Effect of ethylene inhibitors on regulate ripening of avocado fruits "Fuerte" [electronic resource].

Includes references.

This study was carried out during 2013 and 2014 seasons on "Fuerte" avocados trees grown in clay loam soil under surface irrigation at avocado orchard belonging to Horticulture Research Station at EI-Kanater EI-Khayira, Kalyubeia Governorate, Egypt. Twenty one trees were selected to study the effect of foliar application of calcium chloride at 1 and 2%, silver nitrate at100 and 200J1M and cobalt sulphate at 100UM and 200UM and all materials were sprayed at 15 days before haNest on ripening behavior of fruits, marketable life and physicalchemical properties of "Fuerte" avocado. The results revealed that 2 % CaCl2 significantly increased the number of days taken for ripening of fruits, led to a reduction of weight loss, percentage of discarded fruits, respiration rate, electrolyte leakage %, total phenols and marketable life of fruits compared to control. This treatment was effective in minimizing respiration rate gradually during cold storage which acquire the fruits the chilling injury tolerance. While, the untreated fruits and the treatment of AgN03 with the two concentrations caused the highest values of weight loss and discarded fruits due to increasing of respiration rate, electrolyte leakage % and total phenols. Key words: Avocado, Ethylene inhibitors, Storage, Ripening, Physical and chemical properties.

Summary in Arabic.

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