Abstract
Grain from sowing time experiments at 1 site in 1984 and 2 sites in 1986 and 1987 in northwestern Victoria were tested for several grain and flour characters. The tests included grain protein percentage, sodium dodecyl sulfate (SDS) sedimentation volume, particle size index, milling yield, test weight and Pelshenke wholemeal fermentation time, although not all tests were carried out in all years at both sites. The findings are reported without analysis of the underlying processes involved. The effect of sowing time on grain protein percentage was variable; at Dooen in 1984 there was a slight decrease, at Dooen and Walpeup in 1986 there was an increase but there was no change at Dooen in 1987, as sowing time was delayed. Sowing time had a significant effect on SDS at Dooen in 1984 and Dooen and Walpeup in 1986. There were no marked trends at Dooen in 1984, but significant differences between individual sowing times, and in 1986 there was an inconsistent increase as sowing time was delayed. At Walpeup in 1986 there was a substantial increase in values as sowing time was delayed. Partial correlation coefficients, however, indicated that at Dooen in both years and Walpeup in 1986, variation for SDS was due almost entirely to differences in grain protein percentage, although at Walpeup in 1986 there was a slight additional effect of sowing time. Particle size index was significantly affected by sowing time at both sites in 1986; at Dooen there was a decrease as sowing time was delayed and then an increase for the last sowing time, and at Walpeup there was an increase as sowing time was delayed. Although some effects of sowing time on milling yield and test weight were statistically significant, only one had commercial significance-milling yield at Walpeup in 1986. Pelshenke time was affected by sowing time at Dooen in 1984 and Walpeup in 1986, but there were no obvious trends. Sowing time x cultivar interactions have implications for quality testing of wheat crossbreds. Grain growers can be reassured that sowing crops over an extended period appears to have little or no detrimental effect on grain quality with respect to bread baking properties. In some seasons, however, there may be substantial increases in grain protein percentage in later sown crops, although this would generally be associated with lower yields.
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Claims 12
Claim · model-written summary
Delayed sowing slightly decreased grain protein at Dooen in 1984.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- sowing timee1
- Outcome
- grain protein percentagee1
- Direction
- decreasee0
- Qualifier
- 1984e0
- Setting
- Dooene0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at Dooen in 1984 there was a slight decrease”
e1“The effect of sowing time on grain protein percentage was variable”
t0“wheat”
Claim · model-written summary
Delayed sowing increased grain protein at Dooen and Walpeup in 1986.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sowing timee2
- Outcome
- grain protein percentagee1
- Direction
- increasee0
- Qualifier
- 1986e0
- Setting
- Dooen and Walpeupe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at Dooen and Walpeup in 1986 there was an increase”
e1“The effect of sowing time on grain protein percentage was variable”
e2“there was an increase but there was no change at Dooen in 1987, as sowing time was delayed.”
t0“wheat”
Claim · model-written summary
Delayed sowing did not change grain protein at Dooen in 1987.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sowing timee0
- Outcome
- grain protein percentagee1
- Direction
- no changee0
- Qualifier
- 1987e0
- Setting
- Dooene0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no change at Dooen in 1987, as sowing time was delayed.”
e1“The effect of sowing time on grain protein percentage was variable”
t0“wheat”
Claim · model-written summary
Sowing time significantly affected SDS at Dooen in 1984 and at both sites in 1986.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Sowing timee0
- Outcome
- SDSe0
- Setting
- Dooene0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sowing time had a significant effect on SDS at Dooen in 1984 and Dooen and Walpeup in 1986.”
t0“wheat”
Claim · model-written summary
SDS showed an inconsistent increase with delayed sowing at Dooen in 1986.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 1986 there was an inconsistent increase as sowing time was delayed.”
e1“SDS at Dooen”
t0“wheat”
Claim · model-written summary
SDS increased substantially with delayed sowing at Walpeup in 1986.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At Walpeup in 1986 there was a substantial increase in values as sowing time was delayed.”
e1“Sowing time had a significant effect on SDS at Dooen”
t0“wheat”
Claim · model-written summary
Variation in SDS was almost entirely attributable to grain protein differences at both sites.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- SDSe0
- Comparator
- grain protein percentagee0
- Setting
- Dooene1
Not reportedCompoundDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“variation for SDS was due almost entirely to differences in grain protein percentage”
e1“at Dooen in both years and Walpeup in 1986”
t0“wheat”
Claim · model-written summary
Particle size index fell and then rose at the last delayed sowing time at Dooen in 1986.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sowing timee0
- Outcome
- Particle size indexe0
- Direction
- decrease as sowing time was delayed and then an increasee0
- Setting
- Dooene0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Particle size index was significantly affected by sowing time at both sites in 1986; at Dooen there was a decrease as sowing time was delayed and then an increase for the last sowing time”
t0“wheat”
Claim · model-written summary
Particle size index increased with delayed sowing at Walpeup in 1986.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sowing timee0
- Outcome
- Particle size indexe1
- Direction
- increasee0
- Setting
- Walpeupe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at Walpeup there was an increase as sowing time was delayed.”
e1“Particle size index was significantly affected by sowing time”
t0“wheat”
Claim · model-written summary
Sowing time effects on milling yield at Walpeup in 1986 were commercially significant.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sowing timee1
- Outcome
- milling yielde0
- Setting
- Walpeupe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only one had commercial significance-milling yield at Walpeup in 1986.”
e1“effects of sowing time on milling yield and test weight were statistically significant”
t0“wheat”
Claim · model-written summary
Pelshenke time varied with sowing time without an obvious trend at Dooen in 1984 and Walpeup in 1986.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- sowing timee0
- Outcome
- Pelshenke timee0
- Direction
- affectede0
- Setting
- Dooene0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pelshenke time was affected by sowing time at Dooen in 1984 and Walpeup in 1986, but there were no obvious trends.”
t0“wheat”
Claim · model-written summary
The authors conclude that extended sowing periods appear to cause little or no detriment to bread-baking grain quality.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- grain quality with respect to bread baking propertiese0
- Qualifier
- extended periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sowing crops over an extended period appears to have little or no detrimental effect on grain quality with respect to bread baking properties.”
t0“wheat”
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See all 113 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.