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Horticultural Chain Management for Eastern and Southern Africa: A Theoretical Manual

image of Horticultural Chain Management for Eastern and Southern Africa: A Theoretical Manual
Horticultural Chain Management for Eastern and Southern Africa is a two-volume work designed to help trainers develop suitable materials to assist small farmers and producers to supply high quality horticultural produce for sale.



This Practical Manual complements the theoretical manual and provides the trainer with simple practical tasks that reinforce and enhance comprehension of theoretical training. The whole package is structured to provide the trainer with technical background and reference materials that allow customised training in accordance with the needs of the target group to be trained.

English

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Detection of post-harvest pathogens

Post-harvest pathogens are saprophytes and infect fruit and vegetables through natural and artificial openings (wounds). As they grow they break down the cells of the fruits or vegetables, causing them to become limp or water-soaked. This creates the opportunity for other saprophytes to invade and grow on the nutritious plant sap/juices. The isolation of a specific post-harvest pathogen from very rotten fruit is challenging, given the possibility of isolating a number of other saprophytes in the process. The surface of the produce should be disinfected prior to attempting to isolate any organisms. If, however, the produce is beyond recognition, the disinfectant will negatively impact on post-harvest pathogens in the fruit or vegetable.

English

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