Abstract
A multi-year orchard experiment was established to measure the performance of Rootpac ® -R, Rootpac ® -20, Rootpac ® -40, and Rootpac ® -70 rootstocks using ‘Redhaven’ peach (Prunus persica var. persica) as the scion, compared with the ‘Bailey’ peach seedling rootstock, the current industry standard. Tree survival after five years was 79% on Rootpac-40, whereas the remaining rootstocks showed no tree mortality. Tree vigour and canopy height and width were influenced by rootstock genotype beginning the year of planting in 2016. For the first five years of production, Rootpac-70 consistently produced the largest trees based on truck cross-sectional area (TCSA) and by year five, all rootstocks produced trees with similar TCSAs, except for Rootpac-70, which was 38% larger than Bailey. By year five, cumulative yields were greatest on Rootpac-70, which were 10% higher than Bailey; cumulative yields of Rootpac-R, Rootpac-20, and Rootpac-30 were 98%, 89%, and 84% that of Bailey, respectively. Cumulative yield efficiency was significantly influenced by rootstock although the magnitude of the differences was small and likely of insignificant commercial importance. Rootpac-40 consistently produced the largest fruit. These results are only reflective of the orchard establishment years and additional data are required before peach producers can make fully informed decisions concerning the rootstocks evaluated in this study for their orchard systems. However, at this juncture, all the Rootpac rootstocks evaluated in this study are likely to impart excessive vigour to be used in a higher density system and offer little advantage over Bailey.
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Claims 13
Claim · model-written summary
Tree survival after five years was 79% on Rootpac-40 rootstock.
- Taxon
- Prunus persica
Prunus persicae0 - Material
- Rootpac-40e1
- Outcome
- Tree survivale1
- Value
- 79%e1
- Qualifier
- after five yearse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e1“Tree survival after five years was 79% on Rootpac-40”
Claim · model-written summary
The remaining rootstocks showed no tree mortality.
- Taxon
- Prunus persicaPrunus persicae0
- Material
- remaining rootstockse2
- Outcome
- tree mortalitye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e2“whereas the remaining rootstocks showed no tree mortality”
Claim · model-written summary
Rootstock genotype influenced tree vigour and canopy height and width from the year of planting in 2016.
- Taxon
- Prunus persicaPrunus persicae0
- Treatment
- rootstock genotypee3
- Outcome
- Tree vigour and canopy height and widthe3
- Qualifier
- beginning the year of planting in 2016e3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e3“Tree vigour and canopy height and width were influenced by rootstock genotype beginning the year of planting in 2016”
Claim · model-written summary
Rootpac-70 consistently produced the largest trees by truck cross-sectional area in the first five years of production.
- Taxon
- Prunus persicaPrunus persicae0
- Material
- Rootpac-70e4
- Outcome
- truck cross-sectional area (TCSA)e4
- Direction
- largeste4
- Qualifier
- For the first five years of productione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e4“For the first five years of production, Rootpac-70 consistently produced the largest trees based on truck cross-sectional area (TCSA)”
Claim · model-written summary
By year five, Rootpac-70 trees were 38% larger in truck cross-sectional area than Bailey.
- Taxon
- Prunus persicaPrunus persicae0
- Treatment
- Rootpac-70e6
- Outcome
- TCSAse5
- Direction
- largere6
- Value
- 38%e6
- Comparator
- Baileye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e5“by year five, all rootstocks produced trees with similar TCSAs, except for Rootpac-70”
e6“Rootpac-70, which was 38% larger than Bailey”
Claim · model-written summary
By year five, all rootstocks except Rootpac-70 produced trees with similar truck cross-sectional area.
- Taxon
- Prunus persicaPrunus persicae0
- Material
- all rootstockse5
- Outcome
- TCSAse5
- Direction
- similare5
- Qualifier
- except for Rootpac-70e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e5“by year five, all rootstocks produced trees with similar TCSAs, except for Rootpac-70”
Claim · model-written summary
Cumulative yield on Rootpac-70 was 10% higher than Bailey by year five.
- Taxon
- Prunus persicaPrunus persicae0
- Treatment
- Rootpac-70e7
- Outcome
- cumulative yieldse7
- Direction
- highere7
- Value
- 10%e7
- Comparator
- Baileye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e7“By year five, cumulative yields were greatest on Rootpac-70, which were 10% higher than Bailey”
Claim · model-written summary
Cumulative yield of Rootpac-R was 98% that of Bailey.
- Taxon
- Prunus persicaPrunus persicae0
- Treatment
- Rootpac-Re1
- Outcome
- cumulative yieldse1
- Direction
- lowerinferrede1
- Value
- 98%e1
- Comparator
- Baileye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e1“cumulative yields of Rootpac-R, Rootpac-20, and Rootpac-30 were 98%, 89%, and 84% that of Bailey, respectively”
Claim · model-written summary
Cumulative yield of Rootpac-20 was 89% that of Bailey.
- Taxon
- Prunus persicaPrunus persicae0
- Treatment
- Rootpac-20e1
- Outcome
- cumulative yieldse1
- Direction
- lowerinferrede1
- Value
- 89%e1
- Comparator
- Baileye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e1“cumulative yields of Rootpac-R, Rootpac-20, and Rootpac-30 were 98%, 89%, and 84% that of Bailey, respectively”
Claim · model-written summary
Cumulative yield of Rootpac-30 was 84% that of Bailey.
- Taxon
- Prunus persicaPrunus persicae0
- Treatment
- Rootpac-30e1
- Outcome
- cumulative yieldse1
- Direction
- lowerinferrede1
- Value
- 84%e1
- Comparator
- Baileye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e1“cumulative yields of Rootpac-R, Rootpac-20, and Rootpac-30 were 98%, 89%, and 84% that of Bailey, respectively”
Claim · model-written summary
Cumulative yield efficiency was significantly influenced by rootstock, with small differences.
- Taxon
- Prunus persicaPrunus persicae0
- Treatment
- rootstocke1
- Outcome
- Cumulative yield efficiencye1
- Qualifier
- the magnitude of the differences was smalle1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e1“Cumulative yield efficiency was significantly influenced by rootstock although the magnitude of the differences was small”
Claim · model-written summary
Rootpac-40 consistently produced the largest fruit.
- Taxon
- Prunus persicaPrunus persicae0
- Material
- Rootpac-40e1
- Outcome
- fruite1
- Direction
- largeste1
- Qualifier
- consistentlye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e1“Rootpac-40 consistently produced the largest fruit”
Claim · model-written summary
The authors conclude that the Rootpac rootstocks are likely to impart excessive vigour in a higher density system and offer little advantage over Bailey.
- Taxon
- Prunus persicaPrunus persicae0
- Outcome
- offer little advantage over Baileye1
- Qualifier
- excessive vigoure1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prunus persica var. persica”
e1“all the Rootpac rootstocks evaluated in this study are likely to impart excessive vigour to be used in a higher density system and offer little advantage over Bailey”