Economic Botany

, Volume 26, Issue 3, pp 238–244 | Cite as

Ethrel-induced ripening of immature and mature-green tomato fruits

  • N. D. Bondad
  • Er. B. Pantastico


Ethrel accelerated the ripening of both immature and mature-green ‘2029’ tomato fruits. The best concentrations and time of dipping used were 2500 to 10,000 ppm and 5 minutes, respectively. Addition of surfactants and DMSO did not markedly influence the effectivity of Ethrel. Ethrel-treated fruits harvested 21 and 28 days after fruit set ripened normally but 14 day old fruits did not.


Economic Botany Titratable Acidity Tomato Fruit Color Index Total Soluble Solid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature Cited

  1. Amchem 1969. Ethrel. Technical Service data sheet. Amchem Prod., Inc. 64 pp.Google Scholar
  2. Ben-Yehoshua, S., S. Iwahori and J. M. Lyons. 1970. Role of ethylene and Ethrel in the development of fig fruit. Israel J. Agr. Res.20: 173–177.Google Scholar
  3. Coffey, D. L. 1970. Accelerating tomato fruit ripening with Ethrel. Tenn. Farm Home Sci.73: 12–14.Google Scholar
  4. Crane, J. C., N. Marei and M. M. Nelson. 1970. Ethrel speeds growth and maturity of figs. Calif. Agr.24(3): 8–10.Google Scholar
  5. Dennis, F. G., Jr., H. Wilcynski, M. de la Guardia and R. W. Robinson. 1970. Ethylene levels in tomato fruits following treatment with Ethrel. HortSci.5: 168–70.Google Scholar
  6. Dilley, D. R. 1969. Hormonal control of fruit ripening. HortSci.4: 111–14.Google Scholar
  7. Garrison, S. A. 1968. Stimulation of tomato ripening by Amchem 66-329. HortSci.3: 122.Google Scholar
  8. Gortner, W. A., G. G. Dull and B. H. Krauss. 1967. Fruit development, maturation, ripening and senescence: A biochemical basis for horticultural terminology. HortSci.2: 141–44.Google Scholar
  9. Gull, D. D. 1968. Ripening behavior and edible quality of tomato treated with Amchem 68-62 (Ethrel). Proc. Fla. Sta. Hort. Soc.81: 214–20.Google Scholar
  10. Iwahori, S. and J. M. Lyons. 1969. Accelerating tomato fruit maturity with Ethrel. Calif. Agr.23(8): 17–18.Google Scholar
  11. Lyons, J. M. and H. K. Pratt. 1964. Effect of stage of maturity and ethylene treatment on respiration and ripening of tomato fruits. Proc. Am. Soc. Hort. Sci.84: 491–500.Google Scholar
  12. Magoon, C. S. 1969. Tomatoes. Fruit and Vegetable Facts and Pointers. United Fresh Fruit Veg. Assoc. Wash. 44 pp.Google Scholar
  13. McCollum, J. P. 1956. Sampling tomato fruits for composition studies. Proc. Am. Soc. Hort. Sci.68: 587–95.Google Scholar
  14. Mendoza, D. B., Jr. 1968. Respiration of banana fruits. Phil. Agr.51: 747–56.Google Scholar
  15. Meyer, C. H. 1963. Tomato repacking methods and equipment. U.S. Dept. Agr. Mktg. Res. Rpt. 597. 59 pp.Google Scholar
  16. Rabinowitch, H. D., J. Rudich and N. Kedar. 1970. The effect of Ethrel on ripening of tomato and melon fruits. Israel J. Agr. Res.20: 47–54.Google Scholar
  17. Robinson, R. W., N. Wilcynski, F. G. Dennis, Jr., and H. H. Bryan. 1968. Chemical promotion of tomato fruit ripening. Proc. Am. Soc. Hort. Sci.93: 823–30.Google Scholar
  18. Rowan, K. S., H. K. Pratt and R. N. Robertson. 1958. The relationship of high-energy phosphate content, protein synthesis and the climacteric rise in the respiration of ripening avocado and tomato fruits. Aust. J. Biol. Sci.11: 329–35.Google Scholar
  19. Sims, W. L. 1969. Effects of Ethrel on fruit ripening of tomatoes. Greenhouse, field and postharvest trials. Calif. Agr.23(7): 12–14.Google Scholar
  20. Skytt Andersen, A. 1970. Plant growth modification by 2-chloroethylphosphonic acid (Ethrel). II. Interactions between Ethrel and gibberellin in the growth and fruiting of pea plants. Royal Vet. Agr. Chem. Univ. Yearbook1971: 11–19.Google Scholar
  21. Spencer, M. S. 1956. Ethylene metabolism in tomato fruit. I. Relationship of ethylene evolution to fruit respiration and ripening. Can. J. Biochem. Physiol.34: 1261–70.PubMedGoogle Scholar
  22. Tomkins, D. R., W. A. Sistrunk and T. L. Cloninger. 1970. Ethrel, a new chemical to control the ripening of tomato fruit. Ark. Farm. Res.19(2): 16.Google Scholar
  23. USDA. 1961. United States standards for grades of fresh tomatoes. U.S. Dept. Agr. Mktg. Serv. 11 p.Google Scholar
  24. Wang, C. Y. and E. Hansen. 1970. Differential response to ethylene in respiration and ripening of immature ‘Anjou’ pears. J. Am. Soc. Hort. Sci.95: 314–16.Google Scholar
  25. Wilde, R. C. de. 1970. Practical applications of 2-chloroethylphosphonic acid in agricultural production. HortSci.6: 364–370.Google Scholar
  26. Workman, M., H. K. Pratt and L. L. Morris. 1957. Studies on the physiology of tomato fruits. I. Respiration and ripening behavior at 20°C as related to date of harvest. Proc. Am. Soc. Hort. Sci.69: 352–65.Google Scholar

Copyright information

© The New York Botanical Garden 1972

Authors and Affiliations

  • N. D. Bondad
  • Er. B. Pantastico
    • 1
  1. 1.Department of AgronomyUniversity of the Philippines, College of AgricultureCollege LagunaPhilippines

Personalised recommendations