Abstract
Twenty-five-year-old `Cape Fear', `Desirable', and `Kiowa' pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees were either not pruned, or subjected to single selective or mechanical pruning using a mechanical hedger [or hedge pruning (HP)] in the dormant season 2003. Canopy light interception, yield, and nut quality were monitored during a period of three years. Leaf area index and light interception were significantly affected during the first growing season after treatment application, but after three years canopies grew back to control levels. In general, there were small positive effects observed on yield and nut quality after pruning. Minor improvements were recorded for `Desirable', in which yield was affected positively by both pruning strategies in 2004. However, most effects disappeared by the third year. `Desirable' responded better than `Cape Fear', whereas no beneficial effects were recorded on `Kiowa'. In 2005, yield was significantly reduced in HP trees of `Cape Fear' and `Kiowa'. Alternate bearing index was unaffected by pruning treatment or cultivar. Kernel percentage increased only in HP `Desirable' trees in 2003 and 2004. Kernel quality was improved in HP `Cape Fear' and `Desirable' in the first growing season after treatment application, but not in 2004. In 2005, quality was again improved in HP `Desirable'. The results of the current study indicate that one-time pruning of pecan trees induce positive short-term effect on light, but not necessarily an increase in productivity and nut quality.
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Claims 15
Claim · model-written summary
Pruning significantly affected leaf area index and light interception in the first growing season.
- Taxon
- pecan
_1_(24790682337).jpg?width=60)
Carya illinoinensist0 - Treatment
- treatment applicatione0
- Outcome
- Leaf area index and light interceptione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_1_(24790682337).jpg?width=500)
Verbatim
e0“Leaf area index and light interception were significantly affected during the first growing season after treatment application”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
Pruned canopies returned to control levels after three years.
- Taxon
- pecanCarya illinoinensist0
- Treatment
- pruningt0
- Outcome
- canopiese0
- Direction
- grew backe0
- Comparator
- control levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after three years canopies grew back to control levels”
t0“Pruning of Pecan Trees”
Claim · model-written summary
Pruning had small positive effects on yield and nut quality in general.
- Taxon
- pecanCarya illinoinensist0
- Treatment
- pruninge0
- Outcome
- yield and nut qualitye0
- Direction
- positivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general, there were small positive effects observed on yield and nut quality after pruning”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
Both pruning strategies improved Desirable yield in 2004.
- Taxon
- pecanCarya illinoinensist0
- Material
- `Desirable'e0
- Treatment
- both pruning strategiese0
- Outcome
- yielde0
- Direction
- positivelye0
- Qualifier
- 2004e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“`Desirable', in which yield was affected positively by both pruning strategies in 2004”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
Most pruning effects disappeared by the third year.
- Taxon
- pecanCarya illinoinensist0
- Treatment
- pruningt0
- Outcome
- effectse0
- Direction
- disappearede0
- Qualifier
- third yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most effects disappeared by the third year”
t0“Pruning of Pecan Trees”
Claim · model-written summary
Desirable responded better than Cape Fear.
- Taxon
- pecanCarya illinoinensist0
- Material
- `Desirable'e0
- Outcome
- responded bettere0
- Direction
- bettere0
- Comparator
- `Cape Fear'e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“`Desirable' responded better than `Cape Fear'”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
No beneficial pruning effects were recorded for Kiowa.
- Taxon
- pecanCarya illinoinensist0
- Material
- `Kiowa'e0
- Treatment
- pruningt0
- Outcome
- beneficial effectse0
- Direction
- no beneficial effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no beneficial effects were recorded on `Kiowa'”
t0“Pruning of Pecan Trees”
Claim · model-written summary
Hedge pruning significantly reduced Cape Fear yield in 2005.
- Taxon
- pecanCarya illinoinensist0
- Material
- `Cape Fear'e0
- Treatment
- HPe0
- Outcome
- yielde0
- Direction
- reducede0
- Qualifier
- 2005e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2005, yield was significantly reduced in HP trees of `Cape Fear' and `Kiowa'”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
Hedge pruning significantly reduced Kiowa yield in 2005.
- Taxon
- pecanCarya illinoinensist0
- Material
- `Kiowa'e0
- Treatment
- HPe0
- Outcome
- yielde0
- Direction
- reducede0
- Qualifier
- 2005e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2005, yield was significantly reduced in HP trees of `Cape Fear' and `Kiowa'”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
Pruning treatment and cultivar did not affect alternate bearing index.
- Taxon
- pecanCarya illinoinensist0
- Treatment
- pruning treatmente0
- Outcome
- Alternate bearing indexe0
- Direction
- unaffectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alternate bearing index was unaffected by pruning treatment or cultivar”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
Kernel percentage increased only in hedge-pruned Desirable in 2003 and 2004.
- Taxon
- pecanCarya illinoinensist0
- Material
- `Desirable'e0
- Treatment
- HPe0
- Outcome
- Kernel percentagee0
- Direction
- increasede0
- Qualifier
- 2003 and 2004e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kernel percentage increased only in HP `Desirable' trees in 2003 and 2004”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
Hedge pruning improved Cape Fear kernel quality in the first growing season.
- Taxon
- pecanCarya illinoinensist0
- Material
- `Cape Fear'e0
- Treatment
- HPe0
- Outcome
- Kernel qualitye0
- Direction
- improvede0
- Qualifier
- first growing seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kernel quality was improved in HP `Cape Fear' and `Desirable' in the first growing season after treatment application”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
Hedge pruning improved Desirable kernel quality in the first growing season.
- Taxon
- pecanCarya illinoinensist0
- Material
- `Desirable'e0
- Treatment
- HPe0
- Outcome
- Kernel qualitye0
- Direction
- improvede0
- Qualifier
- first growing seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kernel quality was improved in HP `Cape Fear' and `Desirable' in the first growing season after treatment application”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
Claim · model-written summary
The kernel quality improvement was absent in 2004.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but not in 2004”
t0“One-Time Pruning of Pecan Trees Induced Limited and Short-Term Benefits in Canopy Light Penetration, Yield, and Nut Quality”
Claim · model-written summary
Hedge pruning improved Desirable quality again in 2005.
- Taxon
- pecanCarya illinoinensist0
- Material
- `Desirable'e0
- Treatment
- HPe0
- Outcome
- qualitye0
- Direction
- improvede0
- Qualifier
- 2005e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2005, quality was again improved in HP `Desirable'”
t0“pecan [ Carya illinoinensis (Wangenh.) C. Koch] trees”
The same questions in other papers
pruning · yield · Carya illinoinensis (pecan)Results differ
17 papers in the same direction as this paper · 11 in the opposite direction
- negative
- negative
- negative
25 papers more in this group
See all 29 papers →pruning · quality: general · Carya illinoinensis (pecan)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
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.