AMADURECIMENTO DE KIWIS 'BRUNO' SUBMETIDOS AO DANO MECÂNICO DE IMPACTO E AO TRATAMENTO COM 1-METILCICLOPROPENO

The objective of this research was to evaluate the effect of the impact injury and treatment with 1-methylcyclopropene on the ripening of 'Bruno' kiwifruits. The treatments evaluated were: control (T1); mechanical injury with fruit drop at 60 cm (T2) and 120 cm (T3); 1-MCP (1µL L-1) (T4); and 1-MCP (1µL L-1) + fruit drop at 120cm (T5). After the treatments, fruit were stored at 20±2 UC and 65±5% RH. The treatment T3, caused increases respiration and ethylene production rates and reduced flesh firmness and texture. Application of 1-methylcyclopropene reduced ethylene production and respiration rates and increased flesh firmness and texture. In fruit submitted to mechanical injury, the application of 1-methylcyclopropene provided values of flesh firmness, texture, and respiration and ethylene production rates similar to the control treatment. As conclusion, the treatment with 1-MCP can avoid ripening induced by mechanical injury in 'Bruno' kiwifruit.

[1]  G. Sozzi,et al.  Suppression of ethylene perception after exposure to cooling conditions delays the progress of softening in ‘Hayward’ kiwifruit , 2010 .

[2]  A. Koukounaras,et al.  Effect of 1-MCP prestorage treatment on ethylene and CO2 production and quality of ‘Hayward’ kiwifruit during shelf-life after short, medium and long term cold storage , 2007 .

[3]  Auri Brackmann,et al.  Taxa respiratória de frutas de clima temperado , 2007 .

[4]  L. Mao,et al.  Application of 1-methylcyclopropene prior to cutting reduces wound responses and maintains quality in cut kiwifruit , 2007 .

[5]  P. Tonutti,et al.  The ethylene biosynthetic and signal transduction pathways are differently affected by 1-MCP in apple and peach fruit , 2006 .

[6]  C. Watkins.  The use of 1-methylcyclopropene (1-MCP) on fruits and vegetables. , 2006, Biotechnology advances.

[7]  F. Mencarelli,et al.  1-MCP controls ripening induced by impact injury on apricots by affecting SOD and POX activities , 2006 .

[8]  Angelita Duarte Corrêa,et al.  Firmeza de pêssegos 'diamante' tratados com 1-MCP , 2005 .

[9]  J. F. Durigan,et al.  Injúrias mecânicas na qualidade pós-colheita de lima ácida 'Tahiti' armazenada sob condição ambiente , 2005 .

[10]  T. Matsui,et al.  Ethylene biosynthetic genes in ‘Moso’ bamboo shoot in response to wounding , 2005 .

[11]  A. Chitarra,et al.  Pós colheita de frutas e hortaliças: fisiologia e manuseio , 2005 .

[12]  S. Kim,et al.  Bruising injury of persimmon (Diospyros kaki cv. Fuyu) fruits , 2005 .

[13]  Auri Brackmann,et al.  Qualidade da maçã cv. Gala tratada com 1-metilciclopropeno , 2004 .

[14]  J. F. Zanatta,et al.  Atmosfera modificada e 1-metilciclopropeno na conservação pós-colheita de kiwis cv. Bruno , 2003 .

[15]  K. Majumder,et al.  Changes of pectic substances in developing fruits of cape-gooseberry (Physalis peruviana L.) in relation to the enzyme activity and evolution of ethylene , 2002 .

[16]  Maarten Hertog,et al.  Temperature induces differential softening responses in apple cultivars , 2001 .

[17]  J. F. Durigan,et al.  EFEITO DE INJÚRIAS MECÂNICAS NO PROCESSO RESPIRATÓRIO E NOS PARÂMETROS QUÍMICOS DE GOIABAS 'PALUMA' E 'PEDRO SATO' , 2001 .

[18]  R. Beaudry,et al.  Proposal for a rationalized system of units for postharvest research in gas exchange , 1995 .

[19]  J. Hasey.  Kiwifruit growing and handling , 1994 .

[20]  I. Warrington,et al.  Kiwifruit : science and management , 1990 .