Abstract
Abstract Zinc deficiency is a common nutritional problem in calcareous agricultural soils, resulting in reduced crop yield and performance. The effects of zinc sulphate (0 and 40 kg/ha) on seed yield, its components and seed element contents of 21 wheat cultivars were investigated. Zinc sulphate application increased plant height, leaf area index (LAI), flag leaf area, biomass, spike length, number of seeds per spike, seed weight and harvest index (HI). The increase in HI indicates the greater effect of zinc on seed production compared to plant biomass. In most of the cultivars, zinc sulphate application decreased the content of phosphorus and nitrogen in seeds and increased the content of iron and potassium. The cultivars showed significant differences in all the traits measured, indicating the existence of genetic diversity in the cultivars studied. In the second year, which was hotter and drier than the first year, zinc sulphate application reduced the damage caused by drought and heat stress and improved seed yield and quality. The regression fit showed that newer cultivars had lower yields in unfertilized conditions compared to old cultivars and showed their superiority in zinc fertilized conditions. It seems that the newer varieties require more fertilizer because they have been bred on fertile soils.
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Claims 10
Claim · model-written summary
Zinc sulphate application increased plant height, leaf area index, and flag leaf area.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Zinc sulphate applicatione1
- Outcome
- plant height, leaf area index (LAI), flag leaf areae1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e1“Zinc sulphate application increased plant height, leaf area index (LAI), flag leaf area, biomass, spike length, number of seeds per spike, seed weight and harvest index (HI)”
Claim · model-written summary
Zinc sulphate application increased biomass, spike length and number of seeds per spike.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Zinc sulphate applicatione1
- Outcome
- biomass, spike length, number of seeds per spikee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e1“Zinc sulphate application increased plant height, leaf area index (LAI), flag leaf area, biomass, spike length, number of seeds per spike, seed weight and harvest index (HI)”
Claim · model-written summary
Zinc sulphate application increased seed weight and harvest index.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Zinc sulphate applicatione1
- Outcome
- seed weight and harvest index (HI)e1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e1“Zinc sulphate application increased plant height, leaf area index (LAI), flag leaf area, biomass, spike length, number of seeds per spike, seed weight and harvest index (HI)”
Claim · model-written summary
In most cultivars zinc sulphate application decreased the phosphorus and nitrogen content of seeds.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- zinc sulphate applicatione2
- Outcome
- content of phosphorus and nitrogen in seedse2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e2“In most of the cultivars, zinc sulphate application decreased the content of phosphorus and nitrogen in seeds”
Claim · model-written summary
In most cultivars zinc sulphate application increased the iron and potassium content of seeds.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- zinc sulphate applicatione2
- Outcome
- content of iron and potassiume3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e2“In most of the cultivars, zinc sulphate application decreased the content of phosphorus and nitrogen in seeds”
e3“increased the content of iron and potassium”
Claim · model-written summary
In the hotter, drier second year zinc sulphate application reduced the damage caused by drought and heat stress.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- zinc sulphate applicatione4
- Outcome
- damage caused by drought and heat stresse4
- Direction
- reducede4
- Qualifier
- In the second yeare4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e4“In the second year, which was hotter and drier than the first year, zinc sulphate application reduced the damage caused by drought and heat stress and improved seed yield and quality”
Claim · model-written summary
In the second year zinc sulphate application improved seed yield and quality.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- zinc sulphate applicatione4
- Outcome
- seed yield and qualitye4
- Direction
- improvede4
- Qualifier
- In the second yeare4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e4“In the second year, which was hotter and drier than the first year, zinc sulphate application reduced the damage caused by drought and heat stress and improved seed yield and quality”
Claim · model-written summary
Newer cultivars had lower yields than old cultivars in unfertilized conditions.
- Taxon
- wheatTriticum aestivumt0
- Material
- newer cultivarse5
- Outcome
- yieldse5
- Direction
- lowere5
- Qualifier
- in unfertilized conditionse5
- Comparator
- old cultivarse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e5“newer cultivars had lower yields in unfertilized conditions compared to old cultivars and showed their superiority in zinc fertilized conditions”
Claim · model-written summary
Newer cultivars were superior to old cultivars in zinc fertilized conditions.
- Taxon
- wheatTriticum aestivumt0
- Material
- newer cultivarse5
- Outcome
- superioritye5
- Qualifier
- in zinc fertilized conditionse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e5“newer cultivars had lower yields in unfertilized conditions compared to old cultivars and showed their superiority in zinc fertilized conditions”
Claim · model-written summary
The cultivars differed significantly in all traits measured, indicating genetic diversity.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- all the traits measurede6
- Direction
- significant differencese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e6“The cultivars showed significant differences in all the traits measured”
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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.