Abstract
Role of calcium and boron are well known for the development and maintenance of structural properties. The present study was conducted during 2018 in a vineyard of farmer’s field at Matthipalyam, Coimbatore district, Tamil Nadu. Grape cultivar was tested with ten foliar treatments at different doses of calcium and boron, which was given twice at 45 and 55 days after pruning along with the existing recommendation of 0.1% boric acid + 0.2% zinc sulphate + 1% urea. And other treatments were T2-0.5% calcium nitrate; T3-1% calcium nitrate; T4-0.1% boric acid; T5-0.2% boric acid; T6-0.5% calcium nitrate + 0.1% boric acid; T7-1% calcium nitrate + 0.1% boric acid; T8-0.5% calcium nitrate + 0.2% boric acid; T9-1% calcium nitrate + 0.2% boric acid and T10-water spray. The effect of calcium and boron on yield and quality of grapes was investigated with three replicates in a randomised block design. Calcium and boron treatments positively influenced the number of bunches/vines (22 to 31 nos), yield/vine (5.32 to 6.13 kg/vine) and yield per hectare (21.7 t ha-1). Besides, they also showed positive influence on TSS (17.9 to 15.9 Brix0), juice pH (3.92 to 3.75), titrable acidity (0.91 to 1.19%), total solids (1.32 to 1.07%), berry firmness (11.9 to 7.95 N) and total sugars (15.6 to 11.2%). Foliar spray of 0.5% calcium nitrate and 0.2% boric acid twice at 45 and 55 days after pruning increased the yield by 11.1% over control besides increasing the quality parameters of grape variety Paneer.
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Claims 5
Claim · model-written summary
Calcium and boron treatments positively influenced bunches per vine, ranging from 22 to 31.
- Taxon
- grapet0
- Treatment
- Calcium and boron treatmentse0
- Outcome
- number of bunches/vinese0
- Direction
- positively influencede0
- Value
- 22 to 31 nose0
Not reportedComparator
Verbatim
e0“Calcium and boron treatments positively influenced the number of bunches/vines (22 to 31 nos)”
t0“grape”
Claim · model-written summary
Calcium and boron treatments positively influenced yield per vine, ranging from 5.32 to 6.13 kg/vine.
Not reportedComparatorDirection
Verbatim
e0“yield/vine (5.32 to 6.13 kg/vine)”
t0“grape”
t1“calcium and boron”
Claim · model-written summary
Calcium and boron treatments positively influenced yield per hectare, reported as 21.7 t ha-1.
Not reportedTreatmentComparatorDirection
Verbatim
e0“yield per hectare (21.7 t ha-1)”
t0“grape”
Claim · model-written summary
Treatments positively influenced grape TSS, juice pH and titrable acidity.
Not reportedComparator
Verbatim
e0“they also showed positive influence on TSS (17.9 to 15.9 Brix0), juice pH (3.92 to 3.75), titrable acidity (0.91 to 1.19%)”
t0“grape”
Claim · model-written summary
The foliar spray of 0.5% calcium nitrate and 0.2% boric acid increased yield by 11.1% over control.
Verbatim
e0“Foliar spray of 0.5% calcium nitrate and 0.2% boric acid twice at 45 and 55 days after pruning increased the yield by 11.1% over control besides increasing the quality parameters of grape variety Paneer”
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