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Effect of bunch load on yield, quality and biochemical changes in Sharad Seedless grapes grafted on Dog Ridge rootstock.

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Title Effect of bunch load on yield, quality and biochemical changes in Sharad Seedless grapes grafted on Dog Ridge rootstock.
Not Available
 
Creator Somkuwar, R. G., J. Satisha, D. D. Bondge and Prerna Itroutwar
 
Subject Sharad Seedless, Bunch Load, Total Soluble Solids, Carbohydrate, Phenols
 
Description Not Available
A field experiment was conducted during the year 2007-08 to study the effect of bunch thinning
on bunch yield, berry quality and biochemical changes in Sharad Seedless table grapes. Crop
load level was adjusted to 30, 40, 50, 60, 70, 80 and 90 bunches per vine. Significant differences
were observed for all physicochemical and biochemical parameters except shoot diameter, inter
nodal length and berry length. Average bunch weight was increased (466.02 g) with the
reduction in number of bunches per vine (30 bunches). The same trend was also observed for
average berry weight. Highest berry diameter (20.20 mm) was recorded in 30-bunch treatment
followed by 19.90mm in 40-bunches per vine treatment whereas with the highest bunches per
vine treatment (90-bunches/vine) the berry diameter was reduced to 17.50mm. It was observed
that the reduction in bunch load per vine resulted into increase in total soluble solids in berries up to 18.500 Brix. Significant differences were recorded for reducing sugar, total phenols, proteins
and total carbohydrate. The carbohydrate concentration was increased with the increase in
number of bunches, however, the concentration was more in berries than in the rachis. Reducing
sugar and starch was reduced with the increase in bunch load. Negative correlation of yield per
vine with average bunch weight and berry weight was recorded. With the increase in number of
bunches per vine, the yield per vine was also increased. The source: sink alteration by bunch
removal had impact on yield, berry quality, sugar accumulation and berry composition.
Considering the berry diameter as main quality parameter and the concentration of carbohydrate content, reducing sugar, starch and in berries and total phenols in the rachis, retention of 50
bunches per vine for the purpose of local market seems to be an ideal one.
Not Available
 
Date 2020-08-01T15:47:54Z
2020-08-01T15:47:54Z
2013-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/38871
 
Language English
 
Relation Not Available;
 
Publisher Not Available