’t quite as it should be in the UK, but big improvements have now been introduced in most storehouses in recent years. Many storehouses in the Netherlands already have better air distribution so that CIPC is better spread. It’s important that the sector takes this seriously and uses the product carefully and wisely. In the UK, we’ve set up a CIPC stewardship group with the whole industry. The group includes people who decide about admission, but also the contractors who work with CIPC, the crisps and chips industries, the packagers and the AHDB. It’s a powerful group that communicates with each other. All in all, in the UK, three contractors carry out 80 percent of the work. This means that you can act quickly and give well-considered advice. With relatively simple methods, growers can improve the air flow in the storage unit and further optimise the distribution of the sprout inhibitor. This is important because 50 percent of the potatoes in the UK are stored in boxes. The percentage of box storage is also increasing worldwide’, Hofman explains. Following on from this subject, Nic Grubben of Omnivent will shed light on the distribution of air in box storage units and on how you can optimise the storage climate and the quality of potatoes for both the processing industry and the table potato market. Furthermore, Adrian Cunningtom of AHDB has carried out research into the loss of air from the storehouse, which is definitely an important study for storehouses with cooling. Growers often regard their mechanical cooling systems as a type of closed refrigerator, but the reality is different. Besides hatches and doors, a storehouse also has gaps and cracks. Cunnington has a good picture of air loss in storehouses. He’ll show that this air loss compares with an open door. In his talk he’ll show the Audience what this means for the storage process. Electronic nose detects Fusarium As to the distribution of sprouting inhibitors, researcher Adrian Briddon of the British AHDB organisation has studied the middle-box distribution of CIPC in box storage. As far as the technology in post-harvest management is concerned, a researcher at Warwick University in the UK will show how you can measure certain substances in the air with an apparatus. He has shown that you can detect Fusarium with Potato World 2016 • number 2 37 Pagina 36
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