Abstract
Abstract Pretransplanting nutritional conditioning (PNC) regimes were evaluated for their effects on improving tolerance to transplant shock and increasing early fruit production. Muskmelon seedlings ( Cucumis melo var. reticulatus L. ‘Magnum 45’) were fertilized twice weekly with solutions containing N, P, and K to determine nutrient needs required to produce high-quality transplants. Seedling height, stem diameter, leaf area, shoot and root dry weights, leaf number, and shoot: root ratios of 27-day-old transplants increased as N rates increased from 10 to 250 mg liter −1 . These growth variables also increased with P from 5 to 25 mg·liter −1 but decreased as P increased from 25 to 125 mgliter −1 . Increasing K rates from 10 to 250 mg·liter −1 increased seedling height, stem diameter, and leaf area. Nine PNC regimes ranging from low to high N-P-K status were tested under field conditions to determine any long-term advantage. Generally, as PNC levels increased, transplant shock (percentage of necrotic leaves) increased as measured 12 days after transplanting. However, vining, female flowering, fruit set, and early yields increased as PNC levels increased. A high level of PNC (250N-125P-250K, mg·liter −1 ) conditioned transplants to overcome shock and to resume growth sooner and yield earlier than those at lower PNC levels.
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Claims 10
Claim · model-written summary
Raising N from 10 to 250 mg per liter increased seedling height, stem diameter and leaf area.
- Taxon
- Muskmelon
.jpg?width=60)
Cucumis melot0 - Organ / stage
- 27-day-old transplantse0
- Treatment
- N rates increased from 10 to 250 mg liter −1e0
- Outcome
- Seedling height, stem diameter, leaf areae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Seedling height, stem diameter, leaf area, shoot and root dry weights, leaf number, and shoot: root ratios of 27-day-old transplants increased as N rates increased from 10 to 250 mg liter −1 .”
t0“Muskmelon”
Claim · model-written summary
Raising N increased shoot and root dry weights, leaf number and shoot:root ratio.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- N rates increased from 10 to 250 mg liter −1e0
- Outcome
- shoot and root dry weights, leaf number, and shoot: root ratiose0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling height, stem diameter, leaf area, shoot and root dry weights, leaf number, and shoot: root ratios of 27-day-old transplants increased as N rates increased from 10 to 250 mg liter −1 .”
t0“Muskmelon”
Claim · model-written summary
Growth variables increased as P rose from 5 to 25 mg per liter.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- P from 5 to 25 mg·liter −1e0
- Outcome
- growth variablese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These growth variables also increased with P from 5 to 25 mg·liter −1 but decreased as P increased from 25 to 125 mgliter −1 .”
t0“Muskmelon”
Claim · model-written summary
Growth variables decreased as P rose from 25 to 125 mg per liter.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- P increased from 25 to 125 mgliter −1e0
- Outcome
- growth variablese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These growth variables also increased with P from 5 to 25 mg·liter −1 but decreased as P increased from 25 to 125 mgliter −1 .”
t0“Muskmelon”
Claim · model-written summary
Increasing K from 10 to 250 mg per liter increased seedling height, stem diameter and leaf area.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- K rates from 10 to 250 mg·liter −1e0
- Outcome
- seedling height, stem diameter, and leaf areae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing K rates from 10 to 250 mg·liter −1 increased seedling height, stem diameter, and leaf area.”
t0“Muskmelon”
Claim · model-written summary
Higher PNC generally increased necrotic leaves 12 days after transplanting.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- PNC levels increasede0
- Outcome
- transplant shock (percentage of necrotic leaves)e0
- Direction
- increasede0
- Qualifier
- 12 days after transplantinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Generally, as PNC levels increased, transplant shock (percentage of necrotic leaves) increased as measured 12 days after transplanting.”
t0“Muskmelon”
Claim · model-written summary
Higher PNC increased vining, female flowering and fruit set.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- PNC levels increasede0
- Outcome
- vining, female flowering, fruit sete0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, vining, female flowering, fruit set, and early yields increased as PNC levels increased.”
t0“Muskmelon”
Claim · model-written summary
Higher PNC increased early yields.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- PNC levels increasede0
- Outcome
- early yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, vining, female flowering, fruit set, and early yields increased as PNC levels increased.”
t0“Muskmelon”
Claim · model-written summary
High PNC enabled transplants to overcome shock and resume growth sooner than lower PNC.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- high level of PNC (250N-125P-250K, mg·liter −1 )e0
- Outcome
- overcome shock and to resume growthe0
- Direction
- soonere0
- Comparator
- lower PNC levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A high level of PNC (250N-125P-250K, mg·liter −1 ) conditioned transplants to overcome shock and to resume growth sooner and yield earlier than those at lower PNC levels.”
t0“Muskmelon”
Claim · model-written summary
High PNC produced earlier yield than lower PNC.
- Taxon
- MuskmelonCucumis melot0
- Treatment
- high level of PNC (250N-125P-250K, mg·liter −1 )e0
- Outcome
- yielde0
- Direction
- earliere0
- Comparator
- lower PNC levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A high level of PNC (250N-125P-250K, mg·liter −1 ) conditioned transplants to overcome shock and to resume growth sooner and yield earlier than those at lower PNC levels.”
t0“Muskmelon”
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See all 12 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.