Abstract
Experiments were carried out at the Experimental Orchard of Assiut University, Faculty of Agriculture. The experiments aimed to overcome the looseness of berries as well as improving the yield and berry quality of Red Roomy grape cultivar by using Boron, Zinc and NAA. The study also aimed to reduce the cluster compactness by using GA3 and cluster thinning in order to improve the quality of Thompson Seedless grape cultivar. The treatments significantly increased the initial fruit set (IFS) and decreased the berry drop percentage. The cluster numbers not significantly affected by various treatments. However, the treatments increased the yield over the control. The control vines gave the lowest yield among all the treatments. The present study showed that there were no significant differences between treatments on the cluster width. On the other hand, treatments exhibited significant differences comparing with the control in respect of the cluster height. The treatments except of spraying with NAA had significant differences comparing with the control in respect of the cluster weight. However, the control vines gave the lowest cluster weight during the two studied seasons. On the contrary, the control gave the highest weight of 100 berries. On the other hand, although the control produced the highest juice weight of 100 berries but the differences were not significant during the two seasons of study. There were no significant differences between the treatments in respect of TSS% during the two studied seasons. The sugar contents took the same trend of TSS%. On the other hand, there were no significant differences between the treatments on the cluster number per vine of Thompson seedless grape cultivar. Yield weight significantly affected by GA3 application. The lowest yield obtained from the control. Data revealed that spraying the cluster with GA3 at 5 + 20 + 30 ppm gave the highest values of cluster width (cm) and height (cm). The clusters treated with GA3 at 5 + 20 + 30 ppm were the heaviest clusters among all the treatments and the differences between their values and the values of other treatments were significant during the two seasons of study. The weight of 100 berries and 100 berreis juice weight took the same trend of cluster weight. On the contrary of the previous results, the control and cluster thinning followed by GA3 at 5 ppm + thinning had the highest TSS% in the berry juice. Concerning the acidity percentage, the differences between the treatments mostly insignificant. GA3 application recorded also the least ratio of TSS/acid ratio, however, the other treatments significantly surpassed it in this respect. Cluster thinning gave the highest percentage of total sugars followed by GA3 at 5 ppm + thinning and then the control. This study concluded that the beneficial effects of spraying boron and zinc during flowering to increase the berry set and decrease berry drop of Red Roomy grape cultivar. On the other hand; Gibberellic acid (GA3) spraying increased berry size, cluster weight and expand the cluster length of Thompson Seedless grape cultivar that suffering from cluster compactness. Cluster thinning can be used for increasing berry and cluster weight and improving the quality.
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Claims 19
Claim · model-written summary
Boron, zinc and NAA treatments significantly increased initial fruit set in Red Roomy grape
Not reportedComparator
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“The treatments significantly increased the initial fruit set (IFS) and decreased the berry drop percentage”
e2“by using Boron, Zinc and NAA”
Claim · model-written summary
Boron, zinc and NAA treatments significantly decreased berry drop percentage in grape
Not reportedComparator
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“The treatments significantly increased the initial fruit set (IFS) and decreased the berry drop percentage”
e2“by using Boron, Zinc and NAA”
Claim · model-written summary
Cluster numbers were not significantly affected by the various treatments
- Taxon
- Grapet0
- Treatment
- various treatmentse1
- Outcome
- cluster numberse1
- Direction
- not significantly affectede1
Not reportedComparator
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“The cluster numbers not significantly affected by various treatments”
Claim · model-written summary
Treatments increased grape yield over the control
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“However, the treatments increased the yield over the control”
Claim · model-written summary
No significant differences between treatments on cluster width
Not reportedComparator
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“The present study showed that there were no significant differences between treatments on the cluster width”
Claim · model-written summary
Treatments showed significant differences in cluster height compared with the control
Not reportedDirection
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“treatments exhibited significant differences comparing with the control in respect of the cluster height”
Claim · model-written summary
Treatments other than NAA spraying had significant differences in cluster weight compared with the control
- Taxon
- Grapet0
- Treatment
- treatmentse1
- Outcome
- cluster weighte1
- Qualifier
- except of spraying with NAAe1
- Comparator
- controle1
Not reportedDirection
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“The treatments except of spraying with NAA had significant differences comparing with the control in respect of the cluster weight”
Claim · model-written summary
Control vines had the highest weight of 100 berries
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“On the contrary, the control gave the highest weight of 100 berries”
Claim · model-written summary
Control had the highest juice weight of 100 berries, but the differences were not significant
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“the control produced the highest juice weight of 100 berries but the differences were not significant during the two seasons of study”
Claim · model-written summary
No significant differences between treatments in TSS% of grape juice
Not reportedComparator
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“There were no significant differences between the treatments in respect of TSS% during the two studied seasons”
Claim · model-written summary
No significant differences between treatments in cluster number per vine of Thompson Seedless
- Taxon
- Grapet0
- Material
- Thompson seedlesse1
- Treatment
- the treatmentse1
- Outcome
- cluster number per vinee1
- Direction
- no significant differencese1
Not reportedComparator
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“there were no significant differences between the treatments on the cluster number per vine of Thompson seedless grape cultivar”
Claim · model-written summary
GA3 application significantly affected yield weight of Thompson Seedless grape, with the lowest yield in the control
Not reportedDirection
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“Yield weight significantly affected by GA3 application”
e2“The lowest yield obtained from the control”
Claim · model-written summary
Spraying clusters with GA3 at 5 + 20 + 30 ppm gave the highest cluster width and height
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“spraying the cluster with GA3 at 5 + 20 + 30 ppm gave the highest values of cluster width (cm) and height (cm)”
e2“the values of other treatments”
Claim · model-written summary
Control and cluster thinning followed by GA3 at 5 ppm + thinning had the highest TSS% in grape berry juice
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“the control and cluster thinning followed by GA3 at 5 ppm + thinning had the highest TSS% in the berry juice”
Claim · model-written summary
Acidity percentage differences between treatments were mostly insignificant
Not reportedComparator
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“Concerning the acidity percentage, the differences between the treatments mostly insignificant”
Claim · model-written summary
GA3 application gave the least TSS/acid ratio, below the other treatments
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“GA3 application recorded also the least ratio of TSS/acid ratio”
e2“the other treatments significantly surpassed it in this respect”
Claim · model-written summary
Cluster thinning gave the highest percentage of total sugars, above GA3 at 5 ppm + thinning and the control
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“Cluster thinning gave the highest percentage of total sugars followed by GA3 at 5 ppm + thinning and then the control”
Claim · model-written summary
GA3 at 5 + 20 + 30 ppm gave the heaviest clusters among all treatments, with significant weight differences from other treatments
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“The clusters treated with GA3 at 5 + 20 + 30 ppm were the heaviest clusters among all the treatments”
e2“in respect of the cluster weight”
Claim · model-written summary
Cluster thinning can be used to increase berry and cluster weight and improve quality
Verbatim
t0“Thompson Seedless Grape Cultivars”
e1“Cluster thinning can be used for increasing berry and cluster weight and improving the quality”
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