Hormone Treatments Alter Fruit Ripening

Exogenous treatments were performed in cv. Cuiguan fruit at approximately 80 DAFB. At least 40 fruits on the tree were soaked in 300 μL l⁻¹ ethephon or 1.5 μL l⁻¹ 1-methylcyclopropene (1-MCP) solutions for 5 min. To block light and limit gas exchange, the treated fruits were bagged with black airtight papers that were removed after 24 h. The fruits treated with ethephon were collected at the ripening stage, while the fruits treated with 1-MCP were collected on the same day as the control fruits at the ripening stage. At least six fruits were included in each of six biological replicates. The sampling regime was identical to a previous report [32 (link)].

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Cao S.H., Guo Z.H., Liu H., Wang G.M., Qi K.J., Wang Z.W., Tian R.P., Sha S.F., Zhang S.L, & Gu C. (2024). Interaction among homeodomain transcription factors mediates ethylene biosynthesis during pear fruit ripening. Horticulture Research, 11(5), uhae086.

Publication 2024

Corresponding Organization : Liaoning Academy of Agricultural Sciences

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Variable analysis

independent variables

Exogenous treatments performed on cv. Cuiguan fruit at approximately 80 DAFB
Soaking fruits in 300 μL l^-1 ethephon solution for 5 min
Soaking fruits in 1.5 μL l^-1 1-methylcyclopropene (1-MCP) solution for 5 min

dependent variables

Fruit ripening stage

control variables

Fruits treated with 1-MCP were collected on the same day as the control fruits at the ripening stage
At least six fruits were included in each of six biological replicates
The sampling regime was identical to a previous report [32]

controls

Positive control: Fruits treated with ethephon
Negative control: Untreated control fruits

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