Citation
Karunaratne Anjani M., . and Kodikara N., . and Adikaram N. K. B., . (1996) A pesticide-free approach to control postharvest diseases of papaya Carica papaya L. increase shelf life. [Proceedings Paper]
Abstract
Several agrochemical-free postharvest treatments were tried on papaya fruits to control postharvest fungal diseases especially anthracnose Colletotrichum gloeosporioides C. capsici which had the highest frequency of occurrence. Postharvest hot water dipping single dip at 54.40C for 3 min or double dip at 420C for 30 min. transferred within 3 min to 490 C for 20 min reduced anthracnose by more than 30. Dipping fruits in a 0.2 aqueous solution of papaya latex reduced anthracnose by 35. The latex treatment was more effective when combined with the double dip hot water treatment. This combined treatment reduced anthracnose by 72. In vitro studies showed that hot water markedly reduced viability of conidia of several postharvest fungal pathogens of papaya. Papaya latex which possesses proteolytic activity disintegrated them completely. Latex also gave a shiny protective layer to the fruit surface. The combined treatment could therefore be recommended not only to reduce disease but also to improve the appearance of fruits.
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Abstract
Several agrochemical-free postharvest treatments were tried on papaya fruits to control postharvest fungal diseases especially anthracnose Colletotrichum gloeosporioides C. capsici which had the highest frequency of occurrence. Postharvest hot water dipping single dip at 54.40C for 3 min or double dip at 420C for 30 min. transferred within 3 min to 490 C for 20 min reduced anthracnose by more than 30. Dipping fruits in a 0.2 aqueous solution of papaya latex reduced anthracnose by 35. The latex treatment was more effective when combined with the double dip hot water treatment. This combined treatment reduced anthracnose by 72. In vitro studies showed that hot water markedly reduced viability of conidia of several postharvest fungal pathogens of papaya. Papaya latex which possesses proteolytic activity disintegrated them completely. Latex also gave a shiny protective layer to the fruit surface. The combined treatment could therefore be recommended not only to reduce disease but also to improve the appearance of fruits.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. mal SB 359 I61 1996 Vol. 2 Call Number |
| AGROVOC Term: | Postharvest control |
| AGROVOC Term: | Papayas |
| AGROVOC Term: | Carica papaya |
| AGROVOC Term: | Shelf life |
| AGROVOC Term: | Fungal diseases |
| AGROVOC Term: | Colletotrichum gloeosporioides |
| AGROVOC Term: | Hot water treatment |
| AGROVOC Term: | Latex |
| AGROVOC Term: | Conidia |
| AGROVOC Term: | Pathogens |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/12000 |
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