Changes in physiology and quality of Laiyang pear in long time storage. Scientia Horticulturae, 2013, 150: 31每36
Changes in physiology and quality of Laiyang pear in long time storage
Ruiling Liu, Tongfei Lai, Yong Xua, Shiping Tian
Abstract:
Physiological disorders easily occur in Laiyang pear (Pyrus bretschneideri cv. Laiyang) fruit after harvest
and result in quality deterioration and short postharvest life. In this paper, we mainly investigated the
effects of 1-methylcyclopropene (1-MCP) treatment and controlled atmosphere (CA) with 2% O2 plus 2%
CO2 on quality of Laiyang pear and storage time. The results indicated that 1-MCP treatment and CA were
effective in maintaining quality and prolonging storage time of Laiyang pear fruit, because 1-MCP and CA
could significantly delay fruit senescence via limiting ethylene production, reducing fruit respiration rate,
regulating anti-oxidant enzymes and membrane permeability. We consider that the major action modes
of 1-MCP and CA, that can maintain harvested quality of Laiyang pear fruit, may be greatly contributed
to inhibiting ethylene biosynthesis and regulating anti-oxidant pathways.