Abstract
1. The effect of phosphate applications to young Satsuma orange trees planted in concrete frames on the growth, yield, fruit quality and leaf composition were investigated during 1959 to 1963. Two- year-old tree grafted on yuzu or trifoliate rootstock was planted on March, 1958, and each tree received 12.8g of phosphate as a nutrient solution during 1958. In the subsequent year, phosphate application was changed from the rate of 0 to 2, although nitrogen, potassium and magnesium were equally applied in each.2. The growth of young trees on the average of 4 years data obtained from 1959 to 1963 did not show any effects by the phosphate applications. However, the growth of young trees on the same soil which had not been applied nutrient solution in the previous year was considerably improved by phosphate applications.3. The yield, contents of soluble solids in fruit juice and of inorganic elements in leaves were not affected by phosphate applications during 1960 to 1963. The content of acid in fruit juice, however, was significantly lower in phosphate treated plots than in untreated plot, as shown in the average data from 1960 to 1963, and in 1962.4. Phosphate application tends to decrease reddish color of the fruits.5. The yield, content of soluble solids in fruit juice obtained from young Satsuma orange trees on trifoliate rootstock increased more than that on yuzu root stock.6. The content of soluble solids in a large fruit obtained from the trees on trifoliate rootstock was less than that in a small one, however, the reverse tendency was found in fruits on yuzu root stock. It is also noted that possitive correlation was found between the content of acid and that of soluble solids in fruits on trifoliate rootstock in non-phosphate plot, and negative correlation was found between them in fruits on yuzu rootstock in non-phosphate plot.7. Young Satsuma orange trees on yuzu rootstock used in this experiment seemed to be not so vigorous as adult trees on the same rootstock are.
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Claims 10
Claim · model-written summary
Phosphate applications did not change the growth of young Satsuma orange trees on average over four years.
- Taxon
- Satsuma orange
Citrus unshiut0 - Treatment
- phosphate applicationse1
- Outcome
- growthe1
- Direction
- did not show any effectse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e1“The growth of young trees on the average of 4 years data obtained from 1959 to 1963 did not show any effects by the phosphate applications”
Claim · model-written summary
Phosphate applications considerably improved growth of young trees on soil that had not received nutrient solution the previous year.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- phosphate applicationse2
- Outcome
- growthe2
- Direction
- considerably improvede2
- Comparator
- the same soil which had not been applied nutrient solution in the previous yeare2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e2“the growth of young trees on the same soil which had not been applied nutrient solution in the previous year was considerably improved by phosphate applications”
Claim · model-written summary
Phosphate applications did not affect fruit yield, soluble solids in juice or leaf inorganic elements during 1960-1963.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- phosphate applicationse3
- Outcome
- yielde3
- Direction
- not affectede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e3“The yield, contents of soluble solids in fruit juice and of inorganic elements in leaves were not affected by phosphate applications during 1960 to 1963”
Claim · model-written summary
Phosphate-treated plots had significantly lower fruit juice acid content than untreated plots.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- phosphate treated plotse4
- Outcome
- content of acid in fruit juicee4
- Direction
- significantly lowere4
- Comparator
- untreated plote4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e4“The content of acid in fruit juice, however, was significantly lower in phosphate treated plots than in untreated plot”
Claim · model-written summary
Phosphate application tends to decrease the reddish colour of Satsuma orange fruits.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- Phosphate applicatione5
- Outcome
- reddish color of the fruitse5
- Direction
- tends to decreasee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e5“Phosphate application tends to decrease reddish color of the fruits”
Claim · model-written summary
Yield and fruit juice soluble solids of Satsuma orange on trifoliate rootstock increased more than on yuzu rootstock.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- trifoliate rootstocke6
- Outcome
- yielde6
- Direction
- increased moree6
- Qualifier
- content of soluble solids in fruit juicee6
- Comparator
- yuzu root stocke6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e6“The yield, content of soluble solids in fruit juice obtained from young Satsuma orange trees on trifoliate rootstock increased more than that on yuzu root stock”
Claim · model-written summary
On trifoliate rootstock, soluble solids were lower in large fruit than in small fruit.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- trifoliate rootstocke7
- Outcome
- content of soluble solids in a large fruite7
- Direction
- was less thane7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e7“The content of soluble solids in a large fruit obtained from the trees on trifoliate rootstock was less than that in a small one”
Claim · model-written summary
On trifoliate rootstock without phosphate, fruit acid and soluble solids were positively correlated.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- trifoliate rootstocke0
- Outcome
- content of acid and that of soluble solidse0
- Direction
- possitive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e0“possitive correlation was found between the content of acid and that of soluble solids in fruits on trifoliate rootstock in non-phosphate plot”
Claim · model-written summary
On yuzu rootstock without phosphate, fruit acid and soluble solids were negatively correlated.
- Taxon
- Satsuma orangeCitrus unshiut0
- Treatment
- yuzu rootstocke2
- Outcome
- correlatione2
- Direction
- negative correlatione2
- Qualifier
- between theme2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e2“negative correlation was found between them in fruits on yuzu rootstock in non-phosphate plot”
Claim · model-written summary
Young Satsuma orange trees on yuzu rootstock seemed less vigorous than adult trees on the same rootstock.
- Taxon
- Satsuma orangeCitrus unshiut0
- Outcome
- vigorouse3
- Direction
- not so vigorouse3
- Qualifier
- seemede3
- Comparator
- adult treese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Satsuma orange”
e3“Young Satsuma orange trees on yuzu rootstock used in this experiment seemed to be not so vigorous as adult trees on the same rootstock are”
The same questions in other papers
phosphorus · growth · Citrus unshiu (satsuma mandarin)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
grafting · yield · Citrus unshiu (satsuma mandarin)Results agree
1 paper in the same direction as this paper
- positive
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.