Fruit development of Carina (Shiraz × Sultana) in response to growth regulators applied at calyptra dehiscence

1983 ◽  
Vol 23 (121) ◽  
pp. 216 ◽  
Author(s):  
RM Cirami ◽  
AP Chapman ◽  
MG McCarthy
Keyword(s):  
Growth Regulators ◽  
Mechanical Treatment ◽  
South Australia ◽  
Soluble Solids ◽  
Male Sterile ◽  
Yield And Quality ◽  
Dried Fruit ◽  
Pressure Water ◽  
Selection Of

Growth regulators known to improve yield and quality of Zante and a mechanical treatment utilizing high velocity air and a high pressure water spray to physically dislodge the calyptras were applied at dehiscence in 1979 and 1980 to vines of Carina, a male-sterile hybrid selection of Shiraz x Sultana. The vines were grown in the Barossa Valley, South Australia. The mechanical treatment was ineffective in dislodging the calyptras and there were no significant differences in yield or components of yield between treated and untreated vines in either year. The three growth regulators, CCC 100 ppm + GA 1 ppm, 4-CPA 20 ppm + GA 0.5 ppm, and GA 10 ppm, had marked effects on yield and components of yield, but the response varied between sprays and between years. In 1980 4-CPA + GA produced more berries per bunch, heavier bunches and more fresh fruit per vine than both CCC + GA and GA, while in I98 1, 4-CPA + GA and GA were superior to CCC + GA. There were no differences in concentration of soluble solids, pruning weight or dried berry weight in either year. The processed dried fruit of all treatments was of excellent quality.

scholarly journals Effect of Press Construction on Yield and Quality of Apple Juice

2019 ◽  
Vol 11 (13) ◽  
pp. 3630 ◽  
Author(s):  
Kamil Wilczyński ◽  
Zbigniew Kobus ◽  
Dariusz Dziki
Keyword(s):  
Apple Juice ◽  
Total Content ◽  
Screw Press ◽  
Soluble Solids ◽  
Apple Variety ◽  
Yield And Quality ◽  
Juice Extraction ◽  
Health Promoting ◽  
Selection Of

The paper presents the possibility of applying different press constructions for juice extraction in small farms. The research was carried out with three different varieties of apples, namely, Rubin, Mutsu, and Jonaprince. Two types of presses were tested: a basket press and a screw press. Generally, application of the screw press makes it possible to obtain a higher yield of extraction compared to the basket press. In our study, the differences in the pressing yield among press machines also depended on the apple variety used. The juices obtained on the screw press were found to be of a higher quality characterized by a higher content of soluble solids, higher viscosity, higher total content of polyphenols, higher antioxidant activity, and lower acidity. Thus, the selection of an appropriate press is the key to producing high-quality apple juice with health-promoting properties for manufacturers of apple juice at the local marketplace.

Effect of some growth regulators on yield and quality of sweetmelon and muskmelon

1982 ◽  
Vol 98 (3) ◽  
pp. 645-649 ◽  
Author(s):  
E. El-Kholy ◽  
H. Hafez ◽  
F. Naeem
Keyword(s):  
Growth Regulators ◽  
Indole Acetic Acid ◽  
Total Yield ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Ascorbic Acid Concentration ◽  
Yield And Quality ◽  
Yield Quality ◽  
Better Than

SUMMARYThis study was carried out at Elminia University farm in two years (1978 and 1980) to evaluate the effect of some growth regulators on the production of sweetmelon and muskmelon. It was found that plants treated with some growth regulators were earlier and yielded better than untreated ones, except that in the first trial (1978), the total yield of plants treated with indole acetic acid (IAA) was less than that of the control. The highest early and total yields of both sweetmelon and muskmelon resulted from spraying ethrel on the foliage. Fruit weight and length and flesh thickness were increased by some growth substances compared with the control for both crops. Also, percentage of total soluble solids and ascorbic acid concentration increased markedly as a result of growth-regulator treatments for sweetmelon and muskmelon. Generally, two sprays of ethrel solution produced the most consistent effects on yield and yield quality in the two trials with both sweetmelon and muskmelon.

Quality of fresh and dried fruit of apricot (cv. Moorpark) in response to soil-applied nitrogen

2006 ◽  
Vol 46 (1) ◽  
pp. 123 ◽  
Author(s):  
M. A. Rettke ◽  
T. R. Pitt ◽  
N. A. Maier ◽  
J. A. Jones
Keyword(s):  
Sulfur Dioxide ◽  
Block Design ◽  
Nitrogen Concentration ◽  
South Australia ◽  
Prunus Armeniaca ◽  
Soluble Solids ◽  
Nitrogen Application ◽  
Dried Fruit ◽  
Applied Nitrogen

The effects of soil applications of nitrogen on the quality of fresh and dried fruit from 12-year-old apricot Prunus armeniaca cultivar Moorpark trees growing on an orthic Tenosol in the Riverland region of South Australia were studied over 3 years. The experiment was set up in a randomised complete block design with 6 annual rates of nitrogen (0, 250, 500, 750, 1000 and 1250 g/tree.year) applied in the form of ammonium nitrate. Application was split into 30% at budburst, 30% six weeks after budburst and 40% after harvest. Firmness of fruit was significantly reduced as the rate of applied nitrogen increased. The flesh of individual fruits ripened more evenly when 0 or 250 g nitrogen/tree.year was applied, compared with rates in the range 500–1250 g nitrogen/tree.year. Application of nitrogen significantly increased the pH of fruit. The total soluble solids level of fruit from trees that received 0 or 250 g nitrogen/tree.year, was significantly lower than from trees that received 750 or 1250, but not 1000 g nitrogen/tree.year. Application of nitrogen did not significantly affect the concentration of sulfur dioxide in fresh fruit measured after sulfuring, but the concentration of sulfur dioxide in fruit at the completion of drying was significantly increased. The application of nitrogen did not affect the drying ratio of fruit. Nitrogen application increased the rate of darkening of dried apricots in storage in each of the three years. Relationships were found between time taken for dried apricots to darken to an unacceptable level and nitrogen concentration in harvested fruit. It is suggested that to assist in the management of darkening of dried apricots in storage, annual nitrogen application rates on an orthic Tenosol need to be below 500 g/tree.year and ideally below 250 g/tree.year.

scholarly journals Foliar Urea with N-(n-butyl) Thiophosphoric Triamide for Sustainable Yield and Quality of Pineapple in a Controlled Environment

2021 ◽  
Vol 13 (12) ◽  
pp. 6880
Author(s):  
Mohammad Amdadul Haque ◽  
Siti Zaharah Sakimin ◽  
Phebe Ding ◽  
Noraini Md. Jaafar ◽  
Mohd Khanif Yusop ◽  
...  
Keyword(s):  
Nitrogen Loss ◽  
Growth Yield ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Urea Solution ◽  
Urease Inhibitor ◽  
N Losses ◽  
N Accumulation ◽  
Yield And Quality

In agricultural production, nitrogen loss leads to economic loss and is a high environmental risk affecting plant growth, yield, and quality. Use of the N fertilizer with a urease inhibitor is thus necessary to minimize N losses and increase the efficiency of N. This study aimed to evaluate the effects of N-(n-butyl) Thiophosphoric Triamide (NBPT) on the growth, yield, and quality of pineapple. The experiment involved two foliar fertilizer treatments: 1% (w/v) urea solution with NBPT (2.25 mL kg−1 urea) was treated as NLU (NBPT Liquid Urea), and the same concentration of urea without NBPT served as the control. Both were applied 12 times, starting 1 month after planting (MAP) and continuing once a month for 12 months. The application of urea with NBPT notably increased the above-ground dry biomass per plant (20% and 10% at 8 and 12 MAP, respectively), leaf area per plant (23% and 15% at 8 and 12 MAP, respectively), N accumulation per plant (10%), PFPN (Partial Factor Productivity) (13%), and average fruit weight (15%) compared to the treatment with urea alone (control). The analysis of quality parameters indicated that urea with NBPT improves TSS (Total Soluble Solids) (19%), ascorbic acid (10%), and sucrose (14%) but reduces the total organic acid content (21%) in pineapple. When using urea with a urease inhibitor (NBPT), there was a significant improvement in growth, yield, quality, and nitrogen use efficiency, with the additional benefit of reduced nitrogen losses, in combination with easy handling. Hence, urea with a urease inhibitor can be used as a viable alternative for increasing pineapple yield by boosting growth with better fruit quality.

scholarly journals Yield and quality of strawberry cultivars

2010 ◽  
Vol 28 (2) ◽  
pp. 222-226 ◽  
Author(s):  
Luis Eduardo C Antunes ◽  
Nara Cristina Ristow ◽  
Ana Cristina R Krolow ◽  
Sílvia Carpenedo ◽  
Carlos Reisser Júnior
Keyword(s):  
Statistical Design ◽  
Rio Grande ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Experimental Unit ◽  
Rio Grande Do Sul ◽  
Yield And Quality

The strawberry cultivation is an important economic activity in the Rio Grande do Sul State, Brazil, however the number of offered cultivars to the growers is reduced. The yield and quality of strawberry (Fragaria x ananassa Duch.) cultivars Camarosa, Galexia, Earlibrite, Festival, Plarionfre and Sabrosa was evaluated under the climatic conditions of Pelotas, Rio Grande do Sul State. We determined the number, mass, total soluble solids (TSS ºBrix), total titratable acidity (TTA), antocianin level and fresh fruits produced in an experimental unit. We also determined the production of fruits per hectare and per plant. The statistical design used in the experiment was of completely randomized blocks with 6 treatments (cultivars) and 4 replicates where the experimental unit was composed of 8 plants. The harvest began in the first half of August, extending to the second half of December, totalling 20 weeks. Plarionfre, Earlibrite and Festival cultivars showed higher production from the first half of October until the end of the first half of November. Camarosa reached higher productivity, mass of plants and fruit weight. There were no differences between the evaluated cultivars in the levels of TSS, antocianin, ATT and pH during the period of evaluation.

scholarly journals Phosphorus (P) improves industrial tomato quality and yield in soil with high phosphorus content

2020 ◽  
pp. 1335-1341
Author(s):  
Arthur Bernardes Cecílio Filho ◽  
Bruno Trevizaneli ◽  
Sergio Manuel Rugeles Reyes
Keyword(s):  
Soluble Solids ◽  
Tomato Crop ◽  
Nutrient Contents ◽  
Soil P ◽  
Yield And Quality ◽  
P Content ◽  
Tomato Processing ◽  
Commercial Yield ◽  
Solids Content

Soils under intensive and successive cropping with central pivot irrigation tend to present high nutrient contents, especially phosphorus (P), which is a nutrient with a great impact on the yield and quality of agricultural products. Among the rotating crops, the application of high P rates is common in processing tomato, although not supported by research. This work evaluates the effect of phosphate fertilization (0, 200, 400, 600, 800, and 1000 kg ha-1 P2O5) on the yield and quality of industrial tomato ‘Heinz 9553’ grown in a soil with high available P content (145 mg dm-3) resulting of an intensive vegetables cultivation, which have high demand by P. The highest total (127.4 t ha-1) and commercial (108.6 t ha-1) yields were obtained with 413.9 and 384 kg ha-1 P2O5, respectively. The results showed that pH of tomato juice, the percentages of green, red, and commercial fruits were not influenced by the applied P rates. However, nutrient delivery increased the soluble solids content up to 356 kg ha-1 P2O5, which is interesting for tomato processing. After harvesting the fruits, the available soil P content was increased with P supply to the plants. For improvement of commercial yield and soluble solids characteristics, the tomato crop shall be fertilised with P even though the soil has high P content.

scholarly journals Melon fruit yield and quality as a function of doses and times of biostimulant application

2020 ◽  
Vol 9 (7) ◽  
pp. e130973911
Author(s):  
Roberto Cleiton Fernandes de Queiroga ◽  
Zaqueu Lopes da Silva ◽  
Odair Honorato Oliveira de ◽  
Elidayane da Nóbrega Santos ◽  
Higínio Luan Oliveira Silva ◽  
...  
Keyword(s):  
Block Design ◽  
Fruit Production ◽  
Soluble Solids ◽  
Application Time ◽  
Time Of Application ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Semi Arid Region ◽  
Fruit Mass

The objective of this study was to evaluate the productivity and quality of melon fruits as a function of the dose and time of application of biostimulant in the conditions of the semi-arid region of Paraíba. The experiment was carried out at the Federal University of Campina Grande, campus of Pombal - PB, Brazil, in a randomized block design in a 4 x 5 split plot scheme, with doses of biostimulant (0; 0.5; 1.0; 1, 5 and 2.0 L ha-1) and in the subset of the biostimulant application times (15; 20; 25 and 30 days before harvest - DAC), in four replications. Characteristics related to fruit production and quality were evaluated. There was no interaction between the factors of dose and application time of the biostimulant in any of the evaluated characteristics. Thus, the highest estimated values of number of fruits per plant, fruit mass and total melon production were obtained with the application of doses ranging from 0.9 to 1.5 L ha-1 and at the time of application it varied from 22,5 to 23.6 DAC. The content of soluble solids increased 5.5% when the biostimulant dose of 2.0 L ha-1 was used and 4.4% when the product was applied 15 days before harvest.

scholarly journals technical level of small-town shoemaking in Gdańsk Pomerania in the 14th century

2021 ◽  
Vol 28 ◽  
Author(s):  
Karolina Blusiewicz
Keyword(s):  
Mechanical Treatment ◽  
Professional Knowledge ◽  
The Other ◽  
Raw Material ◽  
Animal Origin ◽  
Late Medieval ◽  
14Th Century ◽  
Purposeful Selection ◽  
Selection Of

Based on the late medieval leather artefacts from Puck, Gniew, Lębork and Chojnice, an attempt was made to assess the level of shoemaking production at that time. Microscopic analyses of leather goods and production waste proved that in the field of tanning the activities related to the mechanical treatment of leather were carefully performed, although with insufficient professional knowledge concerning the process. The results of the identification of the animal origin of the leather confirmed the purposeful selection of raw material with different properties for individual footwear elements and the ability to properly cut it. The quality of the shoemaking products was highly rated in terms of technology and style. However, in the analysed collections a clearly perceptible difference in craftsmanship and assortment of products from Gniew and the other three towns was noticed.

Response of mown pasture to potassium fertilizer in south-eastern South Australia

1977 ◽  
Vol 17 (88) ◽  
pp. 765 ◽  
Author(s):  
AP Meissner ◽  
AL Clarke
Keyword(s):  
South Australia ◽  
Subterranean Clover ◽  
Multivariate Regression Analysis ◽  
Magnesium Concentration ◽  
Yield Response ◽  
Regression Equations ◽  
Potassium Fertilizer ◽  
Factors Affecting ◽  
Yield And Quality

Trials lasting three years were conducted at 27 sites in the south-east of South Australia to examine the responses of mown subterranean clover-ryegrass pastures to repeated annual applications of potassium chloride. At 20 sites, yield of dry matter (DM) was increased by potassium in one or more harvests. Responses were measured in 9 out of 55 winter harvests and 42 out of 86 spring harvests; mean responses to 100 kg ha-1 KCl (-Y100) at responsive sites were 380 and 560 kg DM ha-1 in winter and spring respectively. When potassium dressing increased yield, the proportion of clover in the sward was either maintained or increased. The herbage concentration of potassium was usually increased, and its magnesium concentration sometimes depressed, by potassium application. Although the K:Mg ratio was thereby increased, especially during winter, it rarely reached 15, the value considered necessary to induce grass tetany in cattle. Multivariate regression analysis showed that the exchangeable potassium concentration (Kex) of the top 10 cm of soil, the depth of soil overlying clay or limestone, and the sand content of the topsoil were factors affecting yield response. The best regression equations, however, explained less than half of the response variations. In practice, Kex alone would have usefully diagnosed potassium responsive sites. Responses occurred often when Kexwas less than 0.2 me 100 g-1 and rarely when it was greater. The use of potassium fertilizer is likely to be worthwhile to establish new pasture, to maintain the clover content of old pasture, and to increase the yield and quality of hay, where soils have less than 0.20 me 100 g-1 Kex. Such soils are most commonly sands more than 30 cm deep.

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