Abstract
Purpose: This paper presents the effects of soil drought stress during the growing season and pre-harvest period on tree growth and fruit quality of “Yumi” peach, an early season cultivar. Methods: Soil drought stresses were treated with four levels of -30, -50, -60, and -70 kPa during long term (LT) and short term (ST). For LT treatments, soil water was controlled for nine weeks from May 1 to July 5, which was assumed as the full growing season. For ST treatments, soil water was controlled for four weeks from June 10 to July 5, which was assumed as the pre-harvest season. Tree growth and leaf photosynthesis were measured, and fruit characteristics such as fruit weight and diameter, soluble solid and tannin contents, and harvest date were investigated. Results: Soil water deficit treatments caused a significant reduction in tree growth, leaf photosynthesis, and fruit enlargement. LT water stress over -60 kPa during the full growing season caused significant reduction in tree growth, including shoot length, trunk girth, leaf photosynthesis, and fruit enlargement. ST water stress over -60 kPa during the pre-harvest period also induced significant reduction in leaf photosynthesis and fruit enlargement, while tree growth was not reduced. In terms of fruit quality, water stress over -50 kPa significantly reduced fruit weight, increased soluble solid and tannin contents, and delayed harvest time in both LT and ST treatments. Conclusions: As a result, it is assumed that LT water stress over -60 kPa can reduce both tree growth and fruit enlargement, whereas ST water stress over -50 kPa can reduce fruit enlargement without reducing tree growth. From an agricultural perspective, moderate water deficit like -50 kPa treatments could have positive effects, such increased fruit soluble solid contents along with minimal reduction in fruit size.
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Claims 9
Claim · model-written summary
Long-term water stress over -60 kPa in the full growing season significantly reduced shoot length and trunk girth of Yumi peach.
- Taxon
- peach
Prunus persicae0 - Treatment
- LT water stress over -60 kPa during the full growing seasone1
- Outcome
- shoot length, trunk girthe1
- Direction
- reductione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0““Yumi” peach, an early season cultivar”
e1“LT water stress over -60 kPa during the full growing season caused significant reduction in tree growth, including shoot length, trunk girth, leaf photosynthesis, and fruit enlargement”
Claim · model-written summary
Long-term water stress over -60 kPa in the full growing season significantly reduced leaf photosynthesis and fruit enlargement of Yumi peach.
- Taxon
- peachPrunus persicae0
- Treatment
- LT water stress over -60 kPa during the full growing seasone1
- Outcome
- leaf photosynthesis, and fruit enlargemente1
- Direction
- reductione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0““Yumi” peach, an early season cultivar”
e1“LT water stress over -60 kPa during the full growing season caused significant reduction in tree growth, including shoot length, trunk girth, leaf photosynthesis, and fruit enlargement”
Claim · model-written summary
Short-term water stress over -60 kPa in the pre-harvest period significantly reduced leaf photosynthesis and fruit enlargement of Yumi peach.
- Taxon
- peachPrunus persicae0
- Treatment
- ST water stress over -60 kPa during the pre-harvest periode2
- Outcome
- leaf photosynthesis and fruit enlargemente2
- Direction
- reductione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0““Yumi” peach, an early season cultivar”
e2“ST water stress over -60 kPa during the pre-harvest period also induced significant reduction in leaf photosynthesis and fruit enlargement”
Claim · model-written summary
Short-term water stress over -60 kPa in the pre-harvest period did not reduce tree growth of Yumi peach.
- Taxon
- peachPrunus persicae0
- Treatment
- ST water stress over -60 kPa during the pre-harvest periode2
- Outcome
- tree growthe3
- Direction
- not reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0““Yumi” peach, an early season cultivar”
e2“ST water stress over -60 kPa during the pre-harvest period also induced significant reduction in leaf photosynthesis and fruit enlargement”
e3“while tree growth was not reduced”
Claim · model-written summary
Water stress over -50 kPa significantly reduced fruit weight of Yumi peach.
- Taxon
- peachPrunus persicae0
- Treatment
- water stress over -50 kPae4
- Outcome
- fruit weighte4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0““Yumi” peach, an early season cultivar”
e4“water stress over -50 kPa significantly reduced fruit weight, increased soluble solid and tannin contents, and delayed harvest time in both LT and ST treatments”
Claim · model-written summary
Water stress over -50 kPa increased soluble solid content of Yumi peach fruit.
- Taxon
- peachPrunus persicae0
- Treatment
- water stress over -50 kPae4
- Outcome
- soluble solide4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0““Yumi” peach, an early season cultivar”
e4“water stress over -50 kPa significantly reduced fruit weight, increased soluble solid and tannin contents, and delayed harvest time in both LT and ST treatments”
Claim · model-written summary
Water stress over -50 kPa increased tannin content of Yumi peach fruit.
- Taxon
- peachPrunus persicae0
- Treatment
- water stress over -50 kPae4
- Outcome
- tannin contentse4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0““Yumi” peach, an early season cultivar”
e4“water stress over -50 kPa significantly reduced fruit weight, increased soluble solid and tannin contents, and delayed harvest time in both LT and ST treatments”
Claim · model-written summary
Water stress over -50 kPa delayed harvest time of Yumi peach in both long-term and short-term treatments.
- Taxon
- peachPrunus persicae0
- Treatment
- water stress over -50 kPae4
- Outcome
- harvest timee4
- Direction
- delayede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0““Yumi” peach, an early season cultivar”
e4“water stress over -50 kPa significantly reduced fruit weight, increased soluble solid and tannin contents, and delayed harvest time in both LT and ST treatments”
Claim · model-written summary
Moderate water deficit of -50 kPa could have positive effects on peach, such as higher soluble solid content with minimal reduction in fruit size.
- Taxon
- peachPrunus persicae0
- Treatment
- moderate water deficit like -50 kPa treatmentse5
- Outcome
- positive effectse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0““Yumi” peach, an early season cultivar”
e5“moderate water deficit like -50 kPa treatments could have positive effects, such increased fruit soluble solid contents along with minimal reduction in fruit size”
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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.