Search claims · PlantClaims

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The yield decrease under continuous direct sowing occurred only in soils low in available phosphorus.

Taxon: riceOryza sativat0
Treatment: continuous direct sowing culturee1
Outcome: decrease of yielde1
Direction: decreasee1
Qualifier: only in such soils that were low in available phosphorus contente1

Verbatim

t0
“Rice Yield Decrease Resulting from Continual Direct Sowing Culture”
✓ located verbatim in the source · title, characters 25–91

e1
“the decrease of yield in the continuous direct sowing culture caused by the shortage of phosphorus absorption could be recognized only in such soils that were low in available phosphorus content”
✓ located verbatim in the source · abstract, characters 2078–2272

Title

Studies on the Causes of Rice Yield Decrease Resulting from Continual Direct Sowing Culture : II. In relation to phosphorus nutrition

Yoshimasa UEMURA; AKIRA MIYASAKA Japanese Journal of Crop Science 1973. doi:10.1626/jcs.42.116

Other claims from this paper (9)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Upright leaves tended to decrease grain yield below LAI 3 or 4.

Taxon: corn ( Zea mays L.)Zea mayse1
Treatment: upright leavese0
Outcome: grain yielde0
Direction: decreasee0
Qualifier: low LAI (below 3 or 4)e0

Not reportedComparator

Verbatim

e0
“At low LAI (below 3 or 4), upright leaves tended to decrease grain yield”
✓ located verbatim in the source · abstract, characters 561–633

e1
“corn ( Zea mays L.)”
✓ located verbatim in the source · abstract, characters 277–296

Title

Leaf Angle, Leaf Area, and Corn (Zea mays L.) Yield¹

S. R. Winter; A. J. Ohlrogge Agronomy Journal 1973. doi:10.2134/agronj1973.00021962006500030013x

Other claims from this paper (7)

Intervention effect Upright leaves tended to increase grain yield at LAI 5 and above.
Observation Normal canopy grain yield reached its optimum at a lower LAI than upright canopy yield.
Intervention effect At optimum LAI, upright leaves outyielded normal leaves by 0.4% in 1968.
Intervention effect At optimum LAI, upright leaves outyielded normal leaves by 5.7% in 1969.
Intervention effect At optimum LAI, upright leaves outyielded normal leaves by 5.8% in 1970.
Recommendation The authors judged upright canopies not beneficial under current Indiana production conditions.
Recommendation The authors proposed that upright leaves might raise yield if future varieties or management support higher LAI.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Aging for up to 48 d was followed by a gradual decrease in sorghum yield.

Taxon: sorghumSorghumt0
Treatment: aging of up to 48 de1
Outcome: yielde1
Direction: decreasee1

Not reportedComparator

Verbatim

e1
“this was followed by a gradual decrease in yield following aging of up to 48 d”
✓ located verbatim in the source · abstract, characters 320–398

t0
“Accelerated Aging of Sorghum Seeds”
✓ located verbatim in the source · title, characters 14–48

Title

The Effect of Accelerated Aging of Sorghum Seeds on Seedling Vigour

HAYA GELMOND; I. LURIA; L. W. WOODSTOCK; et al. Journal of Experimental Botany 1978. doi:10.1093/jxb/29.2.489

Other claims from this paper (5)

Intervention effect Aging for 6 d increased sorghum yield by 20% (seed invigoration).
Observation All sorghum seed lots showed 88–92% germination or emergence capacity in laboratory tests.
Association Seed vigour correlated poorly with laboratory germination or emergence capacity.
Association Seed vigour correlated well with laboratory rates of germination and root emergence.
Association Seed vigour correlated well with emergence rate in the field.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Fruit yield tended to decrease as budding height increased.

Taxon: Citrus sinensisCitrus sinensise0
Treatment: budding heighte2
Outcome: Fruit yielde1
Direction: decreasee2
Qualifier: tendede2

Verbatim

e0
“orange ( Citrus sinensis (L.) Osbeck)”
✓ located verbatim in the source · abstract, characters 191–228

e1
“Fruit yield was highest from trees budded at 15 cm height above the ground”
✓ located verbatim in the source · abstract, characters 285–359

e2
“tended to decrease as budding height increased”
✓ located verbatim in the source · abstract, characters 364–410

Title

Influence of Budding Height on Performance of ‘Valencia’ Sweet Orange on Two Rootstocks1

C. K. Labanauskas; W. P. Bitters; C. D. McCarty HortScience 1976. doi:10.21273/hortsci.11.2.117

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Seed yield per plant did not apparently decrease in the high seed-weight line.

Taxon: PhalarisPhalarist0
Outcome: seed yield per plante0
Direction: no apparent decreasee0
Comparator: control populatione0

Verbatim

e0
“there was no apparent decrease in seed yield per plant in this line, compared with the control population”
✓ located verbatim in the source · abstract, characters 1346–1451

t0
“Phalaris”
✓ located verbatim in the source · title, characters 62–70

Title

Responses to selection for seed weight and seedling vigour in Phalaris

RJ Clements; BDH Latter Australian Journal of Agricultural Research 1974. doi:10.1071/ar9740033

Other claims from this paper (19)

Observation Selection responses were significant for seed weight, seedling weight, leaf size, and leaf appearance rate.
Observation Responses were linear in both selection directions.
Observation Realized heritability of seed weight was 0.35.
Observation Realized heritability of seedling weight was 0.12.
Observation Realized heritability of leaf size was 0.61.
Observation Realized heritability of leaf appearance rate was 0.38.
Association Leaf size correlated positively with seedling weight.
Association Leaf size correlated negatively with leaf appearance rate.
Observation Selecting for high seed weight increased seedling weight and leaf size.
Observation Selection for heavy seedlings or large leaves did not significantly increase seed weight.
Observation Selecting for light seedlings or small leaves reduced seed weight.
Observation Hybrid seedlings were nearly as heavy as those in the high seedling-weight line.
Observation Hybrid seedlings were significantly heavier than the mean of parent lines.
Observation Evidence suggested directional dominance, especially for leaf size.
Observation High seed-weight plants matured earlier and had fewer heads.
Observation High seed-weight plants had heavier seeds and more seeds per head.
Observation Spikelet and leaf-sheath areas were greater in the high seed-weight line.
Observation Flag and penultimate leaf areas were unchanged in the high seed-weight line.
Recommendation The authors conclude that selecting large leaves is relatively efficient for increasing seedling weight but reduces leaf appearance rate.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Use of a herbicide allowed a lower seeding rate with no decrease in sericea stand or forage yield.

Taxon: Sericea lespedezaLespedeza cuneatat0
Treatment: Use of a herbicidee3
Outcome: sericea stand or forage yielde3
Direction: no decreasee3

Not reportedComparator

Verbatim

t0
“Establishment of Sericea Lespedeza”
✓ located verbatim in the source · title, characters 0–34

e3
“Use of a herbicide permitted a reduction in seeding rate with no decrease in sericea stand or forage yield”
✓ located verbatim in the source · abstract, characters 308–414

Title

Establishment of Sericea Lespedeza

C. S. Hoveland; G. A. Buchanan; E. D. Donnelly Weed Science 1971. doi:10.1017/s0043174500048189

Other claims from this paper (6)

Intervention effect Preplant vernolate reduced grass and broadleaf weed populations in sericea lespedeza.
Intervention effect Sericea was unaffected by preplant vernolate.
Intervention effect The herbicide treatment allowed a hay cutting in the establishment year with only a minor effect on next-year production.
Intervention effect The beneficial effect of vernolate on sericea yield continued into the second year.
Intervention effect Sericea seeding rate did not affect weed competition or forage yield.
Recommendation A seeding rate of 11 kg/ha with 3.4 kg/ha vernolate is the most practical treatment.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

No yield decrease was found in alluvial paddy soil even under continuous direct sowing culture.

Taxon: riceOryza sativat0
Treatment: continuous direct sowing culturee1
Outcome: such decreasee1
Qualifier: could not be founde1
Setting: alluvial paddy soile0

Verbatim

t0
“Rice Yield Decrease Resulting from Continual Direct Sowing Culture”
✓ located verbatim in the source · title, characters 25–91

e1
“such decrease could not be found, even under continuous direct sowing culture”
✓ located verbatim in the source · abstract, characters 2521–2598

e0
“in alluvial paddy soil which was high in available phosphorus”
✓ located verbatim in the source · abstract, characters 2397–2458

Title

Studies on the Causes of Rice Yield Decrease Resulting from Continual Direct Sowing Culture : II. In relation to phosphorus nutrition

Yoshimasa UEMURA; AKIRA MIYASAKA Japanese Journal of Crop Science 1973. doi:10.1626/jcs.42.116

Other claims from this paper (9)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Deep plowing tended to decrease root yield of sudangrass.

Taxon: sudangrassSorghum ×drummondiie1
Treatment: Deep plowinge1
Outcome: root yieldse1
Direction: decreasee1

Not reportedComparator

Verbatim

e1
“Deep plowing tended to decrease root yields of sudangrass ( Sorghum sudanense ), sugarbeets, ( Beta vulgaris ), and soybeans ( Glycine max ) but had little effect on those of cabbage ( Brassica oleracea var. ‘capitata’)”
✓ located verbatim in the source · abstract, characters 441–660

Title

Profile Modification and Root Yield, Distribution, and Activity¹

Harold V. Eck; Ronald G. Davis Agronomy Journal 1971. doi:10.2134/agronj1971.00021962006300060034x

Other claims from this paper (11)

Intervention effect Deep plowing tended to decrease root yield of sugarbeets.
Intervention effect Deep plowing tended to decrease root yield of soybeans.
Intervention effect Deep plowing had little effect on root yield of cabbage.
Association Root yields of plants decreased with depth on soil rototilled to 20 cm or moldboard plowed to 90 cm.
Intervention effect Application of 22,400 kg/ha of Na2CO3 at the 90 cm plow depth made roots of plants tend to be evenly distributed throughout the 90 cm profile.
Intervention effect Profile modification enhanced root activity of plants, as measured by top-root ratios.
Method / resource Top-root ratios are better indicators of root activity than top or root yields alone.
Observation Sr 85 uptake showed that roots in the 70 to 90 cm zone were as active as roots in the 0 to 20 cm zone.
Intervention effect Na2CO3 tended to increase root weights in its zone of application.
Intervention effect Na2CO3 reduced radiostrontium uptake by about eightfold compared with similarly placed radiostrontium without Na2CO3.
Association Na2CO3 indicates a decrease in root activity.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Deep plowing tended to decrease root yield of sugarbeets.

Taxon: sugarbeetsBeta vulgaris subsp. vulgarise1
Treatment: Deep plowinge1
Outcome: root yieldse1
Direction: decreasee1

Not reportedComparator

Verbatim

e1
“Deep plowing tended to decrease root yields of sudangrass ( Sorghum sudanense ), sugarbeets, ( Beta vulgaris ), and soybeans ( Glycine max ) but had little effect on those of cabbage ( Brassica oleracea var. ‘capitata’)”
✓ located verbatim in the source · abstract, characters 441–660

Title

Profile Modification and Root Yield, Distribution, and Activity¹

Harold V. Eck; Ronald G. Davis Agronomy Journal 1971. doi:10.2134/agronj1971.00021962006300060034x

Other claims from this paper (11)

Intervention effect Deep plowing tended to decrease root yield of sudangrass.
Intervention effect Deep plowing tended to decrease root yield of soybeans.
Intervention effect Deep plowing had little effect on root yield of cabbage.
Association Root yields of plants decreased with depth on soil rototilled to 20 cm or moldboard plowed to 90 cm.
Intervention effect Application of 22,400 kg/ha of Na2CO3 at the 90 cm plow depth made roots of plants tend to be evenly distributed throughout the 90 cm profile.
Intervention effect Profile modification enhanced root activity of plants, as measured by top-root ratios.
Method / resource Top-root ratios are better indicators of root activity than top or root yields alone.
Observation Sr 85 uptake showed that roots in the 70 to 90 cm zone were as active as roots in the 0 to 20 cm zone.
Intervention effect Na2CO3 tended to increase root weights in its zone of application.
Intervention effect Na2CO3 reduced radiostrontium uptake by about eightfold compared with similarly placed radiostrontium without Na2CO3.
Association Na2CO3 indicates a decrease in root activity.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Deep plowing tended to decrease root yield of soybeans.

Taxon: soybeansGlycine maxe1
Treatment: Deep plowinge1
Outcome: root yieldse1
Direction: decreasee1

Not reportedComparator

Verbatim

e1
“Deep plowing tended to decrease root yields of sudangrass ( Sorghum sudanense ), sugarbeets, ( Beta vulgaris ), and soybeans ( Glycine max ) but had little effect on those of cabbage ( Brassica oleracea var. ‘capitata’)”
✓ located verbatim in the source · abstract, characters 441–660

Title

Profile Modification and Root Yield, Distribution, and Activity¹

Harold V. Eck; Ronald G. Davis Agronomy Journal 1971. doi:10.2134/agronj1971.00021962006300060034x

Other claims from this paper (11)

Intervention effect Deep plowing tended to decrease root yield of sudangrass.
Intervention effect Deep plowing tended to decrease root yield of sugarbeets.
Intervention effect Deep plowing had little effect on root yield of cabbage.
Association Root yields of plants decreased with depth on soil rototilled to 20 cm or moldboard plowed to 90 cm.
Intervention effect Application of 22,400 kg/ha of Na2CO3 at the 90 cm plow depth made roots of plants tend to be evenly distributed throughout the 90 cm profile.
Intervention effect Profile modification enhanced root activity of plants, as measured by top-root ratios.
Method / resource Top-root ratios are better indicators of root activity than top or root yields alone.
Observation Sr 85 uptake showed that roots in the 70 to 90 cm zone were as active as roots in the 0 to 20 cm zone.
Intervention effect Na2CO3 tended to increase root weights in its zone of application.
Intervention effect Na2CO3 reduced radiostrontium uptake by about eightfold compared with similarly placed radiostrontium without Na2CO3.
Association Na2CO3 indicates a decrease in root activity.

“yield decrease”

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