Treatment of Produce

A method of treating produce comprising:

• exposing said produce to an atmosphere containing
• (i) 100 ppb to 5,000 ppb by volume of one or more cyclopropene compound, and
• (ii) exogenous ethylene, wherein the ratio of exogenous ethylene concentration by volume to cyclopropene concentration by volume is from 0.1:1 to 8:1;
• and
• subsequent to said exposing, storing said produce for 2 weeks or longer at temperature of −1.5° C. to 4° C.
• wherein said produce comprises produce that is over-reactive to cyclopropene,
• wherein said exposing is conducted at temperature of −1.5° C. to 25° C.,
• wherein said produce comprises an edible harvested crop,
• wherein said treating takes place after said produce is harvested, and wherein the time that elapses after harvest before said treating is 8 days or less, and
• wherein said ethylene is introduced into said atmosphere by injection as a gas from an external container.

A method of treating produce comprising:

• exposing said produce to an atmosphere containing
• (i) 100 ppb to 5,000 ppb by volume of one or more cyclopropene compound, and
• (ii) exogenous ethylene, wherein the ratio of exogenous ethylene concentration by volume to cyclopropene concentration by volume is from 0.1:1 to 8:1;
• and
• subsequent to said exposing, storing said produce for 2 weeks or longer at temperature of −1.5° C. to 4° C.;
• wherein said produce comprises produce that is over-reactive to cyclopropene,
• wherein said exposing is conducted at temperature of −1.5° C. to 25° C.,
• wherein said produce comprises an edible harvested crop,
• wherein said treating takes place after said produce is harvested, and wherein the time that elapses after harvest before said treating is 8 days or less, and
• wherein said ethylene is introduced into said atmosphere by placing a sealed vial containing the ethylene into the atmosphere and then unsealing the sealed container.

A method of treating produce comprising:

• exposing said produce to an atmosphere containing
• (i) 100 ppb to 5,000 ppb by volume of one or more cyclopropene compound, and
• (ii) exogenous ethylene, wherein the ratio of exogenous ethylene concentration by volume to cyclopropene concentration by volume is from 0.1:1 to 8:1;
• and
• subsequent to said exposing, storing said produce for 2 weeks or longer at temperature of −1.5° C. to 4° C.;
• wherein said produce comprises produce that is over-reactive to cyclopropene,
• wherein said exposing is conducted at temperature of −1.5° C. to 25° C.,
• wherein said produce comprises an edible harvested crop,
• wherein said treating takes place after said produce is harvested, and wherein the time that elapses after harvest before said treating is 8 days or less, and
• wherein said ethylene is introduced into said atmosphere by producing said ethylene by a catalytic reaction in an airtight container containing said atmosphere.