Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Absorbed nitrogen at stage III decreased the main bulb yield.

Taxon: Dutch irisIris ×hollandicae0
Material: Wedg-Woode1
Organ / stage: stage IIIe3
Treatment: absorbed nitrogene2
Outcome: main bulb yielde3
Direction: decreasee3
Setting: sand culturee1

Not reportedComparator

Verbatim

e0
“growth and the yield of Dutch iris”
✓ located verbatim in the source · abstract, characters 259–293

e1
“5.5±0.2g bulbs of cv.‘Wedg-Wood’in sand culture”
✓ located verbatim in the source · abstract, characters 303–350

e2
“The effects of absorbed nitrogen of each stages on the production of the bulbs were shown in Tables 5 and 6, i.e., stage I, non-effective or rather decrease the yield”
✓ located verbatim in the source · abstract, characters 2529–2695

e3
“stage III, decrease the main bulb yield, but tend to increase the lateral bulbs yield”
✓ located verbatim in the source · abstract, characters 2797–2882

Title

Nitrogen nutritional studies with flower-bulb crops

Mikiyo YAMANE Journal of the Japanese Society for Horticultural Science 1970. doi:10.2503/jjshs.39.353

Other claims from this paper (19)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Absorbed nitrogen at stage IV decreased the main bulb yield.

Taxon: Dutch irisIris ×hollandicae0
Material: Wedg-Woode1
Organ / stage: stage IVe3
Treatment: absorbed nitrogene2
Outcome: main bulb yielde3
Direction: decreasee3
Setting: sand culturee1

Not reportedComparator

Verbatim

e0
“growth and the yield of Dutch iris”
✓ located verbatim in the source · abstract, characters 259–293

e1
“5.5±0.2g bulbs of cv.‘Wedg-Wood’in sand culture”
✓ located verbatim in the source · abstract, characters 303–350

e2
“The effects of absorbed nitrogen of each stages on the production of the bulbs were shown in Tables 5 and 6, i.e., stage I, non-effective or rather decrease the yield”
✓ located verbatim in the source · abstract, characters 2529–2695

e3
“stage IV, decrease the main bulb yield, but tend to increase the lateral bulbs yield”
✓ located verbatim in the source · abstract, characters 2974–3058

Title

Nitrogen nutritional studies with flower-bulb crops

Mikiyo YAMANE Journal of the Japanese Society for Horticultural Science 1970. doi:10.2503/jjshs.39.353

Other claims from this paper (19)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain protein yield decreased by 12.5 lb per acre for each week of sowing delay.

Taxon: WheatTriticum aestivumt0
Treatment: delay in sowinge0
Outcome: grain protein yielde0
Direction: decreasee0
Value: 12.5 lb an acree0

Verbatim

e0
“decrease in grain protein yield of 12.5 lb an acre for each week's delay in sowing”
✓ located verbatim in the source · abstract, characters 524–606

t0
“Wheat”
✓ located after whitespace/quote normalisation · title, characters 19–24

Title

Time of sowing and wheat production in southern NSW

GD Kohn; RR Storrier Australian Journal of Experimental Agriculture and Animal Husbandry 1970. doi:10.1071/ea9700604

Other claims from this paper (11)

Association Wheat grain yield fell 3.7% per week after the end of April.
Association Grain protein increased 0.09 to 0.56% per week of delayed sowing, depending on season.
Association Delayed sowing reduced kernel size.
Association Later sowing reduced efficiency of soil moisture use after flowering.
Association Early sown crops had about two inches more cumulative evapotranspiration than late sown crops in mid-spring.
Observation All sowings depleted soil moisture potential to -15 bars at maturity to four to five feet depth.
Association Late sown crops matured more rapidly.
Association Late sown crops had reduced yield components.
Observation Soil mineral nitrogen was adequate for every sowing.
Observation In two years, mineralization of soil organic nitrogen contributed significantly to crop nitrogen requirements.
Observation In a third year, soil mineral nitrogen losses were unexplained by plant uptake.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Double file planting in deep furrows slightly decreased grain yield.

Taxon: CornZea mays subsp. mayst0
Treatment: double file planting in deep furrowse0
Outcome: grain yielde0
Direction: decreasee0
Qualifier: slighte0

Not reportedComparator

Verbatim

t0
“Corn”
✓ located verbatim in the source · title, characters 48–52

e0
“double file planting in deep furrows (rafter method) gave greatest efficiency of water use but with a slight decrease in grain yield”
✓ located verbatim in the source · abstract, characters 272–404

Title

Effects of Soil Moisture and Organic Mulches on Corn Planted in Different Patterns

K. Anand Reddy; B. Bhasker Reddy; K. Balaswamy; et al. Experimental Agriculture 1978. doi:10.1017/s0014479700009042

Other claims from this paper (7)

Intervention effect Normal planting and irrigation gave higher corn yields.
Intervention effect Normal planting and irrigation gave the lowest water use efficiency.
Intervention effect Double file planting in deep furrows gave the greatest water use efficiency.
Intervention effect Mulches improved water use efficiency by 50–60%.
Intervention effect Mulches reduced irrigation requirements by four to six irrigations.
Recommendation Under limited moisture, combining the practices is likely to halve irrigation requirements.
Recommendation Under limited moisture, combining the practices is likely to double water use efficiency.

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.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Deviations from regression tended to decrease up to mixtures with eight or more components.

Taxon: soybeanGlycine maxt0
Treatment: mixturese0
Outcome: mean squares for deviations from regressione0
Direction: decreasee0
Value: eight or more componentse0

Verbatim

e0
“Average mean squares for deviations from regression were slightly smaller for mixtures than multiple pure stands and tended to decrease until mixtures had eight or more components.”
✓ located verbatim in the source · abstract, characters 962–1142

t0
“Soybean Mixtures”
✓ located verbatim in the source · title, characters 19–35

Title

Yield Stability of Soybean Mixtures and Multiple Pure Stands¹

A. K. Walker; W. R. Fehr Crop Science 1978. doi:10.2135/cropsci1978.0011183x001800050006x

Other claims from this paper (6)

Observation Soybean yields across 12 environments ranged from 11.1 to 39.2 q/ha.
Intervention effect Mixtures did not differ significantly in yield from component pure stands.
Observation Regression coefficients did not significantly differ among pure lines, mixtures and multiple pure stands or from unity.
Intervention effect Deviations from regression were slightly smaller for mixtures than multiple pure stands.
Observation Variation in regression deviations was greater within than among heterogeneity levels.
Association Stable production depended on particular cultivars or mixtures as much as component number.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Population yield level decreased concurrently with the decline of D6301 frequency.

Taxon: Triticum aestivumTriticum aestivume7
Material: D6301e6
Outcome: population yield levele6
Direction: decreasee6

Verbatim

e7
“Intergenotypic competition was examined in Triticum aestivum L. em. Thell. populations”
✓ located verbatim in the source · abstract, characters 0–86

e6
“D6301 decreased in frequency over time with a concurrent decrease in the population yield level”
✓ located verbatim in the source · abstract, characters 447–542

Title

Intergenotypic Competition Between Tall and Dwarf Wheats. I. In Mechanical Mixtures¹

M. A. Khalifa; C. O. Qualset Crop Science 1974. doi:10.2135/cropsci1974.0011183x001400060005x

Other claims from this paper (11)

Observation Population yields in wheat mixtures were predictable on the basis of pure-stand performance.
Association The contribution of D6301 to total yield was significantly below expectations at all frequencies.
Association R50 showed complementary competition, with yield above expectations from pure-stand performance.
Observation Reproductive values were strongly frequency-dependent for both genotypes.
Association D6301 had a large decrease in kernels per spike.
Association D6301 possibly had decreased spike number.
Association Kernel weight of D6301 was not affected.
Association R50 had increased kernel weight at lower frequencies.
Association R50 possibly had increased spike number.
Association R50 kernel number per spike remained constant over all frequencies.
Association The frequency of D6301 decreased over time in the mixture populations.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Unfavorable conditions could reduce wheat yield by up to 20%.

Taxon: wheatTriticum aestivume1
Interactor: pathogense1pathogen
Outcome: yielde0
Direction: decreasee0
Value: up to 20%e0
Setting: most unfavourable circumstancese0

Verbatim

e0
“A decrease in yield of up to 20% may be expected in the most unfavourable circumstances”
✓ located verbatim in the source · abstract, characters 617–704

e1
“crops like wheat is limited by pathogens”
✓ located verbatim in the source · abstract, characters 499–539

Title

Cultural Measures, Crop Protection and Economics in Cereal Monocultures in Bavaria¹

R. Diercks EPPO Bulletin 1975. doi:10.1111/j.1365-2338.1975.tb02475.x

Other claims from this paper (10)

Observationobservedoriginal resultsimulated

Claim · model-written summary

Relative component contribution decreases as the model moves from seed to land area.

Taxon: cottonGossypium hirsutumt0
Outcome: relative contributions of the primary lint yield componentse0
Direction: decreasee0

Verbatim

e0
“The relative contributions of the primary lint yield components decrease as the complexity of the model increases from yield/seed to yield/unit area of land.”
✓ located verbatim in the source · abstract, characters 397–554

t0
“Cotton”
✓ located verbatim in the source · title, characters 21–27

Title

Ontogenetic Model of Cotton Yield¹

Smith Worley; Harmon H. Ramey; D. C. Harrell; et al. Crop Science 1976. doi:10.2135/cropsci1976.0011183x001600010008x

Other claims from this paper (4)

Method / resource The model represents seed as the basic yield unit.
Method / resource Yield per seed, boll and area can be expressed by model equations.
Observation Each model summation has an upper R3 limit of 1.0.
Method / resource Data illustrated the model use to identify yield components amenable to alteration.

Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Sodium concentrations above 10 meq/liter appeared to reduce pea yield.

Taxon: peasLathyrus oleraceust0
Treatment: Sodium concentrations greater than 10 meq/litere0
Outcome: yielde0
Direction: decreasee0

Verbatim

e0
“Sodium concentrations greater than 10 meq/liter appeared to decrease the yield of both plants”
✓ located verbatim in the source · abstract, characters 548–641

t0
“Peas”
✓ located verbatim in the source · title, characters 65–69

Title

Effect of H2SO4 in High Sodium Irrigation Water on the Growth of Peas and Beans in Calcareous Soil¹

J. Ryan; S. Miyamoto; H. L. Bohn Agronomy Journal 1973. doi:10.2134/agronj1973.00021962006500060047x

Other claims from this paper (9)

Intervention effect Up to 4 meq/liter H 2 SO 4 had no significant effect on pea growth at 1 to 40 meq/liter NaCl.
Intervention effect Up to 4 meq/liter H 2 SO 4 had no significant effect on bean growth at 1 to 40 meq/liter NaCl.
Intervention effect Sulfuric acid adversely affected pea growth at 60 and 80 meq/liter NaCl.
Intervention effect Sulfuric acid adversely affected bean growth at 60 and 80 meq/liter NaCl.
Association Sodium concentrations above 10 meq/liter appeared to reduce bean yield.
Association Plant sodium content increased as irrigation-water sodium increased.
Intervention effect Sulfuric acid did not reduce plant sodium content.
Observation Plant calcium content was unaffected.
Recommendation Acidifying high-sodium irrigation water was ineffective over the studied sulfuric acid range.

“yield decrease”

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