Abstract
Defoliation and girdling were performed on spurs of different ages of 'Nijisseiki' pears (Pyrus pyrifolia Nakai) 10 days after anthesis, and the effects on fruit growth and quality, carbohydrate levels of leaves and shoots on the spurs were determined. Girdling resulted in the reduction of fruit size and fresh weight on 1-and 3-year-old spurs at harvest, but did not affect fruit growth, final size, and fresh weight on 5- and 7-year-old spurs. Complete spur leaf removal (100% LR) had little effect on fruit development on 1-year-old spurs during the whole growing season, but significantly retarded fruit development and decreased the final size of fruit on spurs over 3 years old. This treatment also increased flesh firmness, soluble solids and pH of fruit on spurs over 3 years old which may be related to the decreased fruit size. Presence of bourse shoot and 50% LR treatment had little effect on the final size of fruit on the spurs of different ages. Our results indicate that spur leaves play a more significant role in fruit growth and development as the spur age increases. The growth and development of fruit on a 1-year-old spur depends to a great extent, on the leaves external to the spur complex ; whereas fruits on 5-year-old spurs or older depend on their own spur leaves under normal conditions. On 3-year-old spurs, the fruit is nourished by its spur leaves and leaves outside the spur. Spur leaves seem to have an important role in the accumulation of carbohydrates in the spur, especially in the older parts of the spur shoot.
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Claims 12
Claim · model-written summary
Girdling reduced fruit size and fresh weight on one and three year old spurs.
- Taxon
- Pear
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communist0 - Material
- 'Nijisseiki't0
- Organ / stage
- 1-and 3-year-old spurse0
- Treatment
- Girdlinge0
- Outcome
- fruit size and fresh weighte0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
e0“Girdling resulted in the reduction of fruit size and fresh weight on 1-and 3-year-old spurs at harvest”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Girdling did not affect fruit growth, final size or fresh weight on five and seven year old spurs.
- Taxon
- PearPyrus communist0
- Organ / stage
- 5- and 7-year-old spurse0
- Outcome
- fruit growth, final size, and fresh weighte0
- Direction
- did not affecte0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“did not affect fruit growth, final size, and fresh weight on 5- and 7-year-old spurs”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Complete leaf removal had little effect on development of fruit on one year old spurs.
- Taxon
- PearPyrus communist0
- Organ / stage
- 1-year-old spurse0
- Treatment
- Complete spur leaf removal (100% LR)e0
- Outcome
- fruit developmente0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Complete spur leaf removal (100% LR) had little effect on fruit development on 1-year-old spurs during the whole growing season”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Complete leaf removal retarded fruit development and decreased final fruit size on spurs over three years old.
- Taxon
- PearPyrus communist0
- Organ / stage
- spurs over 3 years olde0
- Treatment
- Complete spur leaf removal (100% LR)e1
- Outcome
- fruit development and decreased the final size of fruite0
- Direction
- retardede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly retarded fruit development and decreased the final size of fruit on spurs over 3 years old”
e1“Complete spur leaf removal (100% LR)”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Complete leaf removal increased fruit flesh firmness, soluble solids and pH on older spurs.
- Taxon
- PearPyrus communist0
- Organ / stage
- fruit on spurs over 3 years olde0
- Treatment
- Complete spur leaf removal (100% LR)e1
- Outcome
- flesh firmness, soluble solids and pHe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment also increased flesh firmness, soluble solids and pH of fruit on spurs over 3 years old”
e1“Complete spur leaf removal (100% LR)”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Bourse shoot presence had little effect on final fruit size.
- Taxon
- PearPyrus communist0
- Treatment
- Presence of bourse shoote0
- Outcome
- final size of fruite0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Presence of bourse shoot and 50% LR treatment had little effect on the final size of fruit on the spurs of different ages”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Fifty percent leaf removal had little effect on final fruit size.
- Taxon
- PearPyrus communist0
- Treatment
- 50% LR treatmente0
- Outcome
- final size of fruite0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Presence of bourse shoot and 50% LR treatment had little effect on the final size of fruit on the spurs of different ages”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Spur leaves played a larger role in fruit growth as spur age increased.
- Taxon
- PearPyrus communist0
- Organ / stage
- spur leavese0
- Outcome
- fruit growth and developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spur leaves play a more significant role in fruit growth and development as the spur age increases”
t0“'Nijisseiki' Pear”
Claim · model-written summary
One year old spur fruit depended largely on leaves outside the spur complex.
- Taxon
- PearPyrus communist0
- Organ / stage
- leaves external to the spur complexe0
- Outcome
- growth and development of fruit on a 1-year-old spure0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth and development of fruit on a 1-year-old spur depends to a great extent, on the leaves external to the spur complex”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Fruit on spurs five years and older depended on their own spur leaves.
- Taxon
- PearPyrus communist0
- Organ / stage
- spur leavese0
- Outcome
- fruits on 5-year-old spurs or older depend on their own spur leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits on 5-year-old spurs or older depend on their own spur leaves under normal conditions”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Three year old spur fruit was nourished by its spur leaves and outside leaves.
- Taxon
- PearPyrus communist0
- Organ / stage
- spur leaves and leaves outside the spure0
- Outcome
- fruit is nourishede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On 3-year-old spurs, the fruit is nourished by its spur leaves and leaves outside the spur”
t0“'Nijisseiki' Pear”
Claim · model-written summary
Spur leaves appeared important for carbohydrate accumulation, especially in older spur shoots.
- Taxon
- PearPyrus communist0
- Organ / stage
- Spur leavese0
- Outcome
- accumulation of carbohydrates in the spure0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spur leaves seem to have an important role in the accumulation of carbohydrates in the spur, especially in the older parts of the spur shoot”
t0“'Nijisseiki' Pear”
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See all 14 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.