Analysis of spatially resolved hyperspectral scattering images for assessing apple fruit firmness and soluble solids content

Abstract The study was conducted to determine the effects of Myrobalan rootstock and Blackthorn interstock on fruit physical and chemical traits of five apricot cultivars. The results showed that cultivars grafted on Myrobalan rootstock appear to induce a higher fruit mass when compared with the Blackthorn interstock. Blackthorn interstock showed a tendency to induce a higher soluble solids/titratable acidity ratio than Myrobalan. Values of soluble solids content, total sugars, titratable acidity and fruit firmness between Myrobalan rootstock and Blackthorn interstock were not significant. Regarding cultivars, the greatest fruit mass observed in Roxana in both treatments, and the lowest in Biljana on Myrobalan and in Vera on Blackthorn. The lowest soluble solids, total sugars and soluble solids/titratable acidity ratio were found in Roxana in both variants of grafting, whereas the greatest titratable acidity also observed in Roxana in both cases, respectively. Based on the results from this study, the fruits of Roxana can be recommended for fresh consumption, whereas fruits of the other cultivars can be recommended for processing.

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‘SPC136’ (Suite Note™) sweet cherry

Canadian Journal of Plant Science ◽

10.4141/cjps-2014-156 ◽

2014 ◽

Vol 94 (8) ◽

pp. 1555-1558

Author(s):

Cheryl Hampson ◽

Richard MacDonald ◽

Darrell-Lee McKenzie ◽

Linda Herbert ◽

Christopher Pagliocchini

Keyword(s):

Sweet Cherry ◽

Fruit Size ◽

Commercial Production ◽

Soluble Solids ◽

Fruit Firmness ◽

Soluble Solids Content ◽

Early Season ◽

Harvest Timing ◽

Cherry Blossom ◽

Solids Content

Hampson, C., MacDonald, R., McKenzie, D.-L., Herbert, L. and Pagliocchini, C. 2014. ‘SPC136’ (Suite Note™) sweet cherry. Can. J. Plant Sci. 94: 1555–1558. ‘SPC136’ (Suite Note™) is a new early-season sweet cherry being released for commercial production by the Agriculture and Agri-Food Canada sweet cherry breeding program at Summerland, BC, Canada. Harvest timing in Summerland (Jul. 09) is similar to that of ‘Bing’ or ‘Van’ but fruit size is much larger (over 12 g). Fruit firmness, soluble solids content and susceptibility to rain splitting resemble those of other cultivars of similar harvest timing, but stem detachment force is higher. The trees are not self-fertile and bloom late in the cherry blossom season.

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Effect of environment and harvest date on maturation and ripening of kiwifruit in British Columbia

Canadian Journal of Plant Science ◽

10.4141/cjps92-108 ◽

1992 ◽

Vol 72 (3) ◽

pp. 863-869 ◽

Cited By ~ 8

Author(s):

C. Kempler ◽

J. T. Kabaluk ◽

P. M. A. Toivonen

Keyword(s):

British Columbia ◽

Chlorophyll Fluorescence ◽

Harvest Date ◽

Soluble Solids ◽

Actinidia Deliciosa ◽

Fruit Firmness ◽

Soluble Solids Content ◽

Maturity Date ◽

Solids Content ◽

Harvest Maturity

Kiwifruit (Actinidia deliciosa var. deliciosa ’Hayward’ (A. Chev.) C. F. Liang et A. R. Ferguson) were harvested periodically from 10 Oct. to 21 Dec, 1990 to monitor "on-the-vine" ripening in three environments (field; greenhouse, covered for the full season; greenhouse, covered until pollination and then uncovered). Fruits were also placed in 1 °C, 97% RH storage on 19 Oct., 22 Oct., 25 Oct., and 3 Nov. and sampled periodically to monitor their "in storage" ripening. Field-grown fruit remained firmer than greenhouse-grown fruit (both treatments) on the vine, and in storage for about 7 weeks following harvest. There was little difference in the harvest maturity date of fruits from the three growing environments. In storage, fruits showed no differences in soluble solids content (SSC), and tissue deterioration (as measured with firmness and chlorophyll fluorescence) due to growing environments. The peak SSC values attained by fruits harvested prior to reaching a SSC of 6.2% were significantly lower than for fruits harvested after the SSC had reached or surpassed 6.2%. Later-harvested fruits remained firmer in storage than those harvested earlier. Changes in the fruits’ SSC and firmness were similar whether on the vine or in storage; however, fluorescence decline was more rapid in storage.Key words: Actinidia deliciosa, soluble solids content, fruit firmness, post harvest, chloroplast, temperature

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