Chitosan as a Potential Postharvest Treatment for Minimizing Rotscausing Decay of some Vegetable Fruits | ||
| Journal of Plant Protection and Pathology | ||
| Article 7, Volume 9, Issue 11, November 2018, Pages 755-758 PDF (348.83 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jppp.2018.44050 | ||
| Authors | ||
| Samira Abdelaziz1; S. T. El-Afifi2; M. El-Sheshtawi2 | ||
| 1Plant Pathology Dept. Faculty of Agriculture,Mansoura University , Mansoura,35516 Egypt | ||
| 2Vegetableand ornamentals Dept. Faculty of Agriculture,Mansoura University ,Mansoura,35516 Egypt | ||
| Abstract | ||
| Fungal pathogens such as Alternaria solani in tomato,Rhizopus stolonifer in strawberry, Botrytis cineara in pepper, Sclerotinia sclerotiorum in cucumber, and Sclerotium rolfsii in carrot causes many losses of postharvest decay of different fruits affect quality and quantity during the storage, marketing and handling. Its control has been and still largely based on the use fungicides. However, it is able to develop resistance to these chemicals very rapidly, so its control has become problematic.Chitosan (poly-β-(1-4)N-acetyl-d-glucosamine),was applied on maycelial growth of fungi and fruits, by dipping fruits in solution 0.05% and 0.2% concentrations for five minutes. Invitro, 0.2% Chitosan was the best concentration for inhibition of mycelial growth of postharvest fungi giving 75.7% inhibition of A. solani, followed by 76.9% of R.stolonfer,then 94.9% of S.rolfsii.While, the 0.05% chitosan gave moderate inhibition of A. solani and R. stolonifer and gave high inhibition on S. rofsii, while the two concentrations achived complete inhibition in B. cinerea and S. sclerotiorum. Chitosan treatments applied with acetic acid on fruits gave significant decrease in disease incidence and disease severity.Resultes indicate that chitosan treatments gives good treatmentfor reducing the maycelial growth of fungi and increasing control of postharvest decay of different fruits and roots. | ||
| Keywords | ||
| Chitosan; Postharvest; rot fruits; postharvest fungi; pathogenic fungi | ||
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