Abstract
Grain samples from a factorial (5 sulfur x 3 nitrogen treatments) field experiment with Olympic wheat, which showed yield responses to both factors, were analysed for total sulfur and nitrogen. Sulfur application increased the grain sulfur concentration more with high than with low nitrogen treatment, but had only small effects on the nitrogen concentration in grain. Nitrogen application increased the grain sulfur concentration at high but not low sulfur and increased grain nitrogen concentration at all sulfur treatment levels. The critical grain sulfur value for yield was 0.12% in treatments adequately supplied with nitrogen, but plots with low nitrogen (sulfur-unresponsive) also had grain sulfur values below 0.12 %. Grain from sulfur-responsive plants could be distinguished from grain from unresponsive plants because the former had less than 0.12% sulfur and nitrogen/sulfur ratios wider than 17/1. Results from a glasshouse experiment with three cultivars were consistent with this. The findings suggest that seed analysis may be a useful method for diagnosis of the sulfur status of cereal crops.
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Claims 11
Claim · model-written summary
Wheat yield responded to both sulfur and nitrogen.
- Taxon
- wheat
Triticum aestivume0 - Material
- Olympice0
- Outcome
- yield responsese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Olympic wheat, which showed yield responses to both factors”
Claim · model-written summary
Sulfur increased grain sulfur concentration more at high than low nitrogen.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Sulfur applicatione0
- Outcome
- grain sulfur concentratione0
- Direction
- increasede0
- Qualifier
- highe0
- Comparator
- low nitrogen treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sulfur application increased the grain sulfur concentration more with high than with low nitrogen treatment”
t0“wheat”
Claim · model-written summary
Sulfur had small effects on grain nitrogen concentration.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Sulfure0
- Outcome
- nitrogen concentration in graine0
- Qualifier
- small effectse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sulfur application increased the grain sulfur concentration more with high than with low nitrogen treatment, but had only small effects on the nitrogen concentration in grain.”
t0“wheat”
Claim · model-written summary
Nitrogen increased grain sulfur concentration at high sulfur, but not low sulfur.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Nitrogen applicatione0
- Outcome
- grain sulfur concentratione0
- Direction
- increasede0
- Qualifier
- highe0
- Comparator
- low sulfure0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen application increased the grain sulfur concentration at high but not low sulfur”
t0“wheat”
Claim · model-written summary
Nitrogen increased grain nitrogen concentration at all sulfur levels.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Nitrogen applicatione0
- Outcome
- grain nitrogen concentratione0
- Direction
- increasede0
- Qualifier
- all sulfur treatment levelse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen application increased the grain sulfur concentration at high but not low sulfur and increased grain nitrogen concentration at all sulfur treatment levels.”
t0“wheat”
Claim · model-written summary
Critical grain sulfur for yield was 0.12% with adequate nitrogen.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- critical grain sulfur value for yielde0
- Value
- 0.12%e0
- Qualifier
- adequately supplied with nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The critical grain sulfur value for yield was 0.12% in treatments adequately supplied with nitrogen”
t0“wheat”
Claim · model-written summary
Low-nitrogen sulfur-unresponsive plots also had grain sulfur below 0.12%.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- grain sulfur valuese0
- Direction
- belowe0
- Value
- 0.12 %e0
- Qualifier
- low nitrogen (sulfur-unresponsive)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plots with low nitrogen (sulfur-unresponsive) also had grain sulfur values below 0.12 %”
t0“wheat”
Claim · model-written summary
Sulfur-responsive wheat had grain sulfur under 0.12%.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- sulfure0
- Direction
- less thane0
- Value
- 0.12%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the former had less than 0.12% sulfur and nitrogen/sulfur ratios wider than 17/1”
t0“wheat”
Claim · model-written summary
Sulfur-responsive wheat had grain N/S ratios wider than 17/1.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- nitrogen/sulfur ratiose0
- Direction
- wider thane0
- Value
- 17/1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the former had less than 0.12% sulfur and nitrogen/sulfur ratios wider than 17/1”
t0“wheat”
Claim · model-written summary
Glasshouse results with three cultivars were consistent with field results.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- Resultse0
- Direction
- consistente0
- Setting
- glasshousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results from a glasshouse experiment with three cultivars were consistent with this.”
t0“wheat”
Claim · model-written summary
Authors suggest seed analysis for cereal sulfur-status diagnosis.
Verbatim
e0“seed analysis may be a useful method for diagnosis of the sulfur status of cereal crops”
The same questions in other papers
sulfur atom · nutrient: content · Triticum aestivum (wheat)Results differ
50 papers in the same direction as this paper · 15 in the opposite direction
- no effect
- no effect
- positive
62 papers more in this group
See all 66 papers →nitrogen · nutrient: content · Triticum aestivum (wheat)Positive and negative results
409 papers in the same direction as this paper · 64 in the opposite direction · 5 reporting no difference from an alternative
- no effect
- negative
- no effect
475 papers more in this group
See all 479 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.