Control of Peduncular Rot in Post-harvest Mango Fruits with Hydrotherapy and Refrigeration

Abstract

The objective of this study was to evaluate the effect of hydrotherapy associated with refrigeration on the control of peduncular rot in mango fruits (Mangifera indica) of the Tommy Atkins variety. For this, an experiment was set up in the phytopathology laboratory of the Agrarian Sciences Center of the Federal University of Alagoas - UFAL - Delza Gitaí Campus - Rio Largo - AL, from June to December 2018. Mango fruits, previously inoculated with L. theobromae (106 con.mL-1), were immersed in warm water at temperatures of 40, 45, 50 and 55°C for 1, 5 and 10 minutes and then placed under refrigeration for 5 days, then evaluated for disease severity. The results show that hydrotherapy associated with refrigeration is able to control peduncular rot in mango fruits. The temperatures of 50, 55 and 60ºC in the time of 9 minutes of fruit immersion showed 100% control of the disease, in the time of 1 minute only the temperature of 60ºC presented control superior to 90% of the disease, the temperatures of 45 , 50 and 55 presented control of 74.6, 76.2 and 89%, respectively. In the time of 5 minutes, the temperatures of 55 and 60ºC were the best with control superior to 90% of the disease. In all immersion times, the equation that best fit the data was the 3rd degree polynomial. The temperature of 40ºC, in all evaluated times, was the only one that presented control of the disease inferior to 20%.

Endophytic fungal assemblages of Zanthoxylum oxyphyllum Edgew. and their antimicrobial potential

“…However, recovery of endophytic fungi was found to be merely similar in PEA and MEA media and the least recovery was observed from WA medium. Earlier reports on isolation of endophytic fungi have also indicated that PDA is the most suitable media for isolation of such fungi from medicinal plants and showed highest recovery of endophytes (24,25). The maximum numbers of isolates were recovered from the samples collected from Boko and the least number of fungal colonies were isolated from the samples of Jonai.…”

“…The highest recovery of endophytes was obtained in PDA media (21.33%), followed by PEA (10%), MEA (9.33%) and the least were in WA media (8.67%). Maximum number of isolates were recovered from Boko (36), followed by Goalpara (25) and the least was from Jonai (13) (Table 1). The total colonizing frequency (CF%) of endophytic fungi in healthy leaf tissues of Z. oxyphyllum was found to be 49.33% out of which isolates belonging to the genus Colletotrichum showed the highest colonization frequency (25.34%), followed by non-sporulating isolates categorised as morphotypes of Mycelia sterilia (12.66%) and the genus Curvularia (6.67%) (Table 2).…”

Navigating the Path to Equitable and Sustainable Digital Agriculture among Small Farmers in Malaysia: A Comprehensive Review

“…There are significant expectations regarding the ongoing spread and transformative impact of digital technologies, given their extensive adoption in industries such as cropping and viticulture through precision farming over the past two decades (Eastwood et al, 2017a). Despite this, current scientific literature on digital agriculture has primarily focused on the technical aspects of these technologies to enhance agricultural practices and productivity (Rutten et al, 2013;Dick et al, 2019), as well as improving post-farmgate processes like postharvest quality monitoring within logistics and real-time traceability (Rodrigues et al, 2019). Numerous review articles have emerged discussing topics such as precision agriculture, big data analytics, drones, robotics, artificial intelligence, IoT, 3D printing, and the transformative potential these digital technologies hold for agricultural production systems, value chains, and food systems (Mogili and Deepak, 2018;Patrcio and Rieder, 2018;Zhao et al, 2019).…”

Chromatography and bioautography of endophytic fungi extracts of Uncaria tomentosa (Willd.) DC with antibacterial activity

“…DC belongs to the Rubiaceae family, it is a plant species of the Amazon region, popularly known as cat's claw (Alvarenga et al, 2018). This species has various medicinal properties such as anti-inflammatory (Yatoo et al, 2018), anticancer (Zhang et al, 2015), contraceptive (Nogueira et al, 2011), antiasthmatic (Azevedo et al, 2018), antiarthritic (Rajamanikyam et al, 2017, and immunostimulant (Baraya et al, 2017) activities, mainly antibacterial activity of endophytic fungi extracts, especially against Enterecoccus faecalis (Rodrigues et al, 2018), which is a Gram-positive bacterium, ubiquitous, highly resistant and commonly found in the root canal system (Qian- Wang et al, 2012). In the contemporary world, the indiscriminate use of antimicrobials is frequent, so they no longer have the same efficacy against a specific group of bacteria, known as superbugs or resistant bacteria (Yelin and Kishony, 2018).…”