The Influence of Ethephon Application Timing and Rate on Plant Growth, Yield, Tuber Size Distribution and Skin Color of Red LaSoda Potatoes

Buhrig, William; Thornton, Michael K.; Olsen, Nora; Morishita, Don W.; McIntosh, Christopher S.

doi:10.1007/s12230-014-9417-5

Cited by 11 publications

(9 citation statements)

References 13 publications

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“…Cultivar means are averages of four treatments, two years, and four replications, treatment means are averages of four cultivars, two years, and four replications, and year means are averages of four treatments, four cultivars, and four replications category. However, 2,4-D treatment had minimal effect on the yields in the large tuber size category (171-283 g and >283 g) which is inconsistent with the conclusions from previous studies (Buhrig, Thornton, Olsen, Morishita, & McIntosh, 2015;Fritz et al, 1991;Nelson & Nylund, 1963;Thornton et al, 2013) indicating that foliar application of 2,4-D reduces the proportional contribution of large size potatoes (over 283 g) to total yield. In this study, we found that 2,4-D application did not affect potato specific gravity.…”

Section: Discussioncontrasting

confidence: 90%

Effect of foliar application of 2,4‐D and calcium on red‐skinned potato cultivars

et al. 2020

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Applications of the plant growth regulator 2,4‐dichlorophenoxyacetic acid (2,4‐D) and calcium (Ca) are often used to improve the tuber skin quality of red potatoes. Field trials were conducted at Klamath Falls, OR in 2004 and 2005 to evaluate the effect of foliar applications of 2,4‐D and Ca on yield components, specific gravity, and the tuber skin color of four red‐skinned potato cultivars (Red LaSoda, Mazama, Cherry Red, and Rio Rojo). Skin color was evaluated using a Konica Minolta colorimeter at three‐time points during storage. Treatments of either 2,4‐D or Ca did not affect total tuber yield. However, 2,4‐D increased the proportion of tubers less than 170 g potato. When compared to non‐treated potato plants, 2,4‐D resulted in darker tuber skin with increased red pigmentation. Foliar application of Ca did not affect the tuber yield nor skin color. Calcium addition (in a form of CaCl2) decreased specific gravity possibly due to the chloride component. All potato cultivars exhibited color fading throughout the 6‐month storage period. Our data support the evidence that foliar application of 2,4‐D effectively enhances the color of most red‐skin potatoes, whereas foliar application of Ca may be not necessary in soils with adequate Ca supply.

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Section: Discussioncontrasting

confidence: 90%

Effect of foliar application of 2,4‐D and calcium on red‐skinned potato cultivars

et al. 2020

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“…The results indicated that ethephon slightly influenced color parameters as a significant difference only achieved by L*. Buhrig et al (2015) reported that ethephon significantly altered L* of potatoes skin. Variety treatment had different in fruit skin colour.…”

Section: Effects Of Ethephon and Variety On Fruit Qualitymentioning

confidence: 83%

Growth, yield, and fruit quality responses of three cucumber (Cucumis sativus L.) varieties to different ethephon concentrations

et al. 2022

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The decline in cucumber (Cucumis sativus L.) production in Indonesia was correlated with sex ratio imbalance. Therefore, ethephon could be used to retard vegetative growth and modify the sex ratio of the cucumber plant towards femaleness to increase yield. This regulator also has the ability to increase fruit quality. The objective of this research was to investigate the growth, yield, and fruit quality responses of three cucumber varieties to different ethephon concentrations. A factorial randomized block design was used and consisted of cucumber variety (Vanesa, Mars, and Roberto) and ethephon concentration (no ethephon, 150 ppm, and 300 ppm). Each treatment was replicated three times. The results revealed that 150 ppm of ethephon reduced vegetative growth and increased the number of female flowers, sex ratio, fruit diameter, and marketable fruits. Roberto variety had the highest sex ratio, fruit length, total carotenoid, flavonoid, and phenolic content. The interaction effect showed that Roberto with 150 ppm of ethephon exhibited the best in male flower number and fruit weight per plant. Overall, the ethephon treatment at 150 ppm and Roberto variety were recommended to increase the yield and quality of cucumber.

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“…Ethephon (ET) is a plant growth regulator [27], which releases ethylene after autohydrolysis and thus promotes the growth of adventitious roots in plants [28]. The application of ET caused the inhibition of native soil proteases at the meadow site.…”

Section: Resultsmentioning

confidence: 99%

Proteolytic Activity in Meadow Soil after the Application of Phytohormones

Holík

Vranová

2019

Biomolecules

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Phytohormones, similar to soil enzymes, are synthesized and secreted into the soil environment by fungi and microorganisms. Phytohormones are involved in regulating microbial community activity in the rhizosphere. This paper examines how auxins, cytokinins, ethephon and chlorocholine chloride affect the activity of native soil proteases in the organo-mineral horizon of an alpine meadow. In the meadow habitat, native soil proteases were inhibited by auxins whereas the effect of cytokinins on these enzymes was not statistically significant. A similar inhibitory effect on the activity of proteases was shown for ethephon and chlorocholine chloride, both of which also inhibited the activity of native soil proteases in the alpine meadow soil. Overall, the inhibitory effect of phytohormones on the activity of native protease activity may affect plant nutrition by retarding the nitrogen cycle in the soil. This work contributes to our understanding of the influence of substances produced by the rhizosphere that can actively participate in the activity of soil microorganisms and consequently influence the soil nitrogen cycle.

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The Influence of Ethephon Application Timing and Rate on Plant Growth, Yield, Tuber Size Distribution and Skin Color of Red LaSoda Potatoes

Cited by 11 publications

References 13 publications

Effect of foliar application of 2,4‐D and calcium on red‐skinned potato cultivars

Effect of foliar application of 2,4‐D and calcium on red‐skinned potato cultivars

Growth, yield, and fruit quality responses of three cucumber (Cucumis sativus L.) varieties to different ethephon concentrations

Proteolytic Activity in Meadow Soil after the Application of Phytohormones

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