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Impacts of different planting times on fruit quality and some bioactive contents of different strawberry cultivars

Nafiye Unal

Nafiye Unal

Department of Horticulture, Faculty of Agriculture, Akdeniz UniversityAntalya, Türkiye
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Unal, Nafiye
, 
Volkan Okatan

Volkan Okatan

Department of Horticulture, Faculty of Agriculture, Eskişehir Osmangazi UniversityTürkiye
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Okatan, Volkan
, 
Jale Bilgin

Jale Bilgin

Department of Horticulture, Faculty of Agriculture, Eskişehir Osmangazi UniversityTürkiye
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Bilgin, Jale
, 
Ibrahim Kahramanoğlu

Ibrahim Kahramanoğlu

Department of Horticulture, Faculty of Agricultural Sciences and Technologies, European University of Lefke, Gemikonagi, Northern CyprusTürkiye
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Kahramanoğlu, Ibrahim
 und 
Hanifeh Seyed Hajizadeh

Hanifeh Seyed Hajizadeh

Department of Horticultural Science, Faculty of Agriculture, University of MaraghehMaragheh, Iran
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Hajizadeh, Hanifeh Seyed
  
26. Juni 2023
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Artikel-Kategorie: ORIGINAL ARTICLE
Online veröffentlicht: 26. Juni 2023
Seitenbereich: 221 - 231
Eingereicht: 25. März 2023
Akzeptiert: 14. Apr. 2023
DOI: https://doi.org/10.2478/fhort-2023-0017
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© 2023 Nafiye Unal et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1.

Fruits of strawberry cultivars: (A): ‘Albion’; (B): ‘San Andreas’; (C): ‘Portola’.
Fruits of strawberry cultivars: (A): ‘Albion’; (B): ‘San Andreas’; (C): ‘Portola’.

Figure 2.

Impacts of different planting times on the fruit width, length, weight and firmness of strawberry fruits and total yield of per plant, SD of plants (A): fruit width (mm), (B): fruit length (mm), (C): FW (g), (D): yield (g · plant-1), (E): fruit firmness (kg · cm-2) and (F): stem diameter (mm)). FW, fruit weight; SD, stem diameter.
Impacts of different planting times on the fruit width, length, weight and firmness of strawberry fruits and total yield of per plant, SD of plants (A): fruit width (mm), (B): fruit length (mm), (C): FW (g), (D): yield (g · plant-1), (E): fruit firmness (kg · cm-2) and (F): stem diameter (mm)). FW, fruit weight; SD, stem diameter.

Figure 3.

Values of soluble solid concentration, pH, EC, TA and chlorophyll of strawberries (A): SSC (%), (B): pH (%), (C): EC, (D): TA (%), and (E): chlorophyll (SPAD)). EC, electrolyte conductivity; TA, titrable acidity.
Values of soluble solid concentration, pH, EC, TA and chlorophyll of strawberries (A): SSC (%), (B): pH (%), (C): EC, (D): TA (%), and (E): chlorophyll (SPAD)). EC, electrolyte conductivity; TA, titrable acidity.

Figure 4.

Values of colours of strawberry fruits [(A): L, (B): C and (C): h].
Values of colours of strawberry fruits [(A): L, (B): C and (C): h].

Figure 5.

Values of ascorbic acid (A), total phenolic compound (B) and total anthocyanin (C).
Values of ascorbic acid (A), total phenolic compound (B) and total anthocyanin (C).

Figure 6.

Hierarchical clustering for grouping study cultivars and planting dates.
Hierarchical clustering for grouping study cultivars and planting dates.

Figure 7.

Correlation analysis of the study parameters and cultivars. EC, electrolyte conductivity; FW, fruit weight; SD, stem diameter.
Correlation analysis of the study parameters and cultivars. EC, electrolyte conductivity; FW, fruit weight; SD, stem diameter.

Figure 8.

PCA biplot analysis of the study parameters, cultivars and planting dates.
PCA biplot analysis of the study parameters, cultivars and planting dates.

Soil properties of the study area_

Parameter Value Comment
pH 7.86 Alkali
Lime 16.36% High chalky
Organic matter 1.82% Poor
Structure 64.90% Clay loam
Salinity 0.051% Without salt
P2O5 (phosphorus) 10.72 ppm Medium
K2O (potassium) 179.79 ppm High
Ca (calcium) 43.50 ppm Rich
Mg (magnesium) 406.50 ppm Rich
Fe (iron) 1.72 ppm Little
Zn (zinc) 1.16 ppm Very high
Mn (manganese) 0.78 ppm Insufficient
Cu (copper) 2.54 ppm Sufficient

Mean comparison of the effect of different planting dates on the SSC/TA ratio (ripening index) of different cultivars of strawberry_

Planting time Strawberry cultivars SSC/TA
05.04.19 Albion 15.8 a
Portola 12.61 d
San Andreas 14.8 b
20.04.19 Albion 13.06 c
Portola 12.6 d
San Andreas 14.58 b
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