Abstract
SUMMARY Shading treatments of 50% of the incident radiation were applied to the semidwarf wheat cultivar Leones INTA before and after anthesis in two field experiments in Argentina in 1987 and 1988. The treatments reduced biological (above-ground dry matter) yield, grain yield and number of grains/m 2 . Number of grains/m 2 was closely and linearly correlated with ear dry weight at anthesis and with the photothermal quotient, calculated from 20 days before to 10 days after anthesis. Grain yield was sink limited, and the shading treatments reduced sink strength. The contribution of preanthesis assimilates to grain yield was smaller in the shaded crops than in the unshaded controls; in unshaded crops, almost 40% of grain yield was contributed by preanthesis assimilates whilst in preanthesis shaded crops this contribution was negligible. The proportion of preanthesis assimilates contributed to the grain was closely related to the decrease in stem dry weight during grain filling. The effects of shading on main stems and tillers were the same.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Shading reduced wheat biological yield.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Shading treatmentse1
- Outcome
- biological (above-ground dry matter) yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments reduced biological (above-ground dry matter) yield, grain yield and number of grains/m 2 .”
t0“wheat”
e1“Shading treatments of 50% of the incident radiation”
Claim · model-written summary
Shading reduced wheat grain yield.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Shading treatmentse1
- Outcome
- grain yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments reduced biological (above-ground dry matter) yield, grain yield and number of grains/m 2 .”
t0“wheat”
e1“Shading treatments of 50% of the incident radiation”
Claim · model-written summary
Shading reduced the number of wheat grains per area.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Shading treatmentse1
- Outcome
- number of grains/m 2e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments reduced biological (above-ground dry matter) yield, grain yield and number of grains/m 2 .”
t0“wheat”
e1“Shading treatments of 50% of the incident radiation”
Claim · model-written summary
Wheat grain number was closely and linearly correlated with ear dry weight at anthesis.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- eare0
- Outcome
- Number of grains/m 2e0
- Qualifier
- ear dry weight at anthesise0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Number of grains/m 2 was closely and linearly correlated with ear dry weight at anthesis”
t0“wheat”
Claim · model-written summary
Wheat grain number was closely and linearly correlated with the photothermal quotient.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- photothermal quotiente0
- Outcome
- Number of grains/m 2e0
- Qualifier
- 20 days before to 10 days after anthesise0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Number of grains/m 2 was closely and linearly correlated with ear dry weight at anthesis and with the photothermal quotient, calculated from 20 days before to 10 days after anthesis”
t0“wheat”
Claim · model-written summary
Wheat grain yield was sink limited.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- Grain yield was sink limitede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield was sink limited”
t0“wheat”
Claim · model-written summary
Shading reduced wheat sink strength.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- shading treatmentse0
- Outcome
- sink strengthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the shading treatments reduced sink strength”
t0“wheat”
Claim · model-written summary
Shaded wheat crops had a smaller contribution of preanthesis assimilates to grain yield than unshaded controls.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- shaded cropse0
- Outcome
- contribution of preanthesis assimilates to grain yielde0
- Direction
- smallere0
- Comparator
- unshaded controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The contribution of preanthesis assimilates to grain yield was smaller in the shaded crops than in the unshaded controls”
t0“wheat”
Claim · model-written summary
Almost 40% of unshaded wheat grain yield came from preanthesis assimilates.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- grain yield was contributed by preanthesis assimilatese0
- Value
- almost 40%e0
- Qualifier
- unshaded cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in unshaded crops, almost 40% of grain yield was contributed by preanthesis assimilates”
t0“wheat”
Claim · model-written summary
Preanthesis assimilates contributed negligibly to grain yield in preanthesis shaded wheat.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- contribution was negligiblee0
- Qualifier
- preanthesis shaded cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in preanthesis shaded crops this contribution was negligible”
t0“wheat”
Claim · model-written summary
The proportion of preanthesis assimilates contributed to wheat grain was closely related to stem dry weight loss during grain filling.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- steme0
- Outcome
- proportion of preanthesis assimilates contributed to the graine0
- Qualifier
- decrease in stem dry weight during grain fillinge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The proportion of preanthesis assimilates contributed to the grain was closely related to the decrease in stem dry weight during grain filling”
t0“wheat”
Claim · model-written summary
Shading affected wheat main stems and tillers similarly.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- main stems and tillerse0
- Outcome
- effects of shading on main stems and tillers were the samee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of shading on main stems and tillers were the same”
t0“wheat”
The same questions in other papers
shade · yield · Triticum aestivum (wheat)Positive and negative results
59 papers in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- negative
65 papers more in this group
See all 69 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.