Post-harvest physiological deterioration in several cassava genotypes over sequential harvests and effect of pruning prior to harvest

Luna Jorge, Dufour Dominique, Tran Thierry, Pizarro Monica, Calle Fernando, Garcia Domínguez Moralba, Hurtado Iván M., Sanchez Teresa, Ceballos Hernan. 2021. Post-harvest physiological deterioration in several cassava genotypes over sequential harvests and effect of pruning prior to harvest. International Journal of Food Science and Technology, 56 (3), n.spéc. Consumers have their say: Assessing preferred quality traits of roots, tubers and cooking bananas, and implications for breeding : 1322-1332.

Url - autre : https://rtbfoods.cirad.fr/news/publi-ppd-ijfst

Quartile : Q2, Sujet : FOOD SCIENCE & TECHNOLOGY

Résumé : Consumers, traders and processors consider post‐harvest physiological deterioration (PPD) an important constraint. In Experiment 1, PPD was assessed three consecutive years in roots from five genotypes through seven storage days. PPD, scopoletin and dry matter content (DMC) was recorded during storage. Year, genotype, duration of storage and their interactions were significant. PPD was associated with duration of storage period, DMC and scopoletin contents. Ambient moisture and temperature during storage influenced PPD. In Experiment 2, roots from seven clones were harvested 10 months after planting from 30 consecutive biweekly plantings. PPD was assessed 0, 2 and 7 days after harvest. In 13 harvests, roots from plants pruned six days earlier were also evaluated. Results indicated large seasonal variation across genotypes. Pruning reduced PPD and DMC. Complex and contrasting relationships among the variables analysed were found. There is no uniform model explaining the relationship between PPD and the independent variables considered.

Mots-clés Agrovoc : manioc, physiologie après récolte, aptitude à la conservation, génotype, propriété physicochimique, qualité, facteur du milieu, facteur climatique

Mots-clés géographiques Agrovoc : Colombie

Mots-clés libres : Dry matter content, Fresh market, Post‐harvest losses, Scopoletin, Shelf life

Classification Agris : Q02 - Traitement et conservation des produits alimentaires

Champ stratégique Cirad : CTS 3 (2019-) - Systèmes alimentaires

Auteurs et affiliations

• Luna Jorge, CIAT (COL)
• Dufour Dominique, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-7794-8671
• Tran Thierry, CIRAD-PERSYST-UMR Qualisud (COL) ORCID: 0000-0002-9557-3340
• Pizarro Monica, CIAT (COL)
• Calle Fernando, CIAT (COL)
• Garcia Domínguez Moralba, CIAT (COL)
• Hurtado Iván M., CGIAR (COL)
• Sanchez Teresa, CIAT (COL)
• Ceballos Hernan, CIAT (COL) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/596328/)

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