Influence of retained cane number and pruning time on grapevine yield components, fruit composition and vine phenology of Sauvignon Blanc vines

Trought, Michael C. T.; Bennett, J.S.; Boldingh, Helen

doi:10.1111/j.1755-0238.2011.00141.x

Cited by 20 publications

(20 citation statements)

References 8 publications

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“…This work showed that, contrary to some suggestions (Bennett et al 2005, Trought et al 2011, even in cool climates, viticulture photosynthesis during the short postharvest period provides a valuable contribution to the vine reserve pool. In its absence, sustainable high yields may be hard to maintain.…”

Section: Ncontrasting

confidence: 90%

“…Similar cumulative effects were reported for Semillon in the Riverina region in Australia, where defoliation reduced yield in the subsequent year by 21%, but the yield reduction reached 50% after two years of postharvest defoliation (Holzapfel et al 2006). The present study, however, contradicts findings of no differences in yield after pruning vines only 10 days postharvest (Trought et al 2011). Under cool-climate Marlborough conditions, vines tend to senesce soon after harvest (Bennett et al 2005, Petrie et al 2000, Trought et al 2011.…”

Section: Resultscontrasting

confidence: 56%

“…The present study, however, contradicts findings of no differences in yield after pruning vines only 10 days postharvest (Trought et al 2011). Under cool-climate Marlborough conditions, vines tend to senesce soon after harvest (Bennett et al 2005, Petrie et al 2000, Trought et al 2011.…”

Section: Resultscontrasting

confidence: 56%

“…Postharvest conditions could affect at least three stages of reproductive development: initiation, differentiation, and fruit set (Holzapfel et al 2006). However, studies on pruning time in Sauvignon blanc showed no influence of pruning only 10 days after harvest on yield or CHO reserves in the following season (Trought et al 2011). …”

mentioning

confidence: 99%

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Effect of Postharvest Defoliation on Carbon and Nitrogen Resources of High-Yielding Sauvignon blanc Grapevines

et al. 2016

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Abstract:We quantified the importance of postharvest carbohydrate assimilation and nitrogen availability to replenish vine reserves, over and above maintaining optimal growth, productivity, and fruit quality of high-yielding, vigorous Sauvignon blanc grapevines. To create different carbohydrate (CHO) and nitrogen (N) reserve concentrations, our factorial-design trial consisted of a postharvest defoliation treatment overlaid with a pruning treatment in which 48 or 72 nodes were retained on four-or six-cane vertical shoot positioned vines, respectively. In defoliation (Defol) vines, all leaves were removed immediately after fruit harvest, while foliated vines (Fol) went through normal senescence. From just after ectodormancy in 2008, samples of root and trunk tissue were taken throughout the years for CHO and N analyses and results were compared with annual yield data. Both defoliation and node number treatments reduced vine growth and yield. Additionally, differences in CHO and N of the permanent structure were found. Depleted winter reserves in trunk and root were replenished during the next growth cycle, suggesting that grapevine N and CHO partitioning favor survival of the permanent structure over increasing vine size and yield. However, after two consecutive years of defoliation, the cumulative effects of smaller, less fruitful canes from year one and reduced carbohydrates from the subsequent year reduced both yield and vegetative growth in the third growing season. Therefore, even the short-lived postharvest canopy in cool climates contributes to the vine CHO economy. Defoliation or excessive crop loads affected carbohydrate reserves in vines, but only after several consecutive years of low recharge; this manifested iteself in lower yields and poorer vegetative growth.

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Section: Ncontrasting

confidence: 90%

Section: Resultscontrasting

confidence: 56%

Section: Resultscontrasting

confidence: 56%

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confidence: 99%

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Effect of Postharvest Defoliation on Carbon and Nitrogen Resources of High-Yielding Sauvignon blanc Grapevines

et al. 2016

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“…Later winter pruning to delay budburst is used in cool winegrowing areas to reduce the risk of frost damage in spring (Coombe , Howell and Wolpert , Dami et al ). Some recent studies, however, have reported additional effects on yield and fruit composition of delayed winter pruning (Friend and Trought , Trought et al ). By delaying winter pruning, budburst of basal buds is inhibited, along with subsequent phenology and ripening.…”

Section: Introductionmentioning

confidence: 99%

Delaying winter pruning, after pre-pruning, alters budburst, leaf area, photosynthesis, yield and berry composition in Sangiovese (Vitis viniferaL.)

Silvestroni

Lanari

Lattanzi

et al. 2018

Australian Journal of Grape and Wine Research

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Background and Aims Earlier ripening of grapes due to global warming could be mitigated by delaying hand pruning on pre‐pruned canes. Hand pruning on pre‐pruned vines was delayed until after distal buds on canes had burst for Sangiovese (Vitis vinifera L.) vines, and the effect on phenology, canopy development, leaf gas exchange, yield and berry development and composition was assessed. Methods and Results Pre‐pruned vines, which were subsequently hand‐pruned during winter, were compared to vines where hand pruning was delayed (DP) until shoots from distal nodes of canes had burst and developed 3–4 (DP3) or 7–8 (DP7) expanded leaves. Delayed pruning delayed budburst by about 30 days in DP3 vines and 37–47 days in DP7 vines, which led to a slowing of canopy development and berry growth. Veraison was delayed by between 10 and 20 days. Yield was substantially reduced by delaying hand pruning but the concentration of phenolic substances and the acidity of berries was increased. Conclusions Delaying hand pruning on vines that had already been pre‐pruned delayed budburst, anthesis and veraison, reduced yield and significantly affected berry composition. The magnitude of these effects increased with the length of the pruning delay. Significance of the Study Delaying hand pruning on pre‐pruned grapevines may represent a promising technique to mitigate against some of the deleterious effects of global warming in vineyards.

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Juice Index: an integrated Sauvignon blanc grape and wine metabolomics database shows mainly seasonal differences

et al. 2019

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Influence of retained cane number and pruning time on grapevine yield components, fruit composition and vine phenology of Sauvignon Blanc vines

Cited by 20 publications

References 8 publications

Effect of Postharvest Defoliation on Carbon and Nitrogen Resources of High-Yielding Sauvignon blanc Grapevines

Effect of Postharvest Defoliation on Carbon and Nitrogen Resources of High-Yielding Sauvignon blanc Grapevines

Delaying winter pruning, after pre-pruning, alters budburst, leaf area, photosynthesis, yield and berry composition in Sangiovese (Vitis viniferaL.)

Juice Index: an integrated Sauvignon blanc grape and wine metabolomics database shows mainly seasonal differences

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