| Autor: |
Yosef Mizrahi, S. Malis-Arad, S. Didi, E. Kopeliovitch |
| Rok vydání: |
1983 |
| Předmět: |
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| Zdroj: |
Journal of Horticultural Science. 58:111-116 |
| ISSN: |
0022-1589 |
| DOI: |
10.1080/00221589.1983.11515097 |
| Popis: |
SummaryFruits of relatively soft (cv Rutgers) and firm (cv 97–3) normally ripening tomato cultivars and of two lines of non-ripening mutants rin and nor were analysed for pectic substances during development and ripening. On an alcohol-insoluble basis, total pectic substances increased throughout development in all fruits. Water- and EDTA-soluble pectic substances increased much more during the ripening of the cultivars than during development of the mutant material. The decrease in insoluble pectic substances started before the onset of ripening in both cultivars but not in the mutants. The loss of firmness during ripening in each of the cultivars was accompanied by a decrease in the insoluble pectic substances and an increase in water-soluble pectic material. The difference in firmness between the soft and firm cultivars appeared to derive not only from the difference between their pectic substances but also from differences in other cell wall constituents. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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