Abstract
The experiment was carried out to clarify the effects of nitrogen supplied in various growth stages from the transplanting time middle in October to the termination of harvest early in July, on the growth and yield of strawberry (var. Donner) in sand culture outdoors.The control plants supplied with nitrogen throughout all stages of growth were the highest in the number of flowers and yield of fruits.In the plants withheld nitrogen supply after late in April or late in February, the growth of tops and roots were inferior to those of the control. Their number of flowers and yield of fruits were also less.When plants were not supplied with nitrogen during the winter period from late in December to late in February, their number of flowers and yield of fruits were less than those in control plants, however, their yield was the highest among other treatments except the control.Both the number of flower clusters and of flowers decreased remarkably in the treatments withheld nitrogen supply from the transplanting time till late in December or late in February. When nitrogen was supplied afterward to the plants in these treatments, growth of tops and roots became vigorously, and runner production was also active. Although the fruit yields in these treatments were decreased due to their smaller number of flowers, their fruit set percentages, average fruit weight and soluble solid content of fruits were higher than those in the control.
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Claims 9
Claim · model-written summary
Continuous nitrogen supply gave the highest flower number and fruit yield.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- supplied with nitrogen throughout all stages of growthe0
- Outcome
- number of flowers and yield of fruitse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
t0“strawberry”
e0“The control plants supplied with nitrogen throughout all stages of growth were the highest in the number of flowers and yield of fruits”
Claim · model-written summary
Withholding nitrogen after late April or late February reduced top and root growth relative to the control.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- withheld nitrogen supply after late in April or late in Februarye0
- Outcome
- growth of tops and rootse0
- Direction
- inferiore0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“In the plants withheld nitrogen supply after late in April or late in February, the growth of tops and roots were inferior to those of the control”
Claim · model-written summary
Withholding nitrogen after late April or late February reduced flower number and fruit yield.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- withheld nitrogen supply after late in April or late in Februarye1
- Outcome
- number of flowers and yield of fruitse0
- Direction
- lesse0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“Their number of flowers and yield of fruits were also less”
e1“In the plants withheld nitrogen supply after late in April or late in February, the growth of tops and roots were inferior to those of the control”
e2“The control plants supplied with nitrogen throughout all stages of growth were the highest in the number of flowers and yield of fruits”
Claim · model-written summary
Withholding nitrogen during winter reduced flower number and fruit yield relative to controls.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- not supplied with nitrogen during the winter period from late in December to late in Februarye0
- Outcome
- number of flowers and yield of fruitse0
- Direction
- lesse0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“When plants were not supplied with nitrogen during the winter period from late in December to late in February, their number of flowers and yield of fruits were less than those in control plants”
Claim · model-written summary
Winter nitrogen withholding gave the highest yield among noncontrol treatments.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- not supplied with nitrogen during the winter period from late in December to late in Februarye1
- Outcome
- yielde0
- Direction
- higheste0
- Comparator
- other treatments except the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“their yield was the highest among other treatments except the control”
e1“When plants were not supplied with nitrogen during the winter period from late in December to late in February, their number of flowers and yield of fruits were less than those in control plants”
Claim · model-written summary
Withholding nitrogen from transplanting until late December or February markedly reduced flower clusters and flowers.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- withheld nitrogen supply from the transplanting time till late in December or late in Februarye0
- Outcome
- number of flower clusters and of flowerse0
- Direction
- decreased remarkablye0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“Both the number of flower clusters and of flowers decreased remarkably in the treatments withheld nitrogen supply from the transplanting time till late in December or late in February”
e1“The control plants supplied with nitrogen throughout all stages of growth were the highest in the number of flowers and yield of fruits”
Claim · model-written summary
Subsequent nitrogen supply after early withholding stimulated top and root growth and runner production.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- nitrogen was supplied afterwarde0
- Outcome
- growth of tops and roots became vigorously, and runner production was also activee0
- Direction
- vigorouslye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“When nitrogen was supplied afterward to the plants in these treatments, growth of tops and roots became vigorously, and runner production was also active”
Claim · model-written summary
Early nitrogen withholding reduced fruit yield because there were fewer flowers.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- withheld nitrogen supply from the transplanting time till late in December or late in Februarye1
- Outcome
- fruit yieldse0
- Direction
- decreasede0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“Although the fruit yields in these treatments were decreased due to their smaller number of flowers”
e1“Both the number of flower clusters and of flowers decreased remarkably in the treatments withheld nitrogen supply from the transplanting time till late in December or late in February”
e2“The control plants supplied with nitrogen throughout all stages of growth were the highest in the number of flowers and yield of fruits”
Claim · model-written summary
Early nitrogen withholding increased fruit set percentage, average fruit weight and fruit soluble solids relative to the control.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- withheld nitrogen supply from the transplanting time till late in December or late in Februarye1
- Outcome
- fruit set percentages, average fruit weight and soluble solid content of fruitse0
- Direction
- highere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“their fruit set percentages, average fruit weight and soluble solid content of fruits were higher than those in the control”
e1“Both the number of flower clusters and of flowers decreased remarkably in the treatments withheld nitrogen supply from the transplanting time till late in December or late in February”
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