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Comparison of fruit quality, maturity, and storability of ‘Gala’ and red-coloured ‘Gala’ mutants (Malus domestica Borkh)

Dorota Kruczyńska, Krzysztof Rutkowski, Alojzy Czynczyk

Research Institute of Pomology and Floriculture
Pomologiczna 18, 96-100 Skierniewice, Poland
e-mail: dkruczyn@insad.pl, krutkow@insad.pl, aczynczy@insad.pl

The experiment was carried out in the years 1998-2001. A comparison of fruit quality and storability was made in Central Poland between ‘Gala’ and three red-coloured mutants of ‘Gala’ grown on M.26 rootstock. In the experiment the fruit size and colour were estimated. At harvest and after storage the sugar content, acidity, and flesh firmness were measured. The fruits were harvested when the starch index for ‘Gala’ was 3-4. After 3 years of investigation the fruits of ‘Gala Must’ were the largest whereas ‘Gala Royal’ the smallest. The difference in fruit maturity of the studied cultivars occurred in each season. The fruits of ‘Gala’ mutants ripened earlier than those of ‘Gala’. Acidity and sugar content measured at harvest time and after storage were similar for all cultivars. The apples of ‘Gala Must’ showed the highest flesh firmness after storage in the two first years of the study.

Kruczyńska D., Rutkowski K., Czynczyk A., 2001. Comparison of fruit quality, maturity, and storability of ‘Gala’ and red-coloured ‘Gala’ mutants (Malus domestica Borkh). Folia Horticulturae 13/2: 83-87.