Sustainable management of fusarium rots in melons: A dual strategy combining thermotherapy and 1-MCP

IF 3.3 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2026-04-01 Epub Date: 2025-12-15 DOI:10.1016/j.cropro.2025.107522

Breno de H. Almeida , Maria H.D. Costa , Luiz F.B. Evangelista , Rebeca M.S. Frutuoso , Atarissis M. Dias , Jarlan L.S. Silva , Daniel J. Silva , Jackson T. Lobo , Washington da Silva , Márcia M.Q. Ambrósio

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引用次数: 0

Abstract

Brazil is a leading producer and exporter of Galia melon (Cucumis melo L.), a variety renowned for its exceptional sensory qualities. However, postharvest diseases caused by Fusarium spp. Lead to significant economic losses, estimated at up to US$22 million annually. The current reliance on fungicides, such as Imazalil, is unsustainable due to regulatory restrictions and the increasing fungal resistance to current chemistry, which calls for the development of alternative control strategies. In this study, we investigated the effectiveness of thermotherapy combined with ripening phytoregulators for managing rots caused by F. falciforme and F. sulawesiense in Galia melons. Inoculated fruits underwent eight different treatments [Mock (control), HWT (hot water treatment), 1-MCP (1-methylcyclopropene), HWT + 1-MCP, GA (gibberellin), HWT + GA, GRAD (Graduate A+®), and HWT + GRAD] and were stored for 20 days at 10 ± 2 °C. We evaluated disease severity, melon fruit physicochemical parameters, and the activity of plant defense enzymes. Most treatments significantly reduced rot severity compared to the control. Notably, Graduate A+® achieved up to a 72.9 % reduction, and its efficacy was enhanced when combined with thermotherapy. Furthermore, 1- methylcyclopropene (1-MCP) treatment, alone and with thermotherapy, preserved postharvest quality and enhanced defense-related enzyme activity. These findings suggest that the combination of thermotherapy and 1-MCP represents a promising and sustainable approach to reducing Fusarium rot in Galia melons destined for export, with no associated regulatory risks.

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瓜类枯萎病的可持续治理：热疗与1-MCP相结合的双重策略

巴西是加利亚甜瓜（Cucumis melo L.）的主要生产国和出口国，该品种以其独特的感官品质而闻名。然而，镰刀菌引起的采后疾病造成重大的经济损失，估计每年高达2200万美元。由于监管限制和真菌对现有化学物质的抗性日益增强，目前对杀菌剂（如Imazalil）的依赖是不可持续的，这要求开发替代控制策略。在本研究中，我们研究了热疗联合成熟植物调节剂对甜瓜镰状镰刀菌和苏拉韦西镰刀菌腐烂的治理效果。接种后的果实经过8种不同处理[Mock（对照）、HWT（热水处理）、1-MCP（1-甲基环丙烯）、HWT + 1-MCP、GA（赤霉素）、HWT + GA、GRAD （Graduate A+®）和HWT + GRAD]，在10±2°C下保存20天。我们评估了病害的严重程度、甜瓜果实的理化参数和植物防御酶的活性。与对照相比，大多数处理显著降低了腐烂严重程度。值得注意的是，Graduate A+®实现了高达72.9%的减少，并且当与热疗法结合时，其疗效得到增强。此外，1-甲基环丙烯（1- mcp）处理，单独或结合热疗，可以保持采后品质，增强防御相关酶的活性。这些研究结果表明，结合热疗法和1-MCP是一种有前途的、可持续的方法，可以减少出口甜瓜的镰刀菌腐烂，而且没有相关的监管风险。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.