Abstract
Questions arise as to what to do with the fruits of persimmon trees when they are severely defoliated by a typhoon early in the season. In this study, the leaves of 5-year-old, field-grown ‘Fuyu’ trees were defoliated 75% on Sept. 3, 1999 and Sept. 6, 2001. Zero (control), 25, 50, and 75% of their fruits were then thinned on these trees, changing the leaf-to-fruit ratio to about 5, 7, 10, and 20, respectively. The ratio of non-defoliated intact trees was maintained at 20 throughout the season. Fruit weight and color increased to the level of intact trees when fruit thinning exceeded 25%, although the leaf-to-fruit ratio was as low as 7. On the other hand, fruit soluble solids responded poorly to the increase in fruit thinning on defoliated trees; even a 75% thinning could not restore them to the level of intact trees. Results suggested that fruit thinning could improve fruit size and color, but have a limited impact in increasing fruit soluble solids when the trees had lost 75% of their leaves in early September. In the following year, measurements of shoot growth, leaf area, fruit set, and fruit characteristics did not show consistent differences attributable to the thinnings on 75%-defoliated trees the previous year.
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Claims 4
Claim · model-written summary
In defoliated Fuyu persimmon trees, fruit weight and color increased to the level of intact trees when fruit thinning exceeded 25%, although the leaf-to-fruit ratio was as low as 7.
- Treatment
- fruit thinning exceeded 25%e0
- Outcome
- Fruit weight and colore0
- Direction
- increasede0
- Qualifier
- leaf-to-fruit ratio was as low as 7e0
- Comparator
- intact treese0
DiospyrosOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Persimmon”
e0“Fruit weight and color increased to the level of intact trees when fruit thinning exceeded 25%, although the leaf-to-fruit ratio was as low as 7”
Claim · model-written summary
Fruit soluble solids of defoliated trees responded poorly to fruit thinning; even 75% thinning could not restore them to the level of intact trees.
- Treatment
- fruit thinninge0
- Outcome
- fruit soluble solidse0
- Direction
- responded poorlye0
- Value
- 75% thinninge0
- Comparator
- intact treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Persimmon”
e0“fruit soluble solids responded poorly to the increase in fruit thinning on defoliated trees; even a 75% thinning could not restore them to the level of intact trees”
Claim · model-written summary
In the following year, shoot growth, leaf area and fruit set did not show consistent differences attributable to the previous year thinnings on 75%-defoliated persimmon trees.
- Treatment
- thinnings on 75%-defoliated treese0
- Outcome
- shoot growth, leaf area, fruit sete0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Persimmon”
e0“In the following year, measurements of shoot growth, leaf area, fruit set, and fruit characteristics did not show consistent differences attributable to the thinnings on 75%-defoliated trees the previous year”
Claim · model-written summary
In the following year, fruit characteristics did not show consistent differences attributable to the previous year thinnings on 75%-defoliated persimmon trees.
- Treatment
- thinnings on 75%-defoliated treese0
- Outcome
- fruit characteristicse0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Persimmon”
e0“In the following year, measurements of shoot growth, leaf area, fruit set, and fruit characteristics did not show consistent differences attributable to the thinnings on 75%-defoliated trees the previous year”
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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.