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The aim of 3 -year experiment was to evaluate quality and chemical composition of blue honeysuckle berries cultivar 'Czarna' and non-specified seedling "N" as de­pendent on time of ripening. The results obtained showed that berries harvested later were bigger but less firm. Furthermore, an increase of soluble solids content was observed in fruit of both cultigens at the end of harvest (for seedling "N" from 11 to 13.5% and for 'Czarna' from 9.8% to 12.6%). On the other hand, for late-harvested berries of both cultigens 20% decrease of titratable acidity and vitamin C was noticed. In berries of seedling "N" at the beginning of harvest 232 mg 100 g-1 of total polyphe­nols was determined, whereas the late ripening fruit contained 284 mg 100 g-1 of total polyphenols. Similar relation was observed in 'Czarna' berries (an increase from 164 mg 100 g-1 to 221 mg 100 g-1). The berries of late harvest contained more antho- cyanins (167 mg 100 g-1 in 'Czarna' and 227 mg 100 g-1 in seedling "N") as compared to early collected ones (122 and 173 mg 100 g-1 for, 'Czarna' and "N", respectively). Hydroxycinnamic acids content varied from 37.0 to 29.3 mg 100 g-1, respectively, for early and late collected berries of seedling "N" and from 22.3 mg 100 g-1 to 26.6 mg 100 g-1 for early and late harvested berries of 'Czarna'. Among flavonols, quercetin-3-rutinoside, quercetin-3-glucoside and two unidentified flavonols with retention times 26 min and 32 min, were determined. Luteolin 7-O-a-glucoside content varied from 4.59 to 7.05 mg 100 g-1 in the early and late harvested berries of seedling "N" and from 3.12 mg 100 g-1 in the early to 4.25 mg 100 g-1 in the late harvested berries of 'Czarna'.
The experiment was conducted at the Experimental Station near Krakow in 2008 and 2009. The objects of the experiment were twelve-year-old pear trees cv. 'Confer­ence'. The aim of the experiment was to evaluate the effect of three commercial preparations, containing two forms of the auxin NAA and the cytokinin BA, on the fruit set, total yield, fruit weight and the firmness, acidity and soluble solids content of the flesh. Treatments were carried out when fruitlets were 12 mm in diameter. Control trees were not treated. All the combinations used decreased fruit set and total yield, but increased fruit weight. The applied preparations had no clear effect on the acidity and soluble solids content of the fruit juice. None of the treatments affected fruit firmness, acidity and soluble solids content of the fruit juice after harvest and after storage.
The study was carried out during the two storage seasons of 2008/2009 and 2009/2010. The subject of this study was the checking of the influence of the harvest dates being 4-days apart, and checking of the different storage conditions (CA 0.8% CO2:2% O2, CA 2% CO2:2% O2, CA 3% CO2:3% O2 and NA - normal atmosphere) on the selected quality parameters of 'Concorde' pears. The pears were first stored for 150 days in 0-0.5 oC. Once the fruit was out of the storage it was stored in simulated shelf-life conditions for an additional 7 days at a temperature of 17 oC. An evaluation of pear quality was conducted after each harvest date, after taking them out of the cold storage and after simulated shelf-life. Flesh firmness, soluble solids content and titratable acidity were determined, and pear health was evaluated. Harvest date had a significant impact on the maturity of fruit, and values of the investigated quality parameters of pears, during the harvest. During the subsequent harvests, the value of the starch index and soluble solids content in pears increased, whereas Streif's matur­ity index, flesh firmness and titratable acidity decreased. Harvest date and storage conditions also had a significant influence on the investigated qualitative attributes of pears determined after storage, and the simulated shelf-life period. Pears stored in controlled atmosphere conditions were firmer and had higher titratable acidity than fruit stored in common cold storage. Delay in the harvest date resulted in fast soften­ing of fruit, significant reduction of titratable acidity, and higher susceptibility to putrefaction caused most of all by the gloeosporium rot. A serious problem observed during long term storage of 'Concorde' pears was sensitivity to flesh damage caused by CO2, and high susceptibility to senescent scald.
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