Abstract
1. The trees used for the experiments were Tujimura Unshiu orange of 18-year-old. The trees had been very vigorus and the difference between production in the“on”and“off”years had been quite pronounced.2. Treatment(1) Fruit-thinningFruits were thinned on July 18th and 19th. The number of fruit left on a tree at thinning was determined by the amount of leaf surface. Fruits were reduced so as to have 20 to 25 leaves to each fruit left.(2) Fertilizer application(a) Abundant amount application : Orchard was sod-mulched and nitrogen (18.6kg), phosphorus (16.8kg) and potassium (20.4kg) per 10 are were applied in three applications, at the beginning of spring, summer and fall.(b) Small amount application : Orchard was non-mulched and nitrogen (13.5kg), phosphorus (11.25kg) and potassium (11.25kg) per 10 are were applied at the beginning of spring.(3) PruningThe trees were pruned in March. (Table 3)(a) Moderate pruning: In the case of the on-year tree in the preceding season, shoots were thinned out moderately and the fruited shoots were cut back. In the case of the off-year tree in the preceding season, spring flush, summer and fall flushes were moderately thinned out.(b) Heavy pruning : Shoots were rather heavily cut back.3. ResultsHeavy crop caused the depletion of food supply and reduced the storage of carbohydrates and other substances in the plant body. It reduced the growth of all parts of the tree and the formation of flower buds in the succeeding year.The reduction of the crop had a favorable effect in maintaining annual bearing condition. Fruit thinning changed most effectively alternate bearing habit to annual bearing condition.The trees which had shown strong alternate bearing tendency in the past several seasons required moderate pruning and abundant application of fertilizer in addition to the fruit thinning to recover.The fertilizer application promoted the vegetative growth and also fruit growth.Pruning with a moderate thinning stimulated the flowering shoot growth in the succeeding year.
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Claims 9
Claim · model-written summary
Heavy cropping depleted stored carbohydrates and other substances.
- Taxon
- Satsuma orange
Citrus unshiut0 - Treatment
- Heavy crope0
- Outcome
- storage of carbohydrates and other substancese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heavy crop caused the depletion of food supply and reduced the storage of carbohydrates and other substances in the plant body”
t0“Satsuma orange”
Claim · model-written summary
Heavy cropping reduced growth of all tree parts.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- Heavy crope1
- Outcome
- growth of all parts of the treee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It reduced the growth of all parts of the tree and the formation of flower buds in the succeeding year”
t0“Satsuma orange”
e1“Heavy crop”
Claim · model-written summary
Heavy cropping reduced flower bud formation the next year.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- Heavy crope1
- Outcome
- formation of flower buds in the succeeding yeare0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It reduced the growth of all parts of the tree and the formation of flower buds in the succeeding year”
t0“Satsuma orange”
e1“Heavy crop”
Claim · model-written summary
Reducing crop load favored annual bearing.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- reduction of the crope0
- Outcome
- annual bearing conditione0
- Direction
- favorable effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction of the crop had a favorable effect in maintaining annual bearing condition”
t0“Satsuma orange”
Claim · model-written summary
Fruit thinning most effectively changed alternate bearing to annual bearing.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- Fruit thinninge0
- Outcome
- annual bearing conditione0
- Direction
- most effectivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit thinning changed most effectively alternate bearing habit to annual bearing condition”
t0“Satsuma orange”
Claim · model-written summary
Trees with a strong history of alternate bearing required moderate pruning and abundant fertilizer in addition to thinning for recovery.
Verbatim
e0“The trees which had shown strong alternate bearing tendency in the past several seasons required moderate pruning and abundant application of fertilizer in addition to the fruit thinning to recover”
Claim · model-written summary
Fertilizer application promoted vegetative growth.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- fertilizer applicatione0
- Outcome
- vegetative growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fertilizer application promoted the vegetative growth and also fruit growth”
t0“Satsuma orange”
Claim · model-written summary
Fertilizer application promoted fruit growth.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- fertilizer applicatione0
- Outcome
- fruit growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fertilizer application promoted the vegetative growth and also fruit growth”
t0“Satsuma orange”
Claim · model-written summary
Moderate thinning with pruning stimulated flowering shoot growth the next year.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- Pruning with a moderate thinninge0
- Outcome
- flowering shoot growth in the succeeding yeare0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pruning with a moderate thinning stimulated the flowering shoot growth in the succeeding year”
t0“Satsuma orange”
The same questions in other papers
pruning · growth · Citrus unshiu (satsuma mandarin)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
fertilization · growth · Citrus unshiu (satsuma mandarin)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
1 paper more in this group
See all 5 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.