Effects of calcium and daminozide on ethylene production and softening of apple fruits

1979 ◽  
Vol 35 (1) ◽  
pp. 43-44 ◽  
Author(s):  
E. C. Lougheed ◽  
D. P. Murr ◽  
S. R. Miller
Keyword(s):  
Ethylene Production ◽  
Apple Fruits

scholarly journals Estimation of Postharvest Quality of “Red Delicious” Apple Fruits Based on Fruit Nutrient Elements Composition

2016 ◽  
Vol 9 (1) ◽  
pp. 164
Author(s):  
Mahshid Doryanizadeh ◽  
Mahmood Ghasemnezhad ◽  
Atefeh Sabouri
Keyword(s):  
Respiration Rate ◽  
Cold Storage ◽  
Ethylene Production ◽  
Storage Time ◽  
Postharvest Quality ◽  
Mineral Nutrient ◽  
Nutrient Elements ◽  
Total Anthocyanin ◽  
Positive Significant Correlation ◽  
Apple Fruits

<p>Fruit nutrient elements content during harvest could considerably effect on postharvest life of apples. In this study, apple fruits cultivar Red Delicious were harvested at the commercial maturity stage at 20 commercial orchards. Fruits were divided into three groups according to peel color; dark red, medium and light red. The mineral elements nutrient content such as nitrogen, phosphorus, potassium, calcium and magnesium and their ratios were measured in the harvested fruits. Thereafter, fruits were places in the cold storage at 0 °C and relative humidity of 90% for 4 months. The characteristics such as fruits weight loss, firmness, TSS, dry matter, total anthocyanin content, antioxidant activity, respiration rate and ethylene production were measured at the end of storage. The results showed a positive significant correlation between fruit firmness at the end of storage time with N+K:Ca, K+Mg:Ca, K:Ca and Mg:Ca ratios. Furthermore, a negative significant correlation was found between total anthocyanin with Nitrogen content, Mg:Ca and N:Ca ratios. The results also showed a positive significant correlation between fruit respiration rate and Nitrogen, N+K:Ca and N:Ca ratios. The analysis of regression based on mean values of three red apple groups showed a significant negative correlation between total anthocyanin with fruit ethylene production at the storage time and Mg:Ca ratio. The relationship between these two variables and Anthocyanin was expressed by the equation of regression: Anthocyanin = 100.22–1.651 Ethylene–43.963 Mg:Ca. Overall, the results confirm that measurement of fruit mineral composition during harvest time could be a strategy for predicting postharvest behaviors of apple fruits at the cold storage. Also the results showed that a relationship between mineral nutrient composition and the characteristics such as firmness, anthocyanin, respiratory rate in apple fruits.</p>

Ethylene Production by Tomato and Apple Fruits

Nature ◽  
1960 ◽  
Vol 186 (4728) ◽  
pp. 902-903 ◽  
Author(s):  
D. F. MEIGH ◽  
K. H. NORRIS ◽  
C. C. CRAFT ◽  
M. LIEBERMAN
Keyword(s):  
Ethylene Production ◽  
Apple Fruits

ETHYLENE PRODUCTION AS AN INDEX OF MATURITY FOR APPLE FRUITS

1969 ◽  
Vol 49 (6) ◽  
pp. 805-807 ◽  
Author(s):  
R. B. Smith ◽  
E. C. Lougheed ◽  
E. W. Franklin
Keyword(s):  
Ethylene Production ◽  
Apple Fruits

not available

Variation of Phytochemicals Content in Pulp and Skin of Seven Romanian Apple Cultivars

2017 ◽  
Vol 68 (3) ◽  
pp. 474-477
Author(s):  
Lacramioara Oprica ◽  
Doina Atofanei ◽  
Vladimir Poroch
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Anthocyanin Content ◽  
Colour Intensity ◽  
Total Polyphenol ◽  
Valuable Source ◽  
Golden Delicious ◽  
Apple Cultivars ◽  
Apple Fruits

The amounts of anthocyanins, flavonoids, total polyphenol and ascorbic acid in seven apple cultivars from Romania were investigated. The amounts of polyphenol and flavonoids in pulp and skin of apple cultivars ranged between 17.18�7.52 mg GAE/g DW and 20.10�11.06 mg CE/g DW as well as 3.64�1.18 mg GAE/g DW and 10.31�5.57 mg CE/g DW, respectively. The highest and smallest values of ascorbic acid both in the skin and the pulp were observed in the cultivars Mutsu and Starkrimson. The anthocyanin content is positively correlated with the colour intensity of the apple epicarp, being about three-fold higher in Prima than Golden Delicious cultivar. The better antioxidant activity provided by the content of polyphenol, ascorbic acid and flavonoids was in apple fruits of Mutsu cultivar and for this reason it should be regarded as a valuable source of antioxidants.

Relationship of Ethylene Production to Elongation in Deepwater Rice 1

Crop Science ◽  
1987 ◽  
Vol 27 (6) ◽  
pp. 1188-1196 ◽  
Author(s):  
Anwar A. Khan ◽  
R. Thakur ◽  
M. Akbar ◽  
D. HilleRisLambers ◽  
D. V. Seshu
Keyword(s):  
Ethylene Production ◽  
Deepwater Rice ◽  
Relationship Of
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