Hostname: page-component-76fb5796d-qxdb6 Total loading time: 0 Render date: 2024-04-28T05:58:02.958Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of growth regulators and controlled atmosphere on stored carrots

Published online by Cambridge University Press:  27 March 2009

M. Abdel-Rahman  and
F. M. R. Isenberg
Get access Rights & Permissions [Opens in a new window]

Summary

Preharvest sprays with 6-hydroxy-3-(2H)-pyridazinone (MH), or immersion in solutions of MH, 2,4-dichlorophenoxyacetic acid (2,4-D), 2-chloroethylphosphonic acid (ethephon), coumarin or (2-chloroethyl) trimethylammonium chloride (CCC) inhibited both sprouting and rooting of treated carrots during storage at 0 °C whencompared with water-dipped or untreated carrots, while N-6-benzyl-adenine (BA) dips stimulated extensive rooting and sprouting. In contrast, immersion in gibberellic acid (GA3) solutions had very little effect.

Storage atmospheres containing 1, 2.5, 5 or 10% oxygen inhibited both sprouting and rooting but increased mould infection. Atmospheres containing 21% (air) or 40% oxygen reduced mould infection, but increased sprouting and rooting of stored carrots. Washing carrots in water before storage did not significantly affect mould infection, while washing in 0.5% clorox increased it. However, washing in water followed by immersion in MH inhibited both sprouting and rooting and also reduced mould infection. ‘Jumbo’ and large-size carrots stored better than medium and small carrots.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 82 , Issue 2 , April 1974 , pp. 245 - 249
Copyright
Copyright © Cambridge University Press 1974

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Apeland, J. & Hoften, H. (1969). Physiological effects of oxygen on carrots in storage. Acta Horticulturea 20 92–7.Google Scholar
Dobrev, K. (1961). The storage of root vegetable with the aid of very active chemical substances. Horticultural Abstract 34, 6891.Google Scholar
Enachescu, G. & Pirlea, V. (1967). The efflciency of certain chemical products for extending the dormancy of carrots and potatoes. Horticultural Abstract 38, 7908.Google Scholar
Ito, H. (1955). The control of bolting by MH 30. Chemical Abstract 49, 10568.Google Scholar
Newhall, A. G. (1953). The control of bolting by MH-30. Chemical Abstract 49, 10568.Google Scholar
Platenius, H. (1943). Effect of oxygen concentration on the respiration of some vegetables. Plant Physiology 18, 671–84.Google Scholar
Smith, W. H. (1943). Storage of carrots. Agriculture, London 55, 119–24.Google Scholar
Vandenberg, L. & Lentz, C. P. (1966). Effects of temperature, relative humidity, and atmospheric composition on changes of carrots during storage. Food Technology 20, 104–7.Google Scholar
Weichman, J. (1969). Experiments concerning the CO2-production and storage of carrots in small boxes Acta Horticulturae 20, 98–107.Google Scholar
Wittwer, S. H., Sharma, R. C., Weller, R. E. & Shell, H. M. (1950). The effect of pre-harvest foliage sprays of certain growth regulators on sprout inhibition and storage quality of carrots and onions. Plant Physiology 25, 539–49.Google Scholar