Abstract
Annual pruning was compared to nonpruning for 8 years and to two alternate-year pruning treatments for 4 years in a mature, full-canopied ‘Ashley’ walnut orchard. Pruning increased light penetration and subsequent nut distribution throughout the canopy. Nut size and percent edible kernel wen? consistently lower in nonpruned trees than in trees pruned annually or biennially. However, annual pruning did not improve yield over that of nonpruned trees because fruitful spurs were removed. Alternate-year pruning resulted in yields comparable to those for nonpruned and annually pruned trees in the year following pruning. Biennially pruned trees yielded more than annually or nonpruned trees during the year pruning was not performed. Alternate-year pruning produced the highest income per acre even when the cost of pruning was considered.
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Claims 7
Claim · model-written summary
Pruning increased canopy light penetration and nut distribution.
- Taxon
- walnutt0
- Treatment
- Pruninge0
- Outcome
- light penetration and subsequent nut distributione0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Pruning increased light penetration and subsequent nut distribution throughout the canopy.”
t0“walnut”
Claim · model-written summary
Nonpruned trees had smaller nuts and less edible kernel than annually or biennially pruned trees.
Verbatim
e0“Nut size and percent edible kernel wen? consistently lower in nonpruned trees than in trees pruned annually or biennially.”
t0“walnut”
Claim · model-written summary
Annual pruning did not improve yield relative to nonpruning.
Verbatim
e0“annual pruning did not improve yield over that of nonpruned trees because fruitful spurs were removed.”
t0“walnut”
Claim · model-written summary
Fruitful spur removal explained the lack of yield gain with annual pruning.
Verbatim
e0“annual pruning did not improve yield over that of nonpruned trees because fruitful spurs were removed.”
t0“walnut”
Claim · model-written summary
Alternate-year pruning gave yields comparable to nonpruned and annually pruned trees in the year after pruning.
Verbatim
e0“Alternate-year pruning resulted in yields comparable to those for nonpruned and annually pruned trees in the year following pruning.”
t0“walnut”
Claim · model-written summary
Biennially pruned trees yielded more than annual or nonpruned trees in the year without pruning.
Verbatim
e0“Biennially pruned trees yielded more than annually or nonpruned trees during the year pruning was not performed.”
t0“walnut”
Claim · model-written summary
Alternate-year pruning produced the highest income per acre after pruning costs.
- Taxon
- walnutt0
- Treatment
- Alternate-year pruninge0
- Outcome
- income per acree0
- Direction
- higheste0
- Qualifier
- even when the cost of pruning was considerede0
Not reportedComparator
Verbatim
e0“Alternate-year pruning produced the highest income per acre even when the cost of pruning was considered.”
t0“walnut”
The same questions in other papers
pruning · yield · Juglans (walnuts)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.