Study the Effect of Spraying Pre-Harvest Treatments by Chitosan and Some Compounds as Normal and Nano Forms on Wonderful Pomegranate Fruits Storability

Document Type : Original Article

Authors

Horticulture Department, Faculty of Agriculture, Benha University, Moshtohor, Toukh, Egypt.

10.21608/assjm.2025.345648.1329

Abstract

This research was carried out on a wonderful pomegranate cultivar at The National Research Centre, Researches and Production Station, at El-Nobaria district, El-Behaira Governorate, Egypt. Also, the post-harvest treatments were carried out in the laboratory at the Agricultural Development Systems (ADS) project, Faculty of Agriculture, Cairo University at (7°C – RH 90%) during two successive seasons (2020-2021 and 2021-2022). Wonderful cultivar pomegranate fruits in pre-harvest received seven applications of Chitosan 3g/L, Nano Chitosan 1.5 g/L, CaCl2    2g/L, Nano CaCl2   1g/L, K2CO3 1g/L, Nano K2CO3 0.5g/L and control. The results proved the applications of pre-harvest study on Wonderful cultivar pomegranate fruits recorded that using 1g/L Nano CaCl2 showed the highest average of the chemical and physical characteristics of the fruits in two seasons under cold storage conditions (7°c and RH 90%). On the other hand, the data on the interaction between the treatments and the storage periods was recorded as the minimum average results of POD enzyme when using Nano CaCl2 1g/L after four weeks under cold storage in both seasons under study.

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