The Agriculture–Nutrition–Income Nexus in Tonga: Is Postharvest Loss Undermining Horticulture Market Efficiency in Tonga?

The Kingdom of Tonga has one of the highest rates of diet-related non-communicable diseases (NCDs) in the world. Initiatives to promote pro-health dietary behaviour are possibly being compromised by poor or inconsistent consumer accessibility to affordable and safe fresh fruits and vegetables, refer...

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Main Authors: Steven J. R. Underhill, Soane Patolo, Yuchan Zhou, Sarah Burkhart
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Horticulturae
Subjects:
Online Access:https://www.mdpi.com/2311-7524/6/4/61
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author Steven J. R. Underhill
Soane Patolo
Yuchan Zhou
Sarah Burkhart
author_facet Steven J. R. Underhill
Soane Patolo
Yuchan Zhou
Sarah Burkhart
author_sort Steven J. R. Underhill
collection DOAJ
description The Kingdom of Tonga has one of the highest rates of diet-related non-communicable diseases (NCDs) in the world. Initiatives to promote pro-health dietary behaviour are possibly being compromised by poor or inconsistent consumer accessibility to affordable and safe fresh fruits and vegetables, referred to as the agriculture–nutrition–income nexus. While donors increasingly focus on nutrition-sensitive agriculture across the Pacific, there is little contemporary information concerning Tonga’s domestic horticultural distribution and market system, particularly in regards to food loss. This study surveyed 292 municipal and road-side vendors on Tongatapu and ‘Utu Vava’u Islands, with the aim of mapping and analyzing horticultural markets and farm supply, transport logistics, and quantifying postharvest practice and market loss. Tonga’s domestic horticultural market structure consists of a central municipal market and on Tongatapu Island, a supplementary network of urban and rural based road-side vendors. There is limited inter-island trade, with most farms located within 25 km of the central municipal market. Mean postharvest horticultural loss was very low, at 1.4% to 5.3%, with road-side vendors more vulnerable to loss. This level of loss was thought to reflect short intra-island transport distance, the type of crops being traded, and rapid market throughput, rather than a level of value chain efficiency. Vendors regulated market supply volume and price discounting and were the principal strategies to mitigate postharvest loss. While low levels of postharvest loss, short transport logistics, and fast market throughput are consistent with a relatively efficient horticulture market system, vendor practice may be impeding fresh fruit and vegetable accessibility.
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spelling doaj.art-b4ea8c9ee78a44d694722752d2dbbdf42023-11-20T15:44:54ZengMDPI AGHorticulturae2311-75242020-10-01646110.3390/horticulturae6040061The Agriculture–Nutrition–Income Nexus in Tonga: Is Postharvest Loss Undermining Horticulture Market Efficiency in Tonga?Steven J. R. Underhill0Soane Patolo1Yuchan Zhou2Sarah Burkhart3Australian Centre for Pacific Islands Research, University of the Sunshine Coast, Sippy Downs Queensland 4556, AustraliaMORDI Tonga Trust, Vaha’akolo Road, Haveluloto, Nuku’alofa P.O Box 996, TongaAustralian Centre for Pacific Islands Research, University of the Sunshine Coast, Sippy Downs Queensland 4556, AustraliaAustralian Centre for Pacific Islands Research, University of the Sunshine Coast, Sippy Downs Queensland 4556, AustraliaThe Kingdom of Tonga has one of the highest rates of diet-related non-communicable diseases (NCDs) in the world. Initiatives to promote pro-health dietary behaviour are possibly being compromised by poor or inconsistent consumer accessibility to affordable and safe fresh fruits and vegetables, referred to as the agriculture–nutrition–income nexus. While donors increasingly focus on nutrition-sensitive agriculture across the Pacific, there is little contemporary information concerning Tonga’s domestic horticultural distribution and market system, particularly in regards to food loss. This study surveyed 292 municipal and road-side vendors on Tongatapu and ‘Utu Vava’u Islands, with the aim of mapping and analyzing horticultural markets and farm supply, transport logistics, and quantifying postharvest practice and market loss. Tonga’s domestic horticultural market structure consists of a central municipal market and on Tongatapu Island, a supplementary network of urban and rural based road-side vendors. There is limited inter-island trade, with most farms located within 25 km of the central municipal market. Mean postharvest horticultural loss was very low, at 1.4% to 5.3%, with road-side vendors more vulnerable to loss. This level of loss was thought to reflect short intra-island transport distance, the type of crops being traded, and rapid market throughput, rather than a level of value chain efficiency. Vendors regulated market supply volume and price discounting and were the principal strategies to mitigate postharvest loss. While low levels of postharvest loss, short transport logistics, and fast market throughput are consistent with a relatively efficient horticulture market system, vendor practice may be impeding fresh fruit and vegetable accessibility.https://www.mdpi.com/2311-7524/6/4/61pacificagriculturefood securitynon-communicable diseases
spellingShingle Steven J. R. Underhill
Soane Patolo
Yuchan Zhou
Sarah Burkhart
The Agriculture–Nutrition–Income Nexus in Tonga: Is Postharvest Loss Undermining Horticulture Market Efficiency in Tonga?
Horticulturae
pacific
agriculture
food security
non-communicable diseases
title The Agriculture–Nutrition–Income Nexus in Tonga: Is Postharvest Loss Undermining Horticulture Market Efficiency in Tonga?
title_full The Agriculture–Nutrition–Income Nexus in Tonga: Is Postharvest Loss Undermining Horticulture Market Efficiency in Tonga?
title_fullStr The Agriculture–Nutrition–Income Nexus in Tonga: Is Postharvest Loss Undermining Horticulture Market Efficiency in Tonga?
title_full_unstemmed The Agriculture–Nutrition–Income Nexus in Tonga: Is Postharvest Loss Undermining Horticulture Market Efficiency in Tonga?
title_short The Agriculture–Nutrition–Income Nexus in Tonga: Is Postharvest Loss Undermining Horticulture Market Efficiency in Tonga?
title_sort agriculture nutrition income nexus in tonga is postharvest loss undermining horticulture market efficiency in tonga
topic pacific
agriculture
food security
non-communicable diseases
url https://www.mdpi.com/2311-7524/6/4/61
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