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“yield decrease”

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Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Contributions of the flag leaf and fourth leaf estimated from the grain-yield decrease under shading agreed closely with 14CO2 estimates.

Taxon: Sorghum vulgareSorghum bicolort0
Outcome: percentage contributions to the graine0
Direction: agreed closelye0
Comparator: estimates obtained by using 14CO2e0

Verbatim

e0
“The percentage contributions to the grain by the flag leaf and fourth leaf, estimated from the decrease in grain yield when they were shaded, agreed closely with the estimates obtained by using 14CO2”
✓ located verbatim in the source · abstract, characters 801–1000

t0
“Sorghum vulgare”
✓ located verbatim in the source · title, characters 31–46

Title

Studies of grain production in Sorghum vulgare . II. Sites responsible for grain dry matter production during the post-anthesis period

KS Fischer; GL Wilson Australian Journal of Agricultural Research 1971. doi:10.1071/ar9710039

Other claims from this paper (5)

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

A seedling infection index permitted estimates of subsequent yield decrease.

Taxon: wheat, oats and barleyAvena sativa Hordeum vulgareTriticum aestivumt0
Outcome: estimatese0
Value: 1.4 × (SH+LA+LL)+18e0

Verbatim

e0
“Symptoms of seedling infection incorporated into an index of infection permit estimates to be made o eventual decreases in yield by applying the formula DY = 1.4 × (SH+LA+LL)+18.”
✓ located verbatim in the source · abstract, characters 681–859

t0
“varieties of wheat, oats and barley”
✓ located verbatim in the source · abstract, characters 43–78

Title

Some effects of barley yellow dwarf virus on spring and winter cereals in glasshouse trials

J. K. DOODSON; P. J. W. SAUNDERS Annals of Applied Biology 1970. doi:10.1111/j.1744-7348.1970.tb04593.x

Other claims from this paper (6)

Observation Severely affected cereal plants were stunted.
Intervention effect BYDV decreased cereal grain yields through fewer ears and grains and smaller grains.
Observation Many winter barley varieties were killed by BYDV infection.
Observation Winter wheat varieties were more tolerant than oat and barley varieties.
Association Individual seedling symptoms correlated with reductions in yield.
Method / resource Individual seedling symptoms did not accurately classify all varieties by infection susceptibility.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Cultivar yield changes under competition were generally similar in blends and paired rows.

Outcome: percentage yield increase or decreasee0
Direction: similare0
Comparator: blend and the paired‐rowse0

Verbatim

e0
“The percentage yield increase or decrease of each cultivar in competition generally was similar in the blend and the paired‐rows”
✓ located verbatim in the source · abstract, characters 1113–1241

Title

Evaluation of Intergenotypic Competition with a Paired‐Row Technique¹

W. R. Fehr Crop Science 1973. doi:10.2135/cropsci1973.0011183x001300050024x

Other claims from this paper (2)

Method / resource Paired rows identified good and poor competitors for every soybean cultivar pair tested.
Method / resource Rows 8 cm apart did not perfectly simulate competition in a 1:1 blend.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Calculated dry matter yield agreed acceptably with experiments when stand closure and growth decline dates were known.

Taxon: riceOryza sativat0
Outcome: total DM yieldse0
Qualifier: provided that the dates when a closed stand was obtained and when the growth rate started to decrease were knowne0
Comparator: experimental resultse0

Verbatim

e0
“Calculated total DM yields, grain yields and grain:straw ratios were in acceptable agreement with the experimental results, provided that the dates when a closed stand was obtained and when the growth rate started to decrease were known”
✓ located verbatim in the source · abstract, characters 351–587

t0
“rice”
✓ located verbatim in the source · title, characters 27–31

Title

A calculation of potential rice yields.

A. van Ittersum Netherlands Journal of Agricultural Science 1972. doi:10.18174/njas.v20i1.17294

Other claims from this paper (2)

Method / resource Calculated grain yields agreed acceptably with experiments under the stated timing condition.
Method / resource Calculated grain to straw ratios agreed acceptably with experiments under the stated timing condition.

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“yield decrease”

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