Abstract
The yield forming response of maize cultivar to zinc (Zn) application depends on its timing. This hypothesis was validated in 2007, 2008, 2009 and 2010 growing seasons. The zinc treatments as the first factor were: NPK; NPK + Zn applied before sowing; NPK + Zn applied to maize at the stage of 4th leaf. The second factor was the maize type: stay-green (modern cultivars) - Paroli, Veritis, Anamur; classical (old cultivars) - Inagua, Kirola. The grain yield of modern cultivars responded the best to zinc applied before sowing, whereas the old ones, when applied to foliage. The yield of the stay-green maize depended upon the number of kernels per row, whereas the classical one on all yield structural components. The zinc management in the modern cultivars should be oriented towards maximization of the number of kernels per row, whereas in the old one on its optimization with the simultaneous kernel weight increase. The positive impact of zinc application before sowing on dry matter translocation from vegetative tissues to growing kernels underlines its practical usefulness, especially in areas with frequent water shortage during maize growth.
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Claims 8
Claim · model-written summary
Modern maize cultivars responded best to zinc applied before sowing compared with NPK alone
- Material
- modern cultivarse1
- Treatment
- zinc applied before sowinge1
- Outcome
- grain yielde1
- Direction
- responded the beste1
- Comparator
- NPKe0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The zinc treatments as the first factor were: NPK; NPK + Zn applied before sowing; NPK + Zn applied to maize at the stage of 4th leaf”
e1“The grain yield of modern cultivars responded the best to zinc applied before sowing, whereas the old ones, when applied to foliage”
Claim · model-written summary
Old maize cultivars responded best to foliar zinc at the 4th leaf stage compared with NPK alone
- Material
- old onese1
- Organ / stage
- 4th leafe0
- Treatment
- applied to foliagee1
- Outcome
- grain yielde1
- Direction
- responded the beste1
- Comparator
- NPKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The zinc treatments as the first factor were: NPK; NPK + Zn applied before sowing; NPK + Zn applied to maize at the stage of 4th leaf”
e1“The grain yield of modern cultivars responded the best to zinc applied before sowing, whereas the old ones, when applied to foliage”
Claim · model-written summary
In stay-green maize, grain yield depended on the number of kernels per row
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The zinc treatments as the first factor were: NPK; NPK + Zn applied before sowing; NPK + Zn applied to maize at the stage of 4th leaf”
e2“The yield of the stay-green maize depended upon the number of kernels per row, whereas the classical one on all yield structural components”
Claim · model-written summary
In classical maize, grain yield depended on all yield structural components
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The zinc treatments as the first factor were: NPK; NPK + Zn applied before sowing; NPK + Zn applied to maize at the stage of 4th leaf”
e2“The yield of the stay-green maize depended upon the number of kernels per row, whereas the classical one on all yield structural components”
Claim · model-written summary
Zinc management in modern cultivars should maximise the number of kernels per row
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The zinc treatments as the first factor were: NPK; NPK + Zn applied before sowing; NPK + Zn applied to maize at the stage of 4th leaf”
e3“The zinc management in the modern cultivars should be oriented towards maximization of the number of kernels per row, whereas in the old one on its optimization with the simultaneous kernel weight increase”
Claim · model-written summary
Zinc management in old cultivars should optimise yield with a simultaneous kernel weight increase
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The zinc treatments as the first factor were: NPK; NPK + Zn applied before sowing; NPK + Zn applied to maize at the stage of 4th leaf”
e3“The zinc management in the modern cultivars should be oriented towards maximization of the number of kernels per row, whereas in the old one on its optimization with the simultaneous kernel weight increase”
Claim · model-written summary
Zinc applied before sowing had a positive effect on dry matter translocation from vegetative tissues to kernels
- Treatment
- zinc application before sowinge4
- Outcome
- dry matter translocation from vegetative tissues to growing kernelse4
- Direction
- positive impacte4
- Qualifier
- especially in areas with frequent water shortagee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The positive impact of zinc application before sowing on dry matter translocation from vegetative tissues to growing kernels underlines its practical usefulness, especially in areas with frequent water shortage during maize growth”
Claim · model-written summary
The yield-forming response of maize to zinc application depends on its timing
- Treatment
- zinc (Zn) applicatione5
- Outcome
- yield forming responsee5
- Setting
- 2007, 2008, 2009 and 2010 growing seasonse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The yield forming response of maize cultivar to zinc (Zn) application depends on its timing. This hypothesis was validated in 2007, 2008, 2009 and 2010 growing seasons”
The same questions in other papers
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390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative
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See all 441 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.