Abstract
Avocado ( Persea americana Mill. cv. Hass) trees were pruned over 3 years at either 4 or 6 m in height by removing or heading back selected limbs. Yields were compared with those from control trees with no pruning in the upper canopy. All trees had similar crop loads before pruning. Trees were at 9 × 10-m spacing and were 8 years old when first pruned. Fruit yields were recorded for 2 years before the first pruning and then in each year of pruning. In the final year, trees were harvested in four height zones: 0-2m; 2-4 m; 4-6 m; and >6 m. Cumulative yields over 3 years were similar on 6-m and control trees, but were less on 4-m trees due to the large volume of fruiting canopy removed in the first pruning. The height of the main fruiting zone was lowered on the 4-m trees, with yields in the 2-4-m zone similar to those in the 4-6-m zone of the control trees. Pruning to reduce the number and length of scaffold branches increased fruit yields on the remaining scaffolds without reducing fruit size. Results are discussed in terms of harvest efficiency and the benefits of small tree orchard systems.
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Claims 7
Claim · model-written summary
Pruning to reduce scaffold branch number and length increased avocado fruit yields on the remaining scaffolds
- Taxon
- Avocado
Persea americanae0 - Material
- cv. Hasse0
- Treatment
- Pruning to reduce the number and length of scaffold branchese4
- Outcome
- fruit yields on the remaining scaffoldse4
- Direction
- increasede4
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avocado ( Persea americana Mill. cv. Hass) trees were pruned over 3 years at either 4 or 6 m in height by removing or heading back selected limbs”
e4“Pruning to reduce the number and length of scaffold branches increased fruit yields on the remaining scaffolds without reducing fruit size”
Claim · model-written summary
Pruning to reduce scaffold branch number and length did not reduce avocado fruit size
- Taxon
- AvocadoPersea americanae0
- Material
- cv. Hasse0
- Treatment
- Pruning to reduce the number and length of scaffold branchese4
- Outcome
- fruit sizee4
- Direction
- without reducinge4
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avocado ( Persea americana Mill. cv. Hass) trees were pruned over 3 years at either 4 or 6 m in height by removing or heading back selected limbs”
e4“Pruning to reduce the number and length of scaffold branches increased fruit yields on the remaining scaffolds without reducing fruit size”
Claim · model-written summary
Cumulative 3-year yields of avocado trees pruned to 6 m were similar to control trees
- Taxon
- AvocadoPersea americanae0
- Material
- cv. Hasse0
- Treatment
- 6-me2
- Outcome
- Cumulative yields over 3 yearse2
- Direction
- similare2
- Comparator
- control treese2
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avocado ( Persea americana Mill. cv. Hass) trees were pruned over 3 years at either 4 or 6 m in height by removing or heading back selected limbs”
e2“Cumulative yields over 3 years were similar on 6-m and control trees, but were less on 4-m trees due to the large volume of fruiting canopy removed in the first pruning”
Claim · model-written summary
Cumulative 3-year yields of avocado trees pruned to 4 m were less than control trees due to removed fruiting canopy
- Taxon
- AvocadoPersea americanae0
- Material
- cv. Hasse0
- Treatment
- 4-m treese2
- Outcome
- Cumulative yields over 3 yearse2
- Direction
- lesse2
- Qualifier
- due to the large volume of fruiting canopy removed in the first pruninge2
- Comparator
- control treese2
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avocado ( Persea americana Mill. cv. Hass) trees were pruned over 3 years at either 4 or 6 m in height by removing or heading back selected limbs”
e2“Cumulative yields over 3 years were similar on 6-m and control trees, but were less on 4-m trees due to the large volume of fruiting canopy removed in the first pruning”
Claim · model-written summary
Pruning to 4 m lowered the height of the main fruiting zone of avocado trees
- Taxon
- AvocadoPersea americanae0
- Material
- cv. Hasse0
- Treatment
- 4-m treese3
- Outcome
- height of the main fruiting zonee3
- Direction
- lowerede3
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avocado ( Persea americana Mill. cv. Hass) trees were pruned over 3 years at either 4 or 6 m in height by removing or heading back selected limbs”
e3“The height of the main fruiting zone was lowered on the 4-m trees, with yields in the 2-4-m zone similar to those in the 4-6-m zone of the control trees”
Claim · model-written summary
Yields in the 2-4-m zone of 4-m pruned avocado trees were similar to the 4-6-m zone of control trees
- Taxon
- AvocadoPersea americanae0
- Material
- cv. Hasse0
- Treatment
- 4-m treese3
- Outcome
- yields in the 2-4-m zonee3
- Direction
- similare3
- Comparator
- 4-6-m zone of the control treese3
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avocado ( Persea americana Mill. cv. Hass) trees were pruned over 3 years at either 4 or 6 m in height by removing or heading back selected limbs”
e3“The height of the main fruiting zone was lowered on the 4-m trees, with yields in the 2-4-m zone similar to those in the 4-6-m zone of the control trees”
Claim · model-written summary
Avocado trees had similar crop loads before pruning
- Taxon
- AvocadoPersea americanae0
- Outcome
- crop loadse5
- Direction
- similare5
- Qualifier
- before pruninge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avocado ( Persea americana Mill. cv. Hass) trees were pruned over 3 years at either 4 or 6 m in height by removing or heading back selected limbs”
e5“All trees had similar crop loads before pruning”
The same questions in other papers
pruning · yield · Persea americana (avocado)Results differ
9 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- positive
- no effect
9 papers more in this group
See all 13 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.