Early Canopy Management Practices Differentially Modulate Fruit Set, Fruit Yield, and Berry Composition at Harvest Depending on the Grapevine Cultivar
Abstract
:1. Introduction
2. Results
2.1. Vine Vegetative Growth
2.2. Leaf Net Photosynthetic Rate
2.3. Inflorescence Fertility, Fruit Set, and Bunch Architecture at Harvest
2.4. Bud Potential Fertility, Fruit Yield Components, and Berry Composition at Harvest
3. Discussion
4. Materials and Methods
4.1. Experimental Site and Plant Material
4.2. Experimental Design and Treatments
4.3. Vegetative Growth Measurements
4.4. Leaf Photosynthetic Rate Measurements
4.5. Vine Fertility
4.6. Fruit Yield Components, Fruit Set, and Berry Composition at Harvest
4.7. Meteorological Data
4.8. Statistical Analysis
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Source of Variation | Main Shoot Length (cm) | Number of Main Leaves on the Shoot | Internode Length of the Main Shoot (cm) | Area of the Main Leaves (cm2/leaf) | Number of Lateral Shoots on the Main Shoot | Lateral Shoot Length (cm/lateral) | Number of Leaves per Lateral |
---|---|---|---|---|---|---|---|
Cultivar (CV) | |||||||
‘Aglianico’ | 100.0 ± 2.2 | 16.4 ± 0.2 | 6.1 ± 0.1 | 110.8 ± 2.9 | 7.4 ± 0.3 | 3.8 ± 0.1 | 2.2 ± 0.1 |
‘Casavecchia’ | 131.2 ± 3.2 | 16.0 ± 0.2 | 8.2 ± 0.2 | 97.0 ± 2.0 | 8.9 ± 0.3 | 5.5 ± 0.1 | 2.5 ± 0.1 |
Significance | *** | n.s. | *** | *** | *** | *** | * |
Source of Variation | No Flowers/INFLORESCENCE | Tot Pn per Shoot (Main + Laterals) after trt (μmol/s/shoot) | No Berries/Bunch | Fruit Set (%) | Total Rachis Length (cm) | Berry Fresh Weight (g/berry) | BCI-1 (No berries/cm) | BCI-2 (g berries/cm) |
---|---|---|---|---|---|---|---|---|
Cultivar (CV) | ||||||||
‘Aglianico’ | 239 ± 9 b | 2.80 ± 0.17 b | 114 ± 5 a | 47.0 ± 0.9 a | 36.9 ± 1.6 b | 1.86 ± 0.04 a | 3.26 ± 0.12 a | 5.50 ± 0.18 a |
‘Casavecchia’ | 309 ± 15 a | 3.61 ± 0.2 a | 112 ± 6 a | 36.1 ± 0.8 b | 84.1 ± 3.8 a | 1.90 ± 0.03 a | 1.34 ± 0.04 b | 2.48 ± 0.09 b |
Significance | *** | *** | n.s. | *** | *** | n.s. | *** | *** |
Canopy management (CM) | ||||||||
Control | 274 ± 21 a | 4.8 ± 0.29 a | 119 ± 10 ab | 42.9 ± 1.6 b | 56.5 ± 4.9 a | 1.96 ± 0.07 a | 2.35 ± 0.12 b | 4.17 ± 0.29 ab |
Basal Defoliation | 270 ± 19 a | 2.64 ± 0.2 b | 103 ± 7 b | 38.7 ± 0.9 c | 59.4 ± 6.3 a | 1.96 ± 0.07 a | 2.28 ± 0.19 b | 4.31 ± 0.35 ab |
Apical Defoliation | 259 ± 13 a | 2.62 ± 0.18 b | 96 ± 4 b | 37.6 ± 1.2 c | 55.3 ± 4.2 a | 1.89 ± 0.05 ab | 2.10 ± 0.14 b | 3.65 ± 0.24 b |
Shoot Trimming | 272 ± 14 a | 2.74 ± 0.24 b | 135 ± 8 a | 49.8 ± 1.5 a | 57.9 ± 4.8 a | 1.72 ± 0.03 b | 2.99 ± 0.25 a | 4.68 ± 0.32 a |
Significance | n.s. | *** | *** | *** | n.s. | ** | *** | * |
CV × CM | ||||||||
Significance | n.s. | n.s. | n.s. | ** | n.s. | n.s. | n.s. | n.s. |
Source of Variation | Bud Potential Fertility Index (No bunches/bud) | Fruit Yield (kg/vine) | No Bunches per Vine | Bunch Fresh Weight (g/bunch) | Total Soluble Solids (°Brix) | pH | Titratable Acidity (% Tartaric Acid) |
---|---|---|---|---|---|---|---|
Cultivar (CV) | |||||||
‘Aglianico’ | 1.64 ± 0.06 a | 6.47 ± 0.40 a | 33 ± 1 a | 194.7 ± 9.3 a | 21.3 ± 0.1 b | 3.23 ± 0.01 b | 0.77 ± 0.01 a |
‘Casavecchia’ | 1.21 ± 0.05 b | 3.83 ± 0.25 b | 19 ± 1 b | 205.4 ± 9.3 a | 22.6 ± 0.1 a | 3.48 ± 0.01 a | 0.45 ± 0.01 b |
Significance | *** | *** | *** | n.s. | *** | *** | *** |
Canopy management (CM) | |||||||
Control | 1.36 ± 0.09 a | 5.35 ± 0.69 a | 24 ± 3 a | 222.7 ± 18.2 a | 21.8 ± 0.2 b | 3.37 ± 0.03 ab | 0.62 ± 0.03 ab |
Basal Defoliation | 1.47 ± 0.10 a | 5.21 ± 0.55 a | 26 ± 2 a | 197.8 ± 11.2 a | 21.8 ± 0.2 b | 3.33 ± 0.02 b | 0.60 ± 0.03 ab |
Apical Defoliation | 1.42 ± 0.10 a | 4.69 ± 0.40 a | 27 ± 2 a | 179.3 ± 9.7 a | 22.4 ± 0.2 a | 3.40 ± 0.03 a | 0.57 ± 0.02 b |
Shoot Trimming | 1.44 ± 0.09 a | 5.35 ± 0.61 a | 26 ± 2 a | 200.3 ± 10.4 a | 21.7 ± 0.2 b | 3.32 ± 0.02 b | 0.64 ± 0.03 a |
Significance | n.s. | n.s. | n.s. | n.s. | ** | ** | * |
CV × CM | |||||||
Significance | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. |
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Mataffo, A.; Scognamiglio, P.; Molinaro, C.; Corrado, G.; Basile, B. Early Canopy Management Practices Differentially Modulate Fruit Set, Fruit Yield, and Berry Composition at Harvest Depending on the Grapevine Cultivar. Plants 2023, 12, 733. https://doi.org/10.3390/plants12040733
Mataffo A, Scognamiglio P, Molinaro C, Corrado G, Basile B. Early Canopy Management Practices Differentially Modulate Fruit Set, Fruit Yield, and Berry Composition at Harvest Depending on the Grapevine Cultivar. Plants. 2023; 12(4):733. https://doi.org/10.3390/plants12040733
Chicago/Turabian StyleMataffo, Alessandro, Pasquale Scognamiglio, Carlo Molinaro, Giandomenico Corrado, and Boris Basile. 2023. "Early Canopy Management Practices Differentially Modulate Fruit Set, Fruit Yield, and Berry Composition at Harvest Depending on the Grapevine Cultivar" Plants 12, no. 4: 733. https://doi.org/10.3390/plants12040733