Effects of ethylene and 1-MCP on the quality and storage life of strawberries

Strawberry quality declines rapidly after harvest. Deterioration may be accelerated by ethylene and is potentially increased, decreased or unaffected by the ethylene inhibitor 1-MCP (1-methylcyclopropene). We have examined the effects of 0.01, 0.05, 0.1 and 1 m ll 1 of ethylene and 0.01, 0.1, and 1.0 m ll 1 1-MCP on the quality attributes and respiration rates of strawberries stored at 0 or 5 8C. Ethylene did not affect the rate of rot development. However, calyx quality was significantly reduced by exposure to 0.1 or 1.0 m ll 1 ethylene. Treatment with 1 m ll 1 1-MCP protected the calyx tissue from these effects. Exposure of strawberries to 0.01, 0.1 or 1.0 m ll 1 1-MCP did not affect overall fruit acceptability but did slightly increase the rate of rot development. 1-MCP treatment reduced ethylene production by the fruit. Increased production of CO2 by 1-MCP treated fruit was associated with the earlier onset of rots. Although the results suggest that blocking ethylene perception interferes with disease resistance in strawberries, there was only a small effect on total storage life. It was concluded that neither the removal of low levels of ethylene from the storage environment nor the treatment with 1-MCP are likely to be cost effective methods of extending strawberry storage life. It was concluded that neither removing low levels of ethylene from the storage environment nor treating with 1-MCP are likely to be cost-effective methods of extending storage life. # 2002 Elsevier Science B.V. All rights reserved.

[1]  M. K. El-Kazzaz,et al.  Effect of Different Atmospheres on Postharvest Decay and Quality of Fresh Strawberries , 1983 .

[2]  R. Wills.  ENHANCEMENT OF SENESCENCE IN NON-CLIMACTERIC FRUIT AND VEGETABLES BY LOW ETHYLENE LEVELS , 1998 .

[3]  P. Navarro,et al.  Effects of precooling, packaging film, modified atmosphere and ethylene absorber on the quality of refrigerated Chandler and Douglas strawberries , 1993 .

[4]  E. Hislop,et al.  II.2 – The Involvement of Ethylene in Plant Diseases , 1973 .

[5]  D. Joyce,et al.  1-Methylcyclopropene treatment affects strawberry fruit decay , 2001 .

[6]  Adel A. Kader,et al.  Post Harvest Technology of Horticultural Crops , 1991 .

[7]  D. Burmeister,et al.  Responses of strawberry fruit to 1-Methylcyclopropene (1-MCP) and ethylene , 2000, Plant Growth Regulation.

[8]  D. Huber,et al.  Ethylene feedback mechanisms in tomato and strawberry fruit tissues in relation to fruit ripening and climacteric patterns , 2000 .

[9]  R. Byrde,et al.  Fungal pathogenicity and the plant's response. , 1974 .

[10]  D. Joyce,et al.  Suppression of grey mould on strawberry fruit with the chemical plant activator acibenzolar , 2000 .

[11]  C. V. Cutting,et al.  Fungal pathogenicity and the plant's response : proceedings of a Symposium held at Long Ashton Research Station, University of Bristol, 22-24 Sept., 1971 , 1973 .

[12]  E. Mullins,et al.  Consequences on ethylene metabolism of inactivating the ethylene receptor sites in diseased non-climacteric fruit , 2000 .

[13]  S. Selvarajah,et al.  Internal browning in cold-stored pineapples is suppressed by a postharvest application of 1-methylcyclopropene , 2001 .

[14]  R. Wills,et al.  1-Methylcyclopropene Can Differentially Affect the Postharvest Life of Strawberries Exposed to Ethylene , 1999 .

[15]  A. Bauchot,et al.  Ethylene biosynthesis and respiration in strawberry fruit treated with diazocyclopentadiene and IAA , 1997, Plant Growth Regulation.

[16]  R. Porat,et al.  Effects of ethylene and 1-methylcyclopropene on the postharvest qualities of ‘Shamouti’ oranges , 1999 .

[17]  Gun-Hee Kim,et al.  Interaction of enhanced carbon dioxide and reduced ethylene on the storage life of strawberries , 1998 .

[18]  Altaf Qadir,et al.  Ethylene production by Botrytis cinerea , 1997 .

[19]  G. Kim,et al.  Effect of ethylene on postharvest life of strawberries , 1995 .