scholarly journals Cluster Modification Effects on the Performance of an Arkansas Table Grape Selection

HortScience ◽  
1998 ◽  
Vol 33 (4) ◽  
pp. 592b-592
Author(s):  
K.R. Woodburn ◽  
J.R. Clark
Keyword(s):  
Cluster Size ◽  
Mass Number ◽  
Table Grape ◽  
Breeding Program ◽  
Number Of Clusters ◽  
Cluster Thinning ◽  
Grape Breeding

Flower cluster thinning effects were investigated on A-2274, a large-fruited, seedless table grape selection from the Univ. of Arkansas Grape Breeding Program. The objective of the study was to evaluate flower cluster thinning as a method to enhance cluster size and fill. Treatments included thinning to one flower cluster per shoot, removing one-half of each cluster, and a control (no flowers removed). Each treatment consisted of three, single-vine replications, with each vine being pruned to 32 buds. Removal of entire flower clusters (to one per shoot) resulted in larger clusters and a trend toward higher cluster fill ratings. Berry mass, number of clusters per vine, and yield per vine were unaffected by flower cluster treatment. Berries per cluster were reduced by the partial flower cluster removal treatment. Flower cluster thinning to one cluster proved a beneficial practice in increasing cluster characteristics of this promising selection.

scholarly journals 095 `Jupiter' Seedless Table Grape

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 457F-457
Author(s):  
John R. Clark ◽  
James N. Moore
Keyword(s):  
Table Grape ◽  
Breeding Program ◽  
Soluble Solids ◽  
Grape Cultivar ◽  
Berry Weight ◽  
Table Grape Cultivar ◽  
Grape Cultivars ◽  
Grape Breeding ◽  
Made In

`Jupiter' is the fifth table grape cultivar released from the Univ. of Arkansas grape breeding program. `Jupiter' originated from a cross of Ark. 1258 × Ark. 1672 made in 1981. The original seedling vine was selected in 1984, and `Jupiter' was tested as Ark. 1985. `Jupiter' was tested at two locations in Arkansas (Fayetteville and Clarksville) and at West Lafayette, Ind. Fruit of `Jupiter' are reddish-blue, and berry weight averaged 5.5 g over 12 years of evaluation at Clarksville. Fruit are seedless, have a non-slipskin texture, ripen early mid-season, and averaged 19.8% soluble solids. Flavor is a mild muscat, a noteworthy character of this new cultivar. Clusters averaged 257 g over 12 years and are well-filled. Yields of `Jupiter' have been very good, exceeding 29 t/ha at Clarksville. Hardiness of `Jupiter' was greater than `Einset Seedless', `Himrod', or `Vanessa Seedless', but less than `Mars' or `Reliance' at West Lafayette. `Jupiter' is recommended for trial where other other eastern U.S. table grape cultivars are adapted.

scholarly journals Utjecaj prorjeđivanja grozdova na kakvoću mošta kultivara Chardonnay u kutjevačkom vinogorju

2021 ◽  
Vol 82 (4) ◽  
pp. 173-184
Author(s):  
Valentina Obradović ◽  
Brankica Svitlica ◽  
Maja Ergović Ravančić ◽  
Svjetlana Škrabal ◽  
Helena Marčetić ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Sugar Content ◽  
Amino Nitrogen ◽  
Ammonia Nitrogen ◽  
Ammonium Nitrogen ◽  
Total Acidity ◽  
Number Of Clusters ◽  
Cluster Mass ◽  
Significant Difference ◽  
Cluster Thinning

Kutjevo wine-hills are located on southern slopes of Papuk and Krndija mountains. The area is the most famous by production of Graševina grapes, but increasing share of other varieties cannot be ignored. Chardonnay is the most widespread variety all over the world, and in Požeško-slavonska county is represented by 5 % of total vineyards area. The aim of this research was to determine the influence of cluster thinning in Kutjevo wine-hills on maturation and must quality of Chardonnay grapes. Research was conducted in 2020 in Podgorje location (Kutjevo wine-hills). Experiment was established by a randomized block schedule in two treatments with three repetitions. Five vines in a row makes one repetition. The following parameters have been determined: sugar content and total acidity in grapes in period of one month before harvest, number of clusters per vine, cluster mass, mass of 100 berries, density, total acidity, volatile acidity, tartaric acid, malic acid, lactic acid, pH, reducing sugars, extract, glucose, fructose, glycerol, alfa amino nitrogen, ammonia nitrogen and potassium. Results have showed that cluster thinning had a significant influence on cluster mass and number of clusters per vine, but majority of chemical parameters were not significantly different between two treatments. Statistically significant difference was only in case of pH, lactic acid and ammonium nitrogen

scholarly journals Advances in table grape breeding in Japan

2016 ◽  
Vol 66 (1) ◽  
pp. 34-45 ◽  
Author(s):  
Masahiko Yamada ◽  
Akihiko Sato
Keyword(s):  
Table Grape ◽  
Grape Breeding

Postharvest evaluation of cold-hardy table-grape breeding lines

2019 ◽  
pp. 101-108
Author(s):  
L. Moreira ◽  
A. Underhill ◽  
M. Clark
Keyword(s):  
Table Grape ◽  
Breeding Lines ◽  
Cold Hardy ◽  
Grape Breeding

Clustering in some randomly occupied two- and three-dimensional lattices

2004 ◽  
Vol 82 (4) ◽  
pp. 323-329
Author(s):  
A Ulug ◽  
M Karakaplan ◽  
B Ulug
Keyword(s):  
Percolation Threshold ◽  
Coordination Number ◽  
Cluster Size ◽  
Three Dimensional ◽  
Occupation Probability ◽  
Average Cluster Size ◽  
Number Of Clusters ◽  
Size Dimension ◽  
Average Cluster

Clustering in some two- and three-dimensional lattices is investigated using an algorithm similar to that of Hoshen–Kopelman. The total number of clusters reveals a maximum at an occupation probability, pmax, where the average cluster size, 2.03 ± 0.07, is found to be independent of the size, dimension, coordination number, and the type of lattice. We discussed the fact that the clustering effectively begins at pmax. The percolation threshold, pc, and pmax are found to get closer to each other as the coordination number increases. PACS Nos.: 64.60.Ht, 64.60.Qb, 82.30.Nr

TABLE GRAPE BREEDING AT THE BEIJING INSTITUTE OF FORESTRY AND POMOLOGY

2015 ◽  
pp. 43-46
Author(s):  
H.Y. Xu ◽  
G.J. Zhang ◽  
A.L. Yan ◽  
L. Sun
Keyword(s):  
Table Grape ◽  
Beijing Institute ◽  
Grape Breeding

scholarly journals Berry Texture of Table, Wine, and Dual-purpose Grape Cultivars Quantified

HortScience ◽  
2003 ◽  
Vol 38 (4) ◽  
pp. 578-581 ◽  
Author(s):  
Akihiko Sato ◽  
Masahiko Yamada
Keyword(s):  
Small Deformation ◽  
Textural Properties ◽  
Grape Berry ◽  
Table Grape ◽  
Dual Purpose ◽  
Mean Values ◽  
Vitis Labruscana ◽  
Large Maximum ◽  
The Mean ◽  
Grape Breeding

The textural properties of grape berry flesh were evaluated with a puncture test using a total of 87 cultivars, consisting of 62 vinifera cultivars (Vitis vinifera L.) and 25 labruscana cultivars (Vitis labruscana Bailey) in order to search cultivars with crisp flesh texture for table grape breeding. Crisp texture is the most desirable texture for tableuse, and was determined as easy breakdown on mastication and firm flesh, which was measured as small deformation at the first major peak (DFP) and large maximum force (MF), respectively, in force-deformation curve of the test. For the vinifera cultivars, the mean values of DFP and MF were significantly smaller and larger in table-use cultivars than wine-use and dual-purpose cultivars, respectively. The result indicated that the vinifera wine-use and the dual-purpose cultivars had soft and non-crisp flesh. Based on the puncture tests, the cultivars with a crisp texture (2.5 mm ≥ for DFP and 0.9 N ≤ for MF) were limited to 11 vinifera table-use cultivars such as `Baladi', `Cardinal', and `Muscat of Alexandria'; and one vinifera dual-purpose cultivar (`Terbash'). The DFP was generally high in labruscana cultivars, which include table-use and dual-purpose cultivars, resulting in lacking cultivars with crisp texture among labruscana cultivars. These results indicate that the cultivars with a crisp texture were restricted to a small source within vinifera cultivars.

Sign in / Sign up

Export Citation Format

Share Document