The sap or latex injury in mango reduces fruit quality as it causes skin blemish during harvesting and postharvest handling. Sap volume and visual quality of ‘Carabao’ mango as affected by different harvest times during the day (every hour from 7:00 AM to 5:00 PM), delay in cutting (hourly up to 6 h) of the pedicel at either the pedicel base or at the abscission zone and different desapping agents applied 1 or 7 h from harvest were assessed. Sap injury was assessed by allowing the sap to flow on the fruit after re-cutting the pedicel at the abscission zone. Sap volume was measured during harvesting while sap injury, days to table ripe stage, visual quality, weight loss, degree of anthracnose and stem end rot were assessed during fruit storage. The experiments were laid out using the completely randomized design. Sap volume ranged from 0.06 to 0.25 mL fruit-1. The lowest sap volume was recorded in fruit harvested in the afternoon between 1:00 and 5:00 PM, while the highest volume was noted at 7:00 and 10:00 AM. The relative humidity of the air was highest at 7:00 AM. Better quality at table ripe stage was noted in mango fruit harvested at 1:00 - 2:00 and 4:00 - 5:00 PM. Sap injury at different harvest times did not vary. The delay in the destemming up to 6 h and the location of cut or pedicel length did not affect sap volume and fruit quality. However, the cutting of the pedicel at the abscission zone rather than at the pedicel base tended to result in better quality, which helped delay fruit ripening. All desapping treatments, such as 1.0 % alum, 1.0 % detergent, 0.5 % lime [Ca(OH)2], and water, could control sap injury. Untreated fruit showed longer shelf life due to a lower degree of anthracnose. Stem-end rot did vary among desapping agents. Among the desapping treatments, water is found to reduce sap damage better. Harvesting later in the day, cutting at the abscission zone, and washing mangoes with water can reduce sap or latex damage in ‘Carabao’ mango.
A safe option to address some production problems such as insect damage, diseases, and blemishes in mango is fruit bagging. ‘Carabao’ mango fruit at 55 days after flower induction (DAFI) were bagged with three bagging materials: old newspaper (control), spun-bound high density polyethylene (SHDPE, DuPont™ Tyvek® Homewrap, 0.15 mm thick) and non-woven spunbound polypropylene (NSPP, 0.03mm thick). Bagged mango fruit were harvested at 118 DAFI. At harvest, NSPP bagging material resulted in better quality of fruit compared to newspaper and SHDPE. Advanced color change was observed both in newspaper and SHDPE at 4 and 8 days after harvest (DAH). Compared to newspaper and SHDPE, slower color change was observed in fruit bagged with NSPP up to 8 DAH. The degree of anthracnose infection did not differ among bagging materials. Higher degree of stem end rot (SER) infection was noted in newspaper at table ripe stage (TRS). Onset of SER was delayed by about a day in NSPP and SHDPE. At 8 DAH, lowest weight loss was observed in mango bagged with newspaper. Slightly longer shelf life of about a day (0.72 d) was noted in NSPP-bagged fruit. Shelf life was reduced in newspaper which may be attributed to fruit reaching TRS faster by a day and earlier onset of SER. Total soluble solids in fruit bagged with SHDPE was lower upon harvest and during storage at 8 days while firmness did not vary among bagging materials. NSPP showed potential as bagging material that can maintain better quality of ‘Carabao’ mango fruit.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.