Abstract
Four wheat genotypes with varying vernalisation and daylength requirements were sown in the field on 5 occasions between early April and late June at Wagga Wagga and Temora, New South Wales, in 1974 and 1975. The period between sowing and heading decreased from 1068-1 324 degree-days (base temperature = 4¦C) for crops sown in April to 660-841 degree-days for crops sown in late May. The genotype with the largest vernalisation response in this study (WW33G) produced the highest yields when crops were sown in early April. The cultivar Oxley, which has a small vernalisation response, produced the highest yields at almost all other sowing times. Shoot nitrogen (N) and phosphorus (P) uptake did not vary consistently in relation to the time of sowing. Grain protein concentration was higher at 3 of 4 sites with early sowing and grain P concentration was always significantly higher with early sowing dates. Higher concentrations of P were associated with higher concentrations of phytate. The concentrations of N and P were negatively correlated with yield and harvest index.
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Claims 8
Claim · model-written summary
Time from sowing to heading declined from April to late May sowing.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- crops sown in late Maye0
- Outcome
- period between sowing and headinge0
- Direction
- decreasede0
- Value
- 660-841 degree-dayse0
- Qualifier
- 1068-1 324 degree-dayse0
- Comparator
- crops sown in Aprile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The period between sowing and heading decreased from 1068-1 324 degree-days (base temperature = 4¦C) for crops sown in April to 660-841 degree-days for crops sown in late May”
t0“wheats”
Claim · model-written summary
WW33G had the highest yields with early April sowing.
- Taxon
- wheatTriticum aestivumt0
- Material
- WW33Ge0
- Treatment
- crops were sown in early Aprile0
- Outcome
- yieldse0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The genotype with the largest vernalisation response in this study (WW33G) produced the highest yields when crops were sown in early April”
t0“wheats”
Claim · model-written summary
Oxley yielded highest at almost all other sowing times.
- Taxon
- wheatTriticum aestivumt0
- Material
- Oxleye0
- Outcome
- yieldse0
- Direction
- higheste0
- Qualifier
- almost all other sowing timese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivar Oxley, which has a small vernalisation response, produced the highest yields at almost all other sowing times”
t0“wheats”
Claim · model-written summary
Shoot nitrogen and phosphorus uptake showed no consistent relation to sowing time.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- time of sowinge0
- Outcome
- Shoot nitrogen (N) and phosphorus (P) uptakee0
- Direction
- did not vary consistentlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot nitrogen (N) and phosphorus (P) uptake did not vary consistently in relation to the time of sowing”
t0“wheats”
Claim · model-written summary
Early sowing increased grain protein concentration at three of four sites.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- early sowinge0
- Outcome
- Grain protein concentratione0
- Direction
- highere0
- Qualifier
- 3 of 4 sitese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain protein concentration was higher at 3 of 4 sites with early sowing”
t0“wheats”
Claim · model-written summary
Early sowing significantly increased grain phosphorus concentration.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- early sowing datese0
- Outcome
- grain P concentratione0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain P concentration was always significantly higher with early sowing dates”
t0“wheats”
Claim · model-written summary
Higher phosphorus concentration was associated with higher phytate concentration.
- Taxon
- wheatTriticum aestivumt0
- Compound
- Pe0
- Outcome
- concentrations of phytatee0
- Direction
- Highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher concentrations of P were associated with higher concentrations of phytate”
t0“wheats”
Claim · model-written summary
Nitrogen and phosphorus concentrations correlated negatively with yield and harvest index.
- Taxon
- wheatTriticum aestivumt0
- Compound
- N and Pe0
- Outcome
- yield and harvest indexe0
- Direction
- negatively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentrations of N and P were negatively correlated with yield and harvest index”
t0“wheats”
The same questions in other papers
sowing time · nutrient: content · Triticum aestivum (wheat)Positive and negative results
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- no effect
- negative
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See all 24 papers →sowing time · quality: protein · Triticum aestivum (wheat)Positive and negative results
30 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
39 papers more in this group
See all 43 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.