Abstract
Abstract The effects of varied supply of zinc (Zn) (0, 0.1, 0.2, 1.0, and 10 mg Zn kg‐1 soil) and phosphorus (P) (low P: 50 mg P kg‐1 soil and high P: 150 mg P kg‐1 soil) on vegetative growth, plant tissue Zn and P concentration and their uptake were studied in six weeks old plants of two oilseed rape (Brassica napus) genotypes (92–13, a traditional genotype from China high in both erucic acid and glucosinolate, and Xinza‐2, a hybrid from China low in erucic acid and glucosinolate) grown in Laffer sand (low in Zn and P) under controlled environmental conditions. Two oilseed rape genotypes had a differential response to Zn application. Xinxa 2 responded significantly for shoot and root dry matter only up to 0.1 mg applied Zn kg‐1 soil, while 92–13 responded up to 0.2 mg Zn kg‐1 soil. Zinc at 10 mg kg‐1 soil slightly reduced shoot dry matter and drastically reduced root dry matter of both the genotypes. Shoot and root dry matter production at 0, 0.1, 0.2, and 1 mg Zn kg‐1 soil were significantly greater under high P supply compared with low P supply. High P supply did not accentuate Zn deficiency symptoms compared with low P supply even at nil Zn. Phosphorus concentration in plant parts was significantly higher at nil Zn compared with Zn application. An increase in P supply had a non‐significant effect on Zn concentration, but significantly increased the P concentration and P uptake in shoots. The results suggest that an increased supply of P at lower rates of Zn application was not detrimental for early vegetative growth and Zn uptake of two oilseed rape genotypes.
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Claims 11
Claim · model-written summary
Xinza‐2 shoot and root dry matter responded to zinc only up to 0.1 mg per kg soil.
- Taxon
- oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse1 - Material
- Xinxa 2e0
- Treatment
- 0.1 mg applied Zn kg‐1 soile0
- Outcome
- shoot and root dry mattere0
- Direction
- respondede0
- Value
- 0.1 mg applied Zn kg‐1 soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Xinxa 2 responded significantly for shoot and root dry matter only up to 0.1 mg applied Zn kg‐1 soil”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
Genotype 92–13 responded to zinc up to 0.2 mg per kg soil.
- Taxon
- oilseed rapeBrassica napuse1
- Material
- 92–13e0
- Treatment
- 0.2 mg Zn kg‐1 soile0
- Outcome
- respondede0
- Direction
- respondede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“92–13 responded up to 0.2 mg Zn kg‐1 soil”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
Zinc at 10 mg per kg soil slightly reduced shoot dry matter of both genotypes.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- Zinc at 10 mg kg‐1 soile0
- Outcome
- shoot dry mattere0
- Direction
- reducede0
- Qualifier
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc at 10 mg kg‐1 soil slightly reduced shoot dry matter and drastically reduced root dry matter of both the genotypes”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
Zinc at 10 mg per kg soil drastically reduced root dry matter of both genotypes.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- Zinc at 10 mg kg‐1 soile0
- Outcome
- root dry mattere0
- Direction
- reducede0
- Qualifier
- drasticallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc at 10 mg kg‐1 soil slightly reduced shoot dry matter and drastically reduced root dry matter of both the genotypes”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
High phosphorus increased shoot and root dry matter at zinc rates from 0 through 1 mg per kg soil.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- high P supplye0
- Outcome
- Shoot and root dry matter productione0
- Direction
- greatere0
- Qualifier
- at 0, 0.1, 0.2, and 1 mg Zn kg‐1 soile0
- Comparator
- low P supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot and root dry matter production at 0, 0.1, 0.2, and 1 mg Zn kg‐1 soil were significantly greater under high P supply compared with low P supply”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
High phosphorus did not accentuate zinc deficiency symptoms, including at zero zinc.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- High P supplye0
- Outcome
- Zn deficiency symptomse0
- Direction
- did not accentuatee0
- Qualifier
- even at nil Zne0
- Comparator
- low P supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High P supply did not accentuate Zn deficiency symptoms compared with low P supply even at nil Zn”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
Plant phosphorus concentration was higher at zero zinc than with zinc application.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- nil Zne0
- Outcome
- Phosphorus concentration in plant partse0
- Direction
- highere0
- Comparator
- Zn applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus concentration in plant parts was significantly higher at nil Zn compared with Zn application”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
Increasing phosphorus had a non-significant effect on zinc concentration.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- increase in P supplye0
- Outcome
- Zn concentratione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in P supply had a non‐significant effect on Zn concentration”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
Increasing phosphorus significantly increased shoot phosphorus concentration.
- Taxon
- oilseed rapeBrassica napuse1
- Organ / stage
- shootse0
- Treatment
- increase in P supplye0
- Outcome
- P concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in P supply had a non‐significant effect on Zn concentration, but significantly increased the P concentration and P uptake in shoots”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
Increasing phosphorus significantly increased shoot phosphorus uptake.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- increase in P supplye0
- Outcome
- P uptake in shootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in P supply had a non‐significant effect on Zn concentration, but significantly increased the P concentration and P uptake in shoots”
e1“oilseed rape (Brassica napus)”
Claim · model-written summary
Higher phosphorus at low zinc was not detrimental to early vegetative growth and zinc uptake.
- Taxon
- oilseed rapeBrassica napuse0
- Treatment
- increased supply of P at lower rates of Zn applicatione0
- Outcome
- early vegetative growth and Zn uptakee0
- Direction
- not detrimentale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increased supply of P at lower rates of Zn application was not detrimental for early vegetative growth and Zn uptake of two oilseed rape genotypes”
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See all 34 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.