ETHEPHON AS A CHEMICAL HARVESTING AID FOR THE LATE SEASON HIGHBUSH BLUEBERRY COVILLE

1977 ◽  
Vol 57 (4) ◽  
pp. 1099-1102 ◽  
Author(s):  
F. R. FORSYTH ◽  
D. L. CRAIG ◽  
R. STARK
Keyword(s):  
Total Yield ◽  
Soluble Solids ◽  
Yield Reduction ◽  
Average Weight ◽  
Highbush Blueberry ◽  
Ripe Fruit ◽  
Titratable Acid ◽  
Berry Weight ◽  
The Mean ◽  
Solids Content

Single applications of ethephon (1,000 pm) were made at three treatment dates to 20-yr-old Coville highbush blueberry plants. Berry weight, titratable acid, soluble solids content and yield were recorded. Average weight per berry was not consistently different in treated berries than in untreated but in both years the second and third sprays decreased the mean berry weight faster than occurred in the controls or first spray. Total yield was only slightly affected by treatment, indicating that a yield reduction would not be expected through the use of ethephon. Ethephon increased the rate at which the soluble solids and titratable acid (as citric) reached the normal level for ripe fruit.

scholarly journals Watermelon Quality Traits as Affected by Ploidy

HortScience ◽  
2013 ◽  
Vol 48 (9) ◽  
pp. 1113-1118 ◽  
Author(s):  
Angela R. Davis ◽  
Charles L. Webber ◽  
Wenge Liu ◽  
Penelope Perkins-Veazie ◽  
Amnon Levi ◽  
...  
Keyword(s):  
Citrullus Lanatus ◽  
Inbred Lines ◽  
Statistical Correlation ◽  
Soluble Solids ◽  
Ripe Fruit ◽  
Ploidy Levels ◽  
Combining Data ◽  
The Family ◽  
Market Opportunities ◽  
The Mean

High-quality, high-phytonutrient watermelons [Citrullus lanatus (Thumb.), Matsum & Nakai] have strong market opportunities. To produce highly nutritious fruit in a seedless triploid market, the nature of phytonutrient accumulation as affected by ploidy must be understood. The present study performed on six field-grown watermelon diploid (2n) inbred lines, their induced autotetraploids (4n), and autotriploids (3n) determined the importance of ploidy on quality and nutritional content. Lycopene, total soluble solids (TSS), L-citrulline (hereafter referred to as citrulline), glutathione (GSH), weight, width, and length were measured in ripe fruit from one location. Our findings contradict some previous manuscripts, which did not use diploid inbred lines and their induced autoploidy relatives. Of the traits we analyzed that did not have a family-by-ploidy interaction (citrulline, GSH, weight, and width), we determined citrulline levels were not significantly affected by ploidy in five of six families nor was there a significant correlation when all family’s citrulline values were averaged. Previous studies on field-grown fruit that did not use autoploidy lines suggested triploid fruit had more citrulline than diploid fruit. GSH was higher in autotriploid than in diploid or autotetraploid (95.0 vs. 66.9 or 66.7 μg·g−1 GSH, respectively). Additionally, we found an association with higher GSH in larger fruit. Autotriploid fruit were, in general, heavier and wider than diploid and autotetraploid fruit, and autotetraploid fruit were generally smaller than diploid fruit. Of the traits we analyzed that had a family by ploidy interaction (lycopene, TSS, and length), we determined within four families, ploidy affected lycopene concentration, but whether this interaction is positive or negative was family-dependent. These data suggest the triploid state alone does not give fruit higher lycopene concentrations. The mean TSS was higher in autotetraploid than in autotriploid, which was again higher than in diploid fruit averaged across families (10.5%, 10.2%, and 9.5% TSS, respectively); there was a family × ploidy interaction so the significance of this increase is affected by the triploid’s parents. Lycopene and TSS had a slight positive correlation. Four of six families showed no statistical correlation between ploidy and length, and although mean length across family demonstrated smaller tetraploid fruit, the family-by-ploidy interaction demonstrates that this observation is family-dependent. Length and width correlate well with weight when combining data for all ploidy levels and when analyzing each ploidy separately. Length correlates more closely with width in autotriploid fruit than in diploid or autotetraploid fruit.

scholarly journals Postharvest Calcium Chloride Application and Moisture Barrier Influence on Peach Fruit Quality

2008 ◽  
Vol 18 (1) ◽  
pp. 100-105 ◽  
Author(s):  
G. Lysiak ◽  
W.J. Florkowski ◽  
S.E. Prussia
Keyword(s):  
Weight Loss ◽  
Calcium Chloride ◽  
Prunus Persica ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Peach Fruit ◽  
Titratable Acid ◽  
Acid Ratio ◽  
Polyethylene Bags ◽  
Solids Content

Peaches (Prunus persica) were evaluated for storability after dipping in a 2% calcium chloride (CaCl2) solution at 20 °C for 30 min and storing them at 4 °C for 2 weeks in boxes uncovered or covered with polyethylene bags. Generally, there were significant improvements in storability resulting from the CaCl2 and the polyethylene barrier. The CaCl2 treatment improved firmness, largely maintained the soluble solids content, and increased the ratio of soluble solids-to-titratable acid ratio. Polyethylene bags minimized weight loss, and two out of three times, bagged fruit had lower acids after storage than did the control.

The prediction of maturity in plums for prune production

1969 ◽  
Vol 9 (41) ◽  
pp. 648
Author(s):  
DMcG McBean ◽  
Nerida L Outhred ◽  
AA Johnson ◽  
GG Coote
Keyword(s):  
Specific Gravity ◽  
Rate Of Change ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Time Rate ◽  
The Mean ◽  
Predicted Values ◽  
Solids Content ◽  
Wire Basket

The production of good quality prunes requires plums with a minimum of 26 per cent soluble solids content before dehydration. Maturity in plums was studied by determining specific gravity and soluble solids at weekly intervals over several weeks beginning at the approach of harvest. The regressions of soluble solids on specific gravity were linear and homogeneous over all crops and years studied. The proposed procedure for predicting soluble solids content is based on the determination of specific gravity and soluble solids at a pre-harvest sampling. Specific gravity can be determined on 5-lb samples in the field using a convenient and cheap hydrometer made from a wire basket attached to a sphere and graduated tube which floats in a drum of water. The prediction procedure uses the time rate of change of soluble solids and the mean regression of soluble solids on specific gravity. Analyses of the experimental data were summarized and used to estimate standard errors of predicted values for various numbers of 5-lb samples. The recommended prediction procedure is exemplified numerically and illustrated in a diagram.

scholarly journals Berry quality of hybrid grapevine (Vitis) cultivars grown in the field and in a polytunnel

2019 ◽  
Vol 28 (3) ◽  
Author(s):  
Mariana Maante-Kuljus ◽  
Ele Vool ◽  
Leila Mainla ◽  
Marge Starast ◽  
Kadri Karp
Keyword(s):  
Acid Content ◽  
Phenolic Content ◽  
Cold Climate ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Climate Conditions ◽  
Titratable Acid ◽  
Berry Quality ◽  
Solids Content ◽  
Positive Effect

The aim of this research was to determine the effect of vineyard location and cultivation system (polytunnel compared to field) on hybrid grapevine berry quality in cold climate conditions. The study was conducted with the hybrid grapevine cultivars ‘Hasanski Sladki’, ‘Zilga’ and ‘Supaga’. Experimental vineyards were located at different sites in a polytunnel and in the field. Soluble solids content ranged from 13.8 to 25.4 °Brix. For all cultivars cultivation in the tunnel had a positive effect on soluble solids content for two experimental years out of three. Acid content was high, ranging from 1.04 to 1.76 g 100 g-1 FW. Growing ‘Zilga’ and ‘Supaga’ in the tunnel reduced titratable acid content every year but for ‘Hasanski Sladki’ in two years. Phenolic content ranged from 53 to 540 g 100 g-1 FW and anthocyanin from 30 to 162 mg 100 g-1 FW. Accumulation of phenols and anthocyanins were affected by location and cultivation methods. For ‘Hasanski Sladki’ in the tunnel, cultivation had a positive effect on phenolic content but for ‘Zilga’ not in every year.

scholarly journals SELECTION VIA MIXED MODELS IN SEGREGATING GUAVA FAMILIES BASED ON YIELD AND QUALITY TRAITS

2017 ◽  
Vol 39 (2) ◽  
Author(s):  
SILVANA SILVA RED QUINTAL ◽  
ALEXANDRE PIO VIANA ◽  
BIANCA MACHADO CAMPOS ◽  
MARCELO VIVAS ◽  
ANTONIO TEIXEIRA DO AMARAL JÚNIOR
Keyword(s):  
Block Design ◽  
Total Yield ◽  
Ascorbic Acid Content ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Individual Level ◽  
Selection Accuracy ◽  
Randomized Block Design ◽  
Solids Content

ABSTRACT Aiming at the generation of new guava varieties with superior attributes, we conducted this study adopting the REML/BLUP procedure at individual level. Seventeen segregating guava families were evaluated in a randomized-block design with two replicates and 12 plants per plot. Families were obtained after controlled biparental pollination. The studied individuals showed high genotypic variance for fruit weight (FW), total yield (YLD), and ascorbic acid content (AAC). The heritability coefficients of the mean of progenies led to high progeny-selection accuracy for pulp yield (PY), soluble solids content (SSC), in addition to FW, YLD, and AAC; moderate accuracy for fruit acidity (FA) and SSC/FA ratio; and low accuracy for mesocarp thickness (MT) and pH. Selection among families (h2mp) indicated the highest values for FW, PY, YLD, SSC, and AAC, revealing that, for the present study, this practice would be effective, since these traits allowed for the highest selection accuracy values among families. As for the ranking of individuals, families originating from crosses UENF 1835 × UENF 1834, UENF 1831 × UENF 1832, and UENF 1831 × UENF 3739 stood out, occupying the first positions for most traits.

scholarly journals An in vitro analysis of the total phenolic content, antioxidant power, physical, physicochemical, and chemical composition of Terminalia Catappa Linn fruits

2012 ◽  
Vol 32 (1) ◽  
pp. 209-213 ◽  
Author(s):  
Marcelo Rodrigues Marques ◽  
Diego Damasceno Paz ◽  
Lívia Patrícia Rodrigues Batista ◽  
Celma de Oliveira Barbosa ◽  
Marcos Antônio Mota Araújo ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Average Weight ◽  
Antioxidant Power ◽  
Terminalia Catappa ◽  
Solids Content ◽  
Vitro Analysis ◽  
In Vitro Analysis

This study assessed the antioxidant, total phenolic, and physicochemical properties of in vitro Terminalia Catappa Linn (locally called castanhola) using the DPPH assay. The castanhola fruits had an average weight of 19.60 ± 0.00 g, combining shell, pulp, and seed weight, and a soluble solids content of 8 °Brix. The chemical composition was determined with predominance of carbohydrates (76,88 ± 0,58%).The titration method was used to determine Vitamin C content using 2,6-dichlorophenolindophenol (DCFI), known as reactive Tillmans resulting in no significant levels. Aqueous extracts of castanhola pulp showed a higher concentration of phenolics, 244.33 ± 18.86 GAE.g-1 of fruit, and alcoholic extracts, 142.84 ± 2.09 GAE.g-1 of fruit. EC50 values of the aqueous extract showed a greater ability to scavenge free radicals than the alcoholic extracts. The fruit had a significant content of phenolic compounds and high antioxidant capacity.

scholarly journals Physico-chemical Characteristics of Selected Jackfruit (Artocarpus Heterophyllus Lam) Varieties

2019 ◽  
Vol 8 (4) ◽  
pp. 11 ◽  
Author(s):  
J. Balamaze ◽  
J. H. Muyonga ◽  
Y. B. Byaruhanga
Keyword(s):  
Chemical Properties ◽  
Soluble Solids ◽  
Average Weight ◽  
Chemical Characteristics ◽  
Maturation Period ◽  
Artocarpus Heterophyllus ◽  
Orange Yellow ◽  
Physico Chemical ◽  
Acid Ratio ◽  
The Mean

This study was aimed at establishing the variation in physico-chemical properties between and within different jackfruit varieties. Mature jackfruits from trees known to produce orange, yellow and white flakes were harvested and ripened at 28oC and 90% relative humidity. The weight, length and circumference of ripe fruits were measured. The fruits were cut into three equal sections: top, middle and bottom. Each section was separated into flakes, rind, abortive perigones, consolidated perigones, seeds and core. The percent weight of different fruit parts, and flake physico-chemical characteristics were determined. The average weight, length, circumference and maturation period for jackfruit varieties studied were 12 kg, 47 cm, 76 cm and 104 days, respectively. The mean proportions of flakes, rind, abortive perigones, consolidated perigones, seeds and core were 24.7, 20.0, 14.5 14.3, 13.1 and 11.3%, respectively. Ascorbic acid (AA), carotenoids, total soluble solids (TSS), TSS: acid ratio, color and texture varied significantly among jackfruit sections. Color did not vary among sections of yellow and white flaked varieties. Flake texture (hardness) was 12.1, 10.5 and 6.6 N/mm for the white, yellow and orange flaked varieties, respectively. Flake textural resilience was in the order: white > yellow > orange flakes. Principle component analysis showed white flakes correlated positively with flake resilience, hardness and color lightness. Orange flakes were associated with high carotenoids and TSS content. Yellow flakes exhibited intermediate properties between those of white and orange flakes. Jackfruit flake color and section can be used as flake quality predictor.

scholarly journals Selection of S3 progenies of super sweet corn based on agronomic performance of topcrosses

2021 ◽  
Vol 39 (4) ◽  
pp. 357-361
Author(s):  
Nathany R Chiquito ◽  
Marcos V Faria ◽  
Elida Auxiliadora P Paiva ◽  
Emanuel Gava ◽  
Welton L Zaluski
Keyword(s):  
Sweet Corn ◽  
Total Yield ◽  
Inbred Lines ◽  
Soluble Solids ◽  
Agronomic Performance ◽  
Soluble Solids Content ◽  
Commercial Yield ◽  
Solids Content ◽  
Topcross Hybrids ◽  
Selection Of

ABSTRACT The aim of this study was to select S3 progenies of super sweet corn based on agronomic performance, evaluated in topcrosses with the narrow genetic base tester Honey Sweeter (Seminis®). The experiment was carried out in Guarapuava-PR. We evaluated 22 topcross hybrids and three checks, in two sowing times, in randomized blocks design with three replications. Six traits were evaluated: total yield of husked ears, commercial yield of husked ears, grain yield, grain length, ear diameter and total soluble solids content. Considering the set of evaluated traits, the topcrosses with progenies D2-07, D3-28, D4-53 and D5-24 were superior to the others; therefore, these progenies should continue in the inbreeding process and be evaluated in crosses with elite inbred lines with potential to generate competitive super sweet corn single hybrids.

scholarly journals The Relationship between Color and Organic Compounds Content of in the Fruits of Sweet Cherries

2010 ◽  
Vol 67 (2) ◽  
Author(s):  
Piotr CHEŁPIŃSKI ◽  
Grzegorz MIKICIUK ◽  
Katarzyna KATARZYNA
Keyword(s):  
Organic Compounds ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Ripe Fruit ◽  
Experimental Station ◽  
University Of Technology ◽  
Sweet Cherries ◽  
Solids Content ◽  
The Individual ◽  
The Relationship

The three-year experiment was carried out in Experimental Station Orchad of the West Pomeranian University of Technology in Szczecin (Poland). The aim of the study was to evaluate the relationship between color and some organic compounds content in the fruits of sweet cherries ‘Burlat’ cultivar. Ripe fruit were divided into groups depending on the color. The following parameters of fruit were determined: mass of the individual fruit, soluble solids content and the concentration of DPPH in fruit. The analysis showed a relationship between color of fruit and mass of the individual fruit, soluble solids content and the concentration of DPPH. The darkest fruit characterized the highest concentration of soluble solids and the concentration of DPPH.

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