scholarly journals The influence of Atonik SL, Betokson Super 050 SL and InsolCa on yielding of strawberry (Fragaria x ananassa Duch.) cv. ‘Senga Sengana’ and ‘Kent’

2014 ◽  
Vol 67 (2) ◽  
pp. 99-108 ◽  
Author(s):  
Iwona Szot ◽  
Tomasz Lipa ◽  
Alina Basak
Keyword(s):  
Ascorbic Acid ◽  
Fruit Quality ◽  
Climatic Conditions ◽  
Fragaria X Ananassa ◽  
Anthocyanin Content ◽  
Growing Period ◽  
Fruit Maturity ◽  
Cultivation Technology ◽  
Maturity Degree

The chemical composition of strawberry fruit depends mainly on cultivar, fruit maturity degree and climatic conditions in the growing period. Fruit quality is also determined by a cultivation technology. The influence of two biostimulants (Atonik SL and Betokson Super 050 SL), which were used separately, in combination with each other or with the liquid fertilizer InsolCa, on yielding and fruit quality of two strawberry cultivars: ‘Senga Sengana’ and ‘Kent’, was tested. Betokson Super 050 SL + InsolCa tended to improve the yield of both cultivars. Significant differences compared to the control were evident especially in 2001. Fruits of ‘Senga Sengana’ started ripening later and had more ascorbic acid, anthocyanins and acidity than ‘Kent’. The use of Betokson Super 050 SL + InsolCa improved the content of ascorbic acid, anthocyanins and sugar as well as acidity in strawberries of both cultivars. The use of Betokson Super 050 SL + Atonik SL significantly increased the content of ascorbic acid and sugar in fruits of both cultivars. ‘Kent’ strawberries also responded to the treatment with an increase in anthocyanin content and acidity.

THE FRUIT QUALITY OF PLUMS (PRUNUS DOMESTICA L.) AS RELATED TO YIELD AND CLIMATIC CONDITIONS

2007 ◽  
pp. 425-429 ◽  
Author(s):  
E. Vangdal ◽  
A. Døving ◽  
F. Måge
Keyword(s):  
Fruit Quality ◽  
Climatic Conditions ◽  
Prunus Domestica

scholarly journals Harvest Season and Genotype Affect Head Quality and Shelf-Life of Ready-to-Use Broccoli

Agronomy ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 527 ◽  
Author(s):  
Giulia Conversa ◽  
Corrado Lazzizera ◽  
Anna Bonasia ◽  
Antonio Elia
Keyword(s):  
Ascorbic Acid ◽  
Dehydroascorbic Acid ◽  
Visual Quality ◽  
Dry Weight ◽  
Climatic Conditions ◽  
Total Phenol ◽  
Slight Reduction ◽  
Post Harvest ◽  
Dry Matter Concentration

Pre-harvest climatic conditions and genotype may have important effects on head quality and post-harvest performance of fresh-cut broccoli. The present work evaluates the effect of the growing cycle (summer–autumn (SA), winter (W), winter–spring (WS), and spring (S)) and genotype on qualitative (dry matter, concentration of chlorophylls, carotenoids, and color) and antioxidative (ascorbic acid, dehydroascorbic acid, total phenol concentrations, and antioxidant capacity) traits of broccoli heads and minimally processed florets. The WS raw product showed the best color indices (L* = 38.6, C* = 9.3 and h° = 123.8) as well as the highest chlorophyll (0.23 µg mg−1 fresh weight) but the lowest total phenol concentration (5.5 µg mg−1 dry weight - DW), whereas the ascorbic acid level (2.3 µg mg−1 DW) was comparable to or lower than that the other growing cycles. The WS florets confirmed their best visual quality, even showing an improved total phenol level after 14 days of cold storage. The climatic conditions experienced by broccoli plants grown in SA, W, and S periods were stressful as they resulted in a slight reduction in the visual quality of the heads, though only the SA florets showed a distinctive decay during storage. The lower post-harvest performance of SA grown broccoli was confirmed in all the tested cultivars, despite ‘Naxos’ seeming more tolerant. On the contrary, the greatest content of ascorbic acid (3.2 µg mg−1 DW) in the W heads and of phenols (11.1 µg mg−1 DW) in S heads was maintained during storage, thus preserving floret color.

Effects of postharvest topping, autumn cincturing, and paclobutrazol on growth, yield, and fruit quality of the low chill nectarine cv. Sundowner in subtropical Australia

1993 ◽  
Vol 33 (3) ◽  
pp. 353 ◽  
Author(s):  
AP George ◽  
RJ Nissen ◽  
T Rassmussen
Keyword(s):  
Fruit Quality ◽  
Seasonal Pattern ◽  
Growth Yield ◽  
Tree Size ◽  
Yield Efficiency ◽  
Fruit Maturity ◽  
Canopy Volume ◽  
Effect On Yield ◽  
Subtropical Australia

Combinations of 3 methods of controlling tree size (use of the growth retardant paclobutrazol, postharvest topping, and autumn cincturing) were evaluated for their effects on growth, yield, and fruit quality of the low chill nectarine cv. Sundowner in subtropical Australia. Compared with controls over 3 seasons, paclobutrazol used alone reduced tree size by 34-52%, with further reductions when combined with light and severe postharvest topping (by 5-25 and 58-71%, respectively). Yield efficiency (as measured by yield per unit canopy volume) was significantly improved by paclobutrazol and was doubled when paclobutrazol was combined with severe postharvest topping. Although this combination reduced time associated with pruning, thinning, and harvesting, it had the disadvantage of delaying flowering and, consequently, fruit maturity in the subsequent harvest season. Light postharvest topping and autumn cincturing used with paclobutrazol had little effect on yield efficiency, fruit quality, or harvest period. The seasonal pattern of starch reserves for twigs was similar for all treatments, with starch levels falling to a minimum during the early harvest period. Measurements of starch in the major tree organs showed that at very low harvest increments (<10) there was little or no depletion of starch from the twigs and leaves, but as harvest increments increased (range 10-40), there was increasing starch depletion, in order of priority, from the roots, trunks, and limbs.

scholarly journals Bamboo Biochar Pyrolyzed at Low Temperature Improves Tomato Plant Growth and Fruit Quality

Agriculture ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 153 ◽  
Author(s):  
Ratna Suthar ◽  
Cun Wang ◽  
M. Nunes ◽  
Jianjun Chen ◽  
Steven Sargent ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Plant Growth ◽  
Fruit Quality ◽  
Growth Index ◽  
Application Rate ◽  
Soluble Solids ◽  
Solanum Lycopersicum L ◽  
Different Temperatures ◽  
Solids Content

As a soil amendment, biochar can significantly improve soil quality and crop growth. Few studies, however, have explored biochar effects on crop quality. This study investigated the amendment effects of bamboo biochar pyrolyzed at different temperatures on plant growth and fruit quality of tomato (Solanum lycopersicum L.). Tomato ‘Micro-Tom’ plants were grown in a sand medium amended with 0, 1, and 3% of biochars produced at 300 °C, 450 °C, and 600 °C, respectively. Plant growth was monitored, and fruit harvested at the red stage was analyzed for color, texture, soluble solids content, sugars, ascorbic acid, and acidity. Results showed that biochars produced at 300 °C and amended at 3% or pyrolyzed at 450 °C and amended at 1% increased plant growth index. Contents of glucose, fructose, soluble solids, ascorbic acid, and sugar-to-acid ratios of fruits produced from the two treatments were significantly higher than the other treatments. The improved plant growth and fruit quality were related to the higher concentrations of NO3, P, Ca, and Mg in the growing media. Our results suggest that optimizing biochar use can be achieved by targeting biochar production conditions and application rate, which resulted in desirable amendment and fruit quality effects.

Effect of Pre-Harvest Sprays of Ascorbic Acid, Calcium Chloride and Ethephon on Fruit Quality of Grapes (Vitis vinifera L.)

2017 ◽  
Vol 6 (1) ◽  
pp. 71
Author(s):  
Niraj Kumar ◽  
N K Arora ◽  
Gagandeep Kaur ◽  
M I S Gill ◽  
J S Brar
Keyword(s):  
Ascorbic Acid ◽  
Vitis Vinifera ◽  
Calcium Chloride ◽  
Fruit Quality ◽  
Vitis Vinifera L

Agro-climatic conditions affect fruit quality of mandarin (Citrus reticulata Blanco) cultivars

Fruits ◽  
2017 ◽  
Vol 72 (6) ◽  
pp. 341-349
Author(s):  
S.B. Hussain ◽  
◽  
M.A. Anjum ◽  
S. Hussain ◽  
S. Ejaz ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Climatic Conditions ◽  
Citrus Reticulata ◽  
Citrus Reticulata Blanco

scholarly journals Post-harvest quality of pineapple guava [Acca sellowiana (O. Berg) Burret] fruits produced in two locations at different altitudes in Cundinamarca, Colombia

2018 ◽  
Vol 36 (1) ◽  
pp. 68-78
Author(s):  
Alfonso Parra-Coronado ◽  
Gerhard Fischer ◽  
Jesús Camacho-Tamayo
Keyword(s):  
San Francisco ◽  
Fruit Quality ◽  
Climatic Conditions ◽  
Solid Content ◽  
Annual Precipitation ◽  
Soluble Solid Content ◽  
Post Harvest ◽  
Pineapple Guava ◽  
Average Annual Precipitation

The quality of pineapple guava fruits during post-harvest storage depends directly on their quality at harvest and is influenced by climatic conditions during growth. The aim of this study was to determine the influence of climatic conditions on certain parameters of fruit quality during post-harvest storage. Twenty trees were tagged in two locations within the department of Cundinamarca (Colombia), recording the climatic conditions during fruit growth until harvest. The fruits were differentiated by place of origin and stored at 18 ± 1ºC (76 ± 5% relative humidity, RH) for 11 d or 5 ± 1ºC (87 ± 5% RH) for 31 d, evaluating several quality attributes every two d. The places of origin were San Francisco de Sales (1,800 m a.s.l., 20.6oC, 63-97% RH, with an average annual precipitation of 1,493 mm) and Tenjo (2,580 m a.s.l., 12.5oC, 74-86% RH, with an average annual precipitation of 765 mm). The results indicated that the fruits stored at the highest temperature were sweeter and had reduced weight and firmness, lower acidity, and faster postharvest senescence (lower post-harvest durability). The postharvestN fruit characteristics were determined by considering the fruit quality during growth and the influence of climatic conditions during cultivation in each location. At the higher altitudes, the total soluble solid content in the fruits was higher and firmness decreased, and the total titratable acidity and weight loss were lower. For fruit color, significant differences were not observed that would demonstrate the effect of climatic conditions during the post-harvest period.

scholarly journals Dependence of the content of ascorbic acid in apples at the beginning and at the end of storage on the hydrothermal conditions of the growing season

2020 ◽  
pp. 24-31
Author(s):  
A. L. Nikitin ◽  
M. A. Makarkina
Keyword(s):  
Ascorbic Acid ◽  
Calculated Data ◽  
Growing Season ◽  
Thermal Coefficient ◽  
Hydrothermal Conditions ◽  
Fruit Storage ◽  
Hydrothermal Coefficient ◽  
Fruit Maturity ◽  
Calendar Dates

The degree of fruit maturity varies from year to year, depending on hydrothermal conditions, and therefore it is impossible to focus only on the calendar dates of harvesting due to their seasonal changes. The keeping capacity and quality of apples have variety specificity and depend, among other factors, on the meteorological conditions of the growing season. The analysis of the quantitative content of ascorbic acid (AA) in the fruits of five new columnar scab immune apple varieties – Vostorg, Zvezda Efira, Poezia, Priokskoye and Sozvezdiye at the beginning and at the end of storage in different years (2012, 2014, 2016, 2018) showed the closest dependence of this parameter on the conditions of humidification of the active growing season (hydro-thermal coefficient (HTC)). The dependence of the AA content in fruits on the hydrothermal coefficient was approximated by the second-order parabola equation. Certain regularity was revealed in the content of AA in fruits depending on HTC. The parabolic curve, reflecting the maximum calculated AA content, increases to maximum values at HTC – 0.85-0.90 at the beginning of fruit storage and 0.79-0.89 at the end of storage. Under droughty conditions, the dependence curve decreases. The comparison of the experimental data with calculated data showed that the correlation relations between them had values from 0.61 to 0.88 at the beginning of storage and 0.40-0.99 at the end. The calculated data can be interpolated, and it makes sense to use HTC as one of the predictor parameters of fruit quality during harvesting and potential keeping capacity of fruits.

Sign in / Sign up

Export Citation Format

Share Document