The Effect of Ethephon, Abscisic Acid, and Methyl Jasmonate on Fruit Ripening in Rabbiteye Blueberry (Vaccinium virgatum)
Ripening in blueberry fruit is irregular and occurs over an extended period requiring multiple harvests, thereby increasing the cost of production. Several phytohormones contribute to the regulation of fruit ripening. Certain plant growth regulators (PGRs) can alter the content, perception, or actio...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-09-01
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| Series: | Horticulturae |
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| Online Access: | http://www.mdpi.com/2311-7524/4/3/24 |
| _version_ | 1811331362948382720 |
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| author | Yi-Wen Wang Anish Malladi John W. Doyle Harald Scherm Savithri U. Nambeesan |
| author_facet | Yi-Wen Wang Anish Malladi John W. Doyle Harald Scherm Savithri U. Nambeesan |
| author_sort | Yi-Wen Wang |
| collection | DOAJ |
| description | Ripening in blueberry fruit is irregular and occurs over an extended period requiring multiple harvests, thereby increasing the cost of production. Several phytohormones contribute to the regulation of fruit ripening. Certain plant growth regulators (PGRs) can alter the content, perception, or action of these phytohormones, potentially accelerating fruit ripening and concentrating the ripening period. The effects of three such PGRs—ethephon, abscisic acid, and methyl jasmonate—on fruit ripening were evaluated in the rabbiteye blueberry (Vaccinium virgatum) cultivars ‘Premier’ and ‘Powderblue’. Application of ethephon, an ethylene-releasing PGR, at 250 mg L−1 when 30–40% of fruit on the plant were ripe, accelerated ripening by increasing the proportion of blue (ripe) fruit by 1.5–1.8-fold within 4 to 7 days after treatment in both cultivars. Ethephon applications did not generally alter fruit quality characteristics at harvest or during postharvest storage, except for a slight decrease in juice pH at 1 day of postharvest storage and an increase in fruit firmness and titratable acidity after 15 days of postharvest storage in Powderblue. In Premier, ethephon applications decreased the proportion of defective fruit at 29 days of postharvest storage. Abscisic acid (600–1000 mg L−1) and methyl jasmonate (0.5–1 mM) applications did not alter the proportion of ripe fruit in either cultivar. These applications also had little effect on fruit quality characteristics at harvest and during postharvest storage. None of the above PGR applications affected the development of naturally occurring postharvest pathogens during storage. Together, data from this study indicated that ethephon has the potential to accelerate ripening in rabbiteye blueberry fruit, allowing for a potential decrease in the number of fruit harvests. |
| first_indexed | 2024-04-13T16:19:19Z |
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| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-04-13T16:19:19Z |
| publishDate | 2018-09-01 |
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| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-d1721df58dd54bf8bf1c41e999f93a032022-12-22T02:39:59ZengMDPI AGHorticulturae2311-75242018-09-01432410.3390/horticulturae4030024horticulturae4030024The Effect of Ethephon, Abscisic Acid, and Methyl Jasmonate on Fruit Ripening in Rabbiteye Blueberry (Vaccinium virgatum)Yi-Wen Wang0Anish Malladi1John W. Doyle2Harald Scherm3Savithri U. Nambeesan4Department of Horticulture, Miller Plant Sciences, University of Georgia, Athens, GA 30602, USADepartment of Horticulture, Miller Plant Sciences, University of Georgia, Athens, GA 30602, USADepartment of Horticulture, Miller Plant Sciences, University of Georgia, Athens, GA 30602, USADepartment of Plant Pathology, Miller Plant Sciences, University of Georgia, Athens, GA 30602, USADepartment of Horticulture, Miller Plant Sciences, University of Georgia, Athens, GA 30602, USARipening in blueberry fruit is irregular and occurs over an extended period requiring multiple harvests, thereby increasing the cost of production. Several phytohormones contribute to the regulation of fruit ripening. Certain plant growth regulators (PGRs) can alter the content, perception, or action of these phytohormones, potentially accelerating fruit ripening and concentrating the ripening period. The effects of three such PGRs—ethephon, abscisic acid, and methyl jasmonate—on fruit ripening were evaluated in the rabbiteye blueberry (Vaccinium virgatum) cultivars ‘Premier’ and ‘Powderblue’. Application of ethephon, an ethylene-releasing PGR, at 250 mg L−1 when 30–40% of fruit on the plant were ripe, accelerated ripening by increasing the proportion of blue (ripe) fruit by 1.5–1.8-fold within 4 to 7 days after treatment in both cultivars. Ethephon applications did not generally alter fruit quality characteristics at harvest or during postharvest storage, except for a slight decrease in juice pH at 1 day of postharvest storage and an increase in fruit firmness and titratable acidity after 15 days of postharvest storage in Powderblue. In Premier, ethephon applications decreased the proportion of defective fruit at 29 days of postharvest storage. Abscisic acid (600–1000 mg L−1) and methyl jasmonate (0.5–1 mM) applications did not alter the proportion of ripe fruit in either cultivar. These applications also had little effect on fruit quality characteristics at harvest and during postharvest storage. None of the above PGR applications affected the development of naturally occurring postharvest pathogens during storage. Together, data from this study indicated that ethephon has the potential to accelerate ripening in rabbiteye blueberry fruit, allowing for a potential decrease in the number of fruit harvests.http://www.mdpi.com/2311-7524/4/3/24plant growth regulatorsethephonabscisic acidmethyl jasmonatepostharvest fruit quality |
| spellingShingle | Yi-Wen Wang Anish Malladi John W. Doyle Harald Scherm Savithri U. Nambeesan The Effect of Ethephon, Abscisic Acid, and Methyl Jasmonate on Fruit Ripening in Rabbiteye Blueberry (Vaccinium virgatum) Horticulturae plant growth regulators ethephon abscisic acid methyl jasmonate postharvest fruit quality |
| title | The Effect of Ethephon, Abscisic Acid, and Methyl Jasmonate on Fruit Ripening in Rabbiteye Blueberry (Vaccinium virgatum) |
| title_full | The Effect of Ethephon, Abscisic Acid, and Methyl Jasmonate on Fruit Ripening in Rabbiteye Blueberry (Vaccinium virgatum) |
| title_fullStr | The Effect of Ethephon, Abscisic Acid, and Methyl Jasmonate on Fruit Ripening in Rabbiteye Blueberry (Vaccinium virgatum) |
| title_full_unstemmed | The Effect of Ethephon, Abscisic Acid, and Methyl Jasmonate on Fruit Ripening in Rabbiteye Blueberry (Vaccinium virgatum) |
| title_short | The Effect of Ethephon, Abscisic Acid, and Methyl Jasmonate on Fruit Ripening in Rabbiteye Blueberry (Vaccinium virgatum) |
| title_sort | effect of ethephon abscisic acid and methyl jasmonate on fruit ripening in rabbiteye blueberry vaccinium virgatum |
| topic | plant growth regulators ethephon abscisic acid methyl jasmonate postharvest fruit quality |
| url | http://www.mdpi.com/2311-7524/4/3/24 |
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