Ethylene production in apple infected by Gleosporium album Ostrw. at cold storage

Autor: J. Goliáš, A. Němcová, P. Mýlová
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: Horticultural Science, Vol 33, Iss 1, Pp 1-6 (2006)
Druh dokumentu: article
ISSN: 0862-867X
1805-9333
DOI: 10.17221/3732-HORTSCI
Popis: In ten cultivars of apple fruit, ethylene production expressed in μl/kg/h was determined. The cultivar Resista exhibited a higher ethylene production and can be differentiated from other cultivars. The production ranged from 4.2 ± 0.58 μl/kg/h in the case of Meteor cv. up to 131.6 ± 5.5 μl/kg/h in Resista cv. Infected fruit of Topaz cv. had a lower ethylene production at cold storage temperature (3°C) than some healthy fruit. All examined cultivars can be divided into three clusters. Discriminant analysis and canonical correlation analysis of the examined apple fruit led to the determination of healthy and infected fruit. Values of ethylene production were analyzed on intact fruit by using headspace gas analysis by CGC with thermal desorption technique. Carbosieve G was chosen as the adsorbent material for the traps due to its relatively high affinity for light hydrocarbons such as ethylene. For a full trap of ethylene in the enrichment column the sufficient amount of percolating gas is about 0.3 l.
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