Impacts of Field Harvesting and Conservation Practices on the Physical Quality of Yam “Kponan” (Dioscorea cayenensis-rotundata) of Côte D’Ivoire

作     者：Yapo Hypolithe Kouadio Kouakou Nestor Kouassi Daouda Nimaga Yao Denis N’dri N’Guessan Georges Amani Yapo Hypolithe Kouadio;Kouakou Nestor Kouassi;Daouda Nimaga;Yao Denis N’dri;N’Guessan Georges Amani

作者机构：Laboratory of Food Biochemistry and Technology of Tropical Products Department of Food Science and Technology NANGUI ABROGOUA University Abidjan Cô te D’Ivoire Swiss Center for Scientific Research in Cô te d’Ivoire (CSRS-CI) Abidjan Cô te D’Ivoire Agronomic Forestry and Environmental Engineering Department University of Man Man Cô te D’Ivoire 

出 版 物：《Open Journal of Applied Sciences》 (应用科学（英文）)

年 卷 期：2022年第12卷第12期

页      面：1979-1994页

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

主　　题：“Kponan” Yam Post-Harvest Loss Cultivation Practices Conservation Practices Physical Quality 

摘      要：Yam “Kponan (Dioscorea cayenensis-rotundata) is a popular staple food in Côte d’Ivoire. However, its rapid decay during conservation prevents regular supply of markets. The objective of this study was therefore to assess the impact of field cultivation and conservation practices on some physical quality parameters of “Kponan. To this end, “Kponan yam from three production areas (Bondoukou, Bouna, Kouassi-Kouassikro) was cultivated in each area. At maturity, physical parameters of yams at harvest and after 3 months of storage in field were analyzed. The results showed that injury was the most significant deterioration in yam harvest. The rate of injured yams was highest for hoe-harvested in Kouassi-Kouassikro area (16.67% - 22.22%) regardless of the origin of the cuttings. The main damage observed after the 3 months of storage was rots (22.86% - 60.00%) and weight loss (8.57% - 42.86%). However, yams stored in pits in Bouna zone had less damage (40% - 48.87%) than those stored under straw huts in Bondoukou locality (100%) and at shade under a tree in Kouassi-Kouassikro area (100%). In conclusion, the physical quality of “Kponan in field is most affected by abusive use of herbicides during weeding and clearing, hoe harvesting and storage in the shade under a tree.