Determination of harvest maturity of D'Agen plums using the chlorophyll absorbance index

Infante, Rodrigo; Rubio, P.; Contador, Loreto; Noferini, M.; Costa, Guglielmo

doi:10.4067/s0718-16202011000200004

Cited by 22 publications

(9 citation statements)

References 6 publications

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“…In fact, a relatively low correlation ( 2 = 0.60) between AD and SSC was observed (Figure 3). These results were also in agreement with Hale et al [40] for "August Fire" but in contrast to a recent publication by Infante et al [18] on two cultivars of Japanese plums, "Angeleno" and "Autumn Beauty". Infante [41] described the AD as an index having high correlation with the most common parameters used for monitoring ripening, such as fruit firmness and SSC with 2 > 0.89 and >0.70, respectively.…”

Section: Discussioncontrasting

confidence: 56%

“…Iglesias and Echeverría [17] reported that peach fruit firmness alone is not a satisfactory minimum maturity index because it varies between nectarine cultivars, and for a given cultivar firmness varies in relation to fruit size, climatic conditions, and agronomical practices. Instead, background color is an informative harvest index as it reflects the chlorophyll content of the fruit [18]. Cascales et al [19] found that changes in peach fruit background color due to chlorophyll degradation are proportional to those perceived by a panel of assessors.…”

Section: International Journal Of Agronomymentioning

confidence: 99%

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Nectarine Fruit Ripening and Quality Assessed Using the Index of Absorbance Difference (IAD)

Bonora¹,

Stefanelli²,

Costa³

2013

International Journal of Agronomy

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Consistency of fruit quality is extremely important in horticulture. Fruit growth and quality in nectarine are affected by fruit position in the canopy, related to the tree shape. The "open shaped" training systems, such as Tatura Trellis, improve fruit growth and quality. The Index of Absorbance Difference ( AD ) is a new marker that characterizes climacteric fruit during ripening. A study on fruit ripening was performed by using the AD on nectarine to monitor fruit maturity stages of two cultivars trained as Tatura Trellis in Victoria, Australia. Fruit of cv "Summer Flare 34" ("SF34") grown in different positions on the tree showed high ripening homogeneity. Fruit harvested at a similar ripening stage showed fruit firmness and soluble solid content homogeneity. Fruits from hand-thinned variety "Summer Flare 26" ("SF26") were larger in size, had advanced ripening, and showed greater homogeneity. For "SF26", a weak correlation between AD and SSC was observed. The experiment showed that the Tatura Trellis training system is characterized by high homogeneity of nectarine fruit when coupled with a proper management of fruit density. It also confirmed that the AD could be used as new nondestructive maturity index for nectarine fruit quality assessment in the field.

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Section: Discussioncontrasting

confidence: 56%

Section: International Journal Of Agronomymentioning

confidence: 99%

Nectarine Fruit Ripening and Quality Assessed Using the Index of Absorbance Difference (IAD)

Bonora¹,

Stefanelli²,

Costa³

2013

International Journal of Agronomy

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“…The chlorophyll absorption might be a certain method to determine the real maturation stage of the fruits. High correlations between the chlorophyll absorption and the level of maturation were reported for several fruits, including plums (Ziosi et al, 2008;Infante et al, 2011). Moreover, the absorption of chlorophyll could be a reliable method to determine the actual ripeness state of the plum fruit (Infante et al, 2011).…”

Section: Chlorophyll Contentmentioning

confidence: 99%

The Changes of Polyphenols, Flavonoids, Anthocyanins and Chlorophyll Content in Plum Peels during Growth Phases: from Fructification to Ripening

Vlaic

Mureşan

Mureșan

et al. 2018

Not Bot Horti Agrobo

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Samples from 'Stanley', 'Vânăt de Italia' and 'Tuleu Gras' plum cultivars were collected from two different positions of the tree crown (i.e., inside, and periphery of the crown) at six different harvesting times, starting with the phase when plum fruits were the size of a bean until they reached full maturity at 21 days intervals. The main phytochemicals of plum skin during fruit development were analyzed. Total polyphenols from plum skin showed variations throughout the fruit growth (200.6 to 1244.5 mg GAE 100g -1 ), a relatively ascending trend being noticed. For 'Stanley' DPPH-Scavenging Activity, statistically insignificant differences (p > 0.05), with values between 47.4% and 51.5%, were found, similar trends being observed for 'Vânăt de Italia' and 'Tuleu Gras'. The total flavonoid content in the analyzed plum fruits statistically significantly decreased (p < 0.05) from fructification to ripening for 'Stanley' and 'Tuleu Gras'. On the other hand, variations were registered for 'Vânăt de Italia' cultivar which had the highest flavonoid content on the sixth harvesting phase. Anthocyanin content accumulated in 'Vânăt de Italia' plum peel showed increasing values during fruit development, regardless of the harvesting phase, variety or position, while a slightly decreasing trend was found for 'Stanley' and 'Tuleu Gras' varieties. The largest quantity of total chlorophyll (287.4 µg g -1 ) was found in the fructification phase, followed by a continuous decrease until ripening, whatever the variety or crown position.

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“…One of the options is the DA-Meter based on chlorophyll absorbance (index of absorbance difference), which allows sorting fruits into different groups according to their maturation [15,16]. However, because of large differences in fruit ripening-rate patterns and specific pericarp characteristics, the response is cultivar-dependent, and requires large investigation to properly calibrate the measure [17].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Late-Maturing Peach and Nectarine Fruit Quality by Chemical, Physical, and Sensory Determinations

2019

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In this work, both analytical and sensory determinations were carried out to evaluate the quality of yellow (‘Summerset‘, ‘Tardiva 2000‘, ‘Fairtime”, ‘Guglielmina’) and white flesh (‘Daniela’) late-ripening peach and nectarine (‘California’ and ‘Fairlane’) cultivars. Analytical measurements included weight, diameter, soluble solid content, titratable acidity, pH, and peel color. To describe and quantify the peach and nectarine sensory profile, a panel of 10 judges generated 15 descriptors. According to univariate analysis of fruit quality attributes, ‘Fairtime’, ‘Summerset, ‘Daniela’, and ‘California’ produced large and attractive fruits with an extensive red peel color. On the other hand, ‘Guglielmina’, ‘Daniela’, ‘Tardiva 2000’, and ‘Fairlane’ produced superior quality fruit in terms of soluble solids, titratable acidity, sweetness, and flavor. The white flesh peach ‘Daniela’ produced fruits with the best balance between external and internal quality. Cluster analysis on standardized component coordinates from biplot analysis allowed for the identification of two main groups. One group included ‘Daniela’, ‘Guglielmin’, ‘Tardiva 2000’, and ‘Fairlane’, along with attributes that are more indicative of ripe fruit such as soluble solids, sweetness, sugar/acid, juiciness, ground color index, peel color uniformity, flesh color intensity, mealiness, peach odor and flavor, and flower odor and flavor. The other group included ‘Summerset’, ‘Fairtime’, and ‘California’ along with weight, diameter, consistency, flesh firmness, percentage of cover color, bitterness, titratable acidity, sour odor and flavor, and grassy odor and flavor. The dual approach adopted in this study indicates that cultivars with large and attractive fruits are often lacking real eating quality. This poses serious doubts on the real value of exterior appearance for recognizing high-quality peaches and nectarines.

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Determination of harvest maturity of D'Agen plums using the chlorophyll absorbance index

Cited by 22 publications

References 6 publications

Nectarine Fruit Ripening and Quality Assessed Using the Index of Absorbance Difference (IAD)

Nectarine Fruit Ripening and Quality Assessed Using the Index of Absorbance Difference (IAD)

The Changes of Polyphenols, Flavonoids, Anthocyanins and Chlorophyll Content in Plum Peels during Growth Phases: from Fructification to Ripening

Evaluation of Late-Maturing Peach and Nectarine Fruit Quality by Chemical, Physical, and Sensory Determinations

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