Abstract
The effects of water stress and/or chemical growth retardant, paclobutrazol, applied either as foliar spray or soil drench, on photosynthesis, tree vegetative and reproductive growth in young ponkan trees (Citrus reticulata Blanco cv. Yoshida) were evaluated. Paclobutrazol was applied when spring shoots were about 5 mm in length, either as an 840 ppm foliar spray or as a soil drench (0.5 g active ingredient per tree). Soil water stress of up to pF 2.95 was gradually imposed on the trees before re-watering. Water stress improved fruit set, whereas paclobutrazol reduced it. The proportion of abnormal flowers was increased by applying paclobutrazol without water stress. Abnormal flowers were reduced when paclobutrazol was applied in combination with water stress. Tree height increased about 14% for soil drench and 60% for foliar applied paclobutrazol based on initial heights at beginning of the experiment. Water stress caused up to 20% reduction in leaf expansion, reduced photosynthesis, and moderately reduced tree growth. Application of paclobutrazol ameliorated photosynthetic reductions associated with water stress, by maintaining higher photosynthetic and transpiration rates during water stress and ensuring quicker recovery after re-watering.
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Claims 11
Claim · model-written summary
Ponkan treatment affected fruit set as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)
.jpg?width=60)
Citrus reticulatat0 - Treatment
- Water stresse0
- Outcome
- fruit sete0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Water stress improved fruit set”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected fruit set as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- paclobutrazole0
- Outcome
- fruit sete0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress improved fruit set, whereas paclobutrazol reduced it”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected proportion of abnormal flowers as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- applying paclobutrazol without water stresse0
- Outcome
- proportion of abnormal flowerse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The proportion of abnormal flowers was increased by applying paclobutrazol without water stress”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected Abnormal flowers as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- paclobutrazol was applied in combination with water stresse0
- Outcome
- Abnormal flowerse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Abnormal flowers were reduced when paclobutrazol was applied in combination with water stress”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected Tree height as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- soil drenche0
- Outcome
- Tree heighte0
- Direction
- increasede0
- Value
- about 14%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tree height increased about 14% for soil drench”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected Tree height as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- foliar applied paclobutrazole0
- Outcome
- Tree heighte0
- Direction
- increasede0
- Value
- 60%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tree height increased about 14% for soil drench and 60% for foliar applied paclobutrazol”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected leaf expansion as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- Water stresse0
- Outcome
- leaf expansione0
- Direction
- reductione0
- Value
- up to 20%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress caused up to 20% reduction in leaf expansion”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected photosynthesis as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- Water stresse0
- Outcome
- photosynthesise0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress caused up to 20% reduction in leaf expansion, reduced photosynthesis, and moderately reduced tree growth”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected tree growth as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- Water stresse0
- Outcome
- tree growthe0
- Direction
- moderately reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress caused up to 20% reduction in leaf expansion, reduced photosynthesis, and moderately reduced tree growth”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected photosynthetic and transpiration rates as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- paclobutrazole0
- Outcome
- photosynthetic and transpiration ratese0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of paclobutrazol ameliorated photosynthetic reductions associated with water stress, by maintaining higher photosynthetic and transpiration rates during water stress and ensuring quicker recovery after re-watering”
t0“Ponkan (Citrus reticulata Blanco)”
Claim · model-written summary
Ponkan treatment affected recovery as reported.
- Taxon
- Ponkan (Citrus reticulata Blanco)Citrus reticulatat0
- Treatment
- paclobutrazole0
- Outcome
- recoverye0
- Direction
- quickere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of paclobutrazol ameliorated photosynthetic reductions associated with water stress, by maintaining higher photosynthetic and transpiration rates during water stress and ensuring quicker recovery after re-watering”
t0“Ponkan (Citrus reticulata Blanco)”
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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.