Trellis effects on yield and fruit quality of five table grape varieties in the Murray Valley

1991 ◽  
Vol 31 (4) ◽  
pp. 585
Author(s):  
BK Taylor ◽  
KC Leamon
Keyword(s):  
Fruit Quality ◽  
Field Trial ◽  
Cost Effective ◽  
Table Grape ◽  
Table Grapes ◽  
Berry Size ◽  
The Mean ◽  
Grape Varieties

A field trial was established in the Mildura district, to compare the effects of trellis type (single T, double T, Y and sloping T) on the yield and fruit quality of 5 table grape varieties (Cardinal, Waltham Cross, Italia, Ruby Seedless and Emperor). Over a 3-year period (1978-80), berry yield proved insensitive to trellis type for most varieties and also as the mean of all varieties in 2 years out of 3; however, the 3 larger trellises led to significantly (P<0.05) increased berry Brix levels, improved red colour levels on Cardinal, Ruby Seedless and Emperor grapes, and higher mean berry weights for Cardinal, Waltham Cross and Italia varieties, compared with grapes grown on the single T trellis. Since differences in Brix, red colour levels and berry size were, generally, not significantly different between the 3 large trellises tested, and the sloping T trellis is simpler and easier to erect, it is concluded that the sloping T trellis is a suitable, cost-effective trellis to use for the production of table grapes in the Murray Valley.

scholarly journals Phenotypic evaluation of segregant population derived by crossing table grape varieties

2019 ◽  
Vol 15 ◽  
pp. 01021
Author(s):  
L.R. Forleo ◽  
A. L’Abbate ◽  
C. Bergamini ◽  
M. Velenosi ◽  
A.D. Marsico ◽  
...  
Keyword(s):  
Embryo Rescue ◽  
Table Grape ◽  
Breeding Program ◽  
Table Grapes ◽  
Good Productivity ◽  
Grape Varieties ◽  
Near Future ◽  
Reduced Water ◽  
Resistance To Diseases

In the CREA-Viticoltura ed Enologia, Lab of Turi, during the last ten years, we started a breeding program for table grapes to obtain new seedless varieties, by using conventional breeding by crossings, and embryo rescue techniques. Other than seedlessness, additional targets for this breeding program are: the possibility of extending the harvesting period, the attitude to cold storage, transport and shelf-life, resistance to diseases both on the plant and in post-harvest conditions, the good productivity, the quality of the grapes, the easy cultivation management of the vineyard (reduced water, nutritional requirements, etc ...). More than 10.000 new genotypes have been obtained through the use of over 20 table grape varieties and more than 18 different crossing combinations. The following characteristics have been observed on these individuals for more than three years: berry color, length and weight cluster, average berry weight, sugars, pH, acidity, class of seedlessness, floral morphology, resistance to diseases. The results of these activities revealed that some combinations have better performance among all. In the near future, this activity will allow to focus on parental genotypes able to provide individuals with the best desired traits.

scholarly journals Influence of foliar applications of humic acids on yield and fruit quality of table grape cv. Italia

OENO One ◽  
2008 ◽  
Vol 42 (2) ◽  
pp. 79 ◽  
Author(s):  
Giuseppe Ferrara ◽  
Gennaro Brunetti
Keyword(s):  
Chlorophyll Content ◽  
Humic Acids ◽  
Fruit Quality ◽  
Foliar Application ◽  
Soluble Sugars ◽  
Table Grape ◽  
Positive Effects ◽  
Titrable Acidity ◽  
Berry Size

<p style="text-align: justify;"><strong>Aims</strong>: The responses in growth, yield and quality components of a Vitis vinifera cultivar (Italia) to the foliar applications of two humic acids extracted from a soil and a compost have been studied.</p><p style="text-align: justify;"><strong>Methods and results</strong>: The foliar applications of the two humic acids were performed in two years and six different dates of the season. Both humic acids were tested at two different concentrations, 5 and 20 mg/L. Throughout the trial, different analyses were performed (SPAD, chlorophyll content, titrable acidity, soluble sugars, pH, yield). Grapevines treated with the two humic acids exhibited both significant increases in total chlorophyll content and reductions of the chlorophyll a/b ratio. Application of humic acids significantly decreased titrable acidity and increased °Brix/acidity ratio. Generally, the treatments with humic acids significantly increased berry size, and as a consequence the yield.</p><p style="text-align: justify;"><strong>Conclusions</strong>: Humic acids exerted some positive effects (chlorophyll content, acidity, berry size) in Italia table grape. Better results were obtained when the compost humic acid was sprayed.</p><p style="text-align: justify;"><strong>Significance and impact of study</strong>: This study gives new information about the positive effects of foliar application of humic acids, active components of soil and compost organic matter, on yield and fruit quality of table grape. In organic viticulture humic acids may find a valid and appropriate application for a technical and economical use.</p>

scholarly journals The Quality of Three Table Grape Varieties Fumigated with Methyl Bromide at Doses Recommended for the Control of Mealybugs

2000 ◽  
Vol 10 (1) ◽  
pp. 159-162 ◽  
Author(s):  
J.L. Smilanick ◽  
F. Mlikota ◽  
P.L. Hartsell ◽  
J.S. Muhareb ◽  
N. Denis-Arrue
Keyword(s):  
Methyl Bromide ◽  
Quality Parameters ◽  
Table Grape ◽  
Treatment Schedule ◽  
Table Grapes ◽  
Grape Quality ◽  
Inspection Service ◽  
Internal Browning ◽  
Grape Varieties

`Ruby Seedless', `Red Globe', and `Prima Red' table grapes were fumigated with the treatment schedule of the USDA-Animal Plant Health Inspection Service recommended for the control of mealybugs. Methyl bromide was applied at 64 g·m-3 (4.0 lb/1000 ft3) for 2 h at 16.1 to 18.3 °C (61 to 65 °F). The grapes were in commercial packages typical for each cultivar. After fumigation and 30 min of aeration, the grapes were stored 2 to 4 weeks at 5 °C (41 °F) and their quality assessed by evaluation of cluster rachis condition, shatter, berry cracking, decay, berry color, internal browning, bleaching injury, and firmness. None of the table grape quality parameters was significantly influenced by methyl bromide fumigation.

Water use efficiency and fruit quality of table grape under alternate partial root-zone drip irrigation

2008 ◽  
Vol 95 (6) ◽  
pp. 659-668 ◽  
Author(s):  
Taisheng Du ◽  
Shaozhong Kang ◽  
Jianhua Zhang ◽  
Fusheng Li ◽  
Boyuan Yan
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Fruit Quality ◽  
Drip Irrigation ◽  
Root Zone ◽  
Table Grape ◽  
Use Efficiency

scholarly journals The effect of aerosol treatment with calcium-based preparation on quality of table grape cultivar during storage

2021 ◽  
Vol 232 ◽  
pp. 03023
Author(s):  
Sofia Cherviak ◽  
Svetlana Levchenko ◽  
Vladimir Boyko ◽  
Dmitriy Belash
Keyword(s):  
Weight Loss ◽  
Table Grape ◽  
Oxidative Enzymes ◽  
Organoleptic Properties ◽  
Table Grapes ◽  
Long Term Storage ◽  
Organoleptic Characteristics ◽  
Term Storage

The main problems of grape storage are berry dehydration and rot. One of the solutions to reduce rot and preserve the quality of grapes during storage is the use of aerosol treatment with calcium content before storing. The aim of the study was to evaluate the effect of physiologically active substances based on calcium in various concentrations on the quality and organoleptic characteristics of table grape cvs. ‘Italia’ during long-term storage. The effectiveness of the studied systems of treatment was evaluated according to the content of sugars and titratable acids, the activity of the redox enzymes of polyphenol oxidase and peroxidase, weight loss of bunch and organoleptic properties. The greatest effectiveness established by using preparation of Master Green Ca, Brentax KCa, and Brentax Ca (in concentration 150g / 20l). Experimental treatments significantly decreased the weight loss of bunch (less than 4%), and preserved organoleptic properties of berry at a high level (8.2-8.9 points). Decrease in the activity of oxidative enzymes had a positive effect on the quality of table grapes and contributed to its better preservation. The data obtained make it possible to rationalize the system of long-term storage of grapes by using of aerosol treatment with calcium-based preparation.

EFFECTS OF CPPU AND GA3 ON FRUIT QUALITY OF SULTANINA TABLE GRAPE

1995 ◽  
pp. 149-158 ◽  
Author(s):  
J. Retamales ◽  
F. Bangerth ◽  
T. Cooper ◽  
R. Callejas
Keyword(s):  
Fruit Quality ◽  
Table Grape

scholarly journals Does arthroscopic subacromial decompression improve quality of life

2015 ◽  
Vol 97 (3) ◽  
pp. 221-223 ◽  
Author(s):  
U Butt ◽  
A Whiteman ◽  
J Wilson ◽  
E Paul ◽  
B Roy
Keyword(s):  
Quality Of Life ◽  
Cost Effective ◽  
Decompression Surgery ◽  
Subacromial Decompression ◽  
Oxford Shoulder Score ◽  
Effective Manner ◽  
The Mean ◽  
Arthroscopic Subacromial Decompression ◽  
Shoulder Score

Introduction There has been a significant rise in the volume of subacromial decompression surgery performed in the UK. This study aimed to determine whether arthroscopic subacromial decompression improves health related quality of life in a cost effective manner. Methods Patients undergoing arthroscopic subacromial decompression surgery for impingement were enrolled between 2012 and 2014. The Oxford shoulder score and the EQ-5D™ instruments were completed prior to and following surgery. A cost–utility analysis was performed. Results Eighty-three patients were eligible for the study with a mean follow-up duration of 15 months (range: 4–27 months). The mean Oxford shoulder score improved by 13 points (95% confidence interval [CI]: 11–15 points). The mean health utility gain extrapolated from the EQ-5D™ questionnaire improved by 0.23 (95% CI: 0.16–0.30), translating to a minimum cost per QALY of £5,683. Conclusions Subacromial decompression leads to significant improvement in function and quality of life in a cost effective manner. This provides justification for its ongoing practice by appropriately trained shoulder surgeons in correctly selected patients.

scholarly journals Fertility and Other Characteristics of F1 and Backcross1 Progeny from an Intersectional Blueberry Cross [(highbush cultivar × Vaccinium arboreum) × highbush cultivar]

HortScience ◽  
2013 ◽  
Vol 48 (2) ◽  
pp. 146-149 ◽  
Author(s):  
Paul M. Lyrene
Keyword(s):  
Fruit Quality ◽  
Morphological Traits ◽  
High Variability ◽  
Highbush Blueberry ◽  
High Fertility ◽  
Berry Size ◽  
Large Numbers ◽  
Berry Quality ◽  
Plant Characteristics

Fertility and morphological traits were studied in the F1 and BC1 generations of intersectional crosses between tetraploid highbush blueberry cultivars (Vaccinium section Cyanococcus) and colchicine-induced tetraploid V. arboreum (Vaccinium section Batodendron). The goal of the introgression project was to combine desirable plant characteristics from V. arboreum with the large fruit and high fruit quality of highbush cultivars. Highbush × V. arboreum crosses were hard to make, but large numbers of BC1 seedlings were easily obtained using the most fertile F1 plants as parents in backcrosses to highbush. Anther awns, a character from V. arboreum, were present in all F1 seedlings, but fruit sclerids, another V. arboreum trait, were absent in most seedlings. Berry size in the BC1 generation was twice as large as in the F1 generation and was twice as large in the F1 as in V. arboreum. The BC1 generation was extremely variable in vigor and berry quality. Although berries of most BC1 plants were smaller, darker, and less desirable in texture and flavor than highbush berries, the high fertility of BC1 plants and the high variability among plants indicate that useful clones could be selected or developed by further breeding.

scholarly journals Efficiency of foliar fertilization in table grapes cultivation under irrigation

2021 ◽  
Author(s):  
Ye. V. Polukhina ◽  
◽  
M. V. Vlasenko ◽  
Keyword(s):  
Economic Efficiency ◽  
Cost Effective ◽  
Biological Indicators ◽  
Foliar Nutrition ◽  
Table Grapes ◽  
Combined Application ◽  
Dry Conditions ◽  
The Cost ◽  
Grape Varieties ◽  
The Impact

Purpose: to assess the impact of foliar nutrition with soluble fertilizers Plantafol and Boroplus on economic and biological indicators and the efficiency of cultivation of table grape varieties in dry conditions under irrigation. The relevance of research is due to the problem of ensuring food security at the national and regional levels. Materials and methods. The subject of research was the grape varieties Codryanka (early), Rizamat (medium) and Moskovsky (late). The studies were carried out in the period 2015–2017 in Astrakhan region. Irrigation was carried out depending on the phase of development at a rate of 500–2250 cubic meters per hectare. The timing of the fertilization treatment was tied to the development phases, and the rates were in accordance with the manufacturer's recommendations. The methodological basis was M. A. Lazarevsky and B. A. Dospekhov methods. The calculation of economic efficiency was carried out on the basis of actual costs associated with technological operations, fertilization, irrigation, protective measures, collection of main and additional products. Results. The most cost-effective is the combined use of soluble foliar fertilizers Plantafol and Boroplus on grape plantations. The Rizamat variety was distinguished. Conclusions. The economic efficiency of the soluble foliar fertilizers application on grape plantations on average for 2015–2017 is the most significant in all three varieties Kodryanka, Rizamat and Moskovsky during combined application of fertilizers, especially in the Rizamat variety, when growing and receiving grape products of which the cost price decreased by 24.6 %, reaching a minimum value of 14947.4 rubles/t, profitability increased to 234.5 %, and the payback up to 3.35 rubles/rubles.

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