Abstract
A greenhouse experiment was conducted to study seed quality, micronutrient contents and translocations in rapeseed as affected by nitrogen and zinc fertilizers. In this study, two cultivars of rapeseed (Licord and Modena), three N levels (100, 200 and 300 mg kg−1) and three Zn levels (0, 5 and 10 mg kg−1) with three replications were used. As N and Zn fertilizers’ rates increased, seed protein content and seed, shoot and root yield increased. The highest seed protein was obtained at 300 mg N kg−1 plus 10 mg Zn kg−1 treatment. Seed oil content was significantly decreased or increased at higher N and Zn rates, respectively. Application of N significantly increased Zn, Fe and Cu concentrations in seed, shoot and root, while decreased that of Mn. As Zn rates increased, concentration of Fe in seed and that of Zn in seed, shoot and root of both cultivars increased; however, Fe concentration in root and shoot and Mn and Cu concentrations in seed, root and shoot decreased. The average translocation of micronutrients from root to shoot was found to be in the order of Mn > Zn > Cu > Fe. Further studies are needed to confirm these findings in this field.
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Claims 12
Claim · model-written summary
Increasing N and Zn rates increased seed protein content.
- Taxon
- rapeseedt0
- Treatment
- N and Zn fertilizers’ ratese0
- Outcome
- seed protein contente0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“As N and Zn fertilizers’ rates increased, seed protein content and seed, shoot and root yield increased”
t0“rapeseed”
Claim · model-written summary
Increasing N and Zn rates increased seed, shoot and root yield.
- Taxon
- rapeseedt0
- Treatment
- N and Zn fertilizers’ ratese0
- Outcome
- seed, shoot and root yielde0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“As N and Zn fertilizers’ rates increased, seed protein content and seed, shoot and root yield increased”
t0“rapeseed”
Claim · model-written summary
Seed protein was highest under 300 mg N kg−1 plus 10 mg Zn kg−1.
- Taxon
- rapeseedt0
- Treatment
- 300 mg N kg−1 plus 10 mg Zn kg−1 treatmente0
- Outcome
- seed proteine0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“The highest seed protein was obtained at 300 mg N kg−1 plus 10 mg Zn kg−1 treatment”
t0“rapeseed”
Claim · model-written summary
Higher N rates significantly decreased seed oil content.
Not reportedComparator
Verbatim
e0“Seed oil content was significantly decreased or increased at higher N and Zn rates, respectively”
t0“rapeseed”
Claim · model-written summary
Higher Zn rates significantly increased seed oil content.
Not reportedComparator
Verbatim
e0“Seed oil content was significantly decreased or increased at higher N and Zn rates, respectively”
t0“rapeseed”
Claim · model-written summary
N application significantly increased Zn, Fe and Cu concentrations in seed, shoot and root.
- Taxon
- rapeseedt0
- Treatment
- Application of Ne0
- Outcome
- Zn, Fe and Cu concentrations in seed, shoot and roote0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Application of N significantly increased Zn, Fe and Cu concentrations in seed, shoot and root, while decreased that of Mn”
t0“rapeseed”
Claim · model-written summary
N application decreased Mn concentration in seed, shoot and root.
Not reportedComparator
Verbatim
e0“Application of N significantly increased Zn, Fe and Cu concentrations in seed, shoot and root, while decreased that of Mn”
t0“rapeseed”
Claim · model-written summary
Increasing Zn rates increased seed Fe concentration.
Not reportedComparator
Verbatim
e0“As Zn rates increased, concentration of Fe in seed and that of Zn in seed, shoot and root of both cultivars increased”
t0“rapeseed”
Claim · model-written summary
Increasing Zn rates increased Zn concentration in seed, shoot and root of both cultivars.
- Taxon
- rapeseedt0
- Treatment
- Zn ratese0
- Outcome
- Zn in seed, shoot and roote0
- Direction
- increasede0
- Qualifier
- both cultivarse0
Not reportedComparator
Verbatim
e0“As Zn rates increased, concentration of Fe in seed and that of Zn in seed, shoot and root of both cultivars increased”
t0“rapeseed”
Claim · model-written summary
Increasing Zn rates decreased Fe concentration in root and shoot.
Not reportedComparator
Verbatim
e0“Fe concentration in root and shoot and Mn and Cu concentrations in seed, root and shoot decreased”
t0“rapeseed”
e1“As Zn rates increased”
Claim · model-written summary
Increasing Zn rates decreased Mn and Cu concentrations in seed, root and shoot.
- Taxon
- rapeseedt0
- Treatment
- Zn ratese1
- Outcome
- Mn and Cu concentrations in seed, root and shoote0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“Fe concentration in root and shoot and Mn and Cu concentrations in seed, root and shoot decreased”
t0“rapeseed”
e1“As Zn rates increased”
Claim · model-written summary
Average micronutrient translocation from root to shoot ranked Mn > Zn > Cu > Fe.
Verbatim
e0“The average translocation of micronutrients from root to shoot was found to be in the order of Mn > Zn > Cu > Fe”
t0“rapeseed”
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See all 378 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.