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“yield decrease”

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Observationobservedoriginal resultmeasured

Claim · model-written summary

The maximum soil Eh decrease during flooding was 67 mV/day.

Taxon: Sugarcanet0
Treatment: flooding treatmentse0
Outcome: rate that Eh decreasede0
Direction: decreasede0
Value: 67 mV/daye0

Verbatim

e0
“The maximum rate that Eh decreased during the various flooding treatments was 67 mV/day”
✓ located verbatim in the source · abstract, characters 1047–1134

t0
“Sugarcane”
✓ located verbatim in the source · title, characters 20–29

Title

Redox Potential and Sugarcane Yield Relationship

Cade E. Carter Transactions of the ASAE 1980. doi:10.13031/2013.34689

Other claims from this paper (5)

Association Cane yield fell by 0.2 t/ha for each day of Eh below 332 mV in 1972.
Association Cane yield fell by 0.3 t/ha for each day of Eh below 332 mV in 1973.
Association Sugar yield fell 28 kg/ha per low Eh day in 1973.
Observation The authors estimated four days to shift saturated soil from 600 to 332 mV.
Recommendation The authors recommend drainage within roughly four days to avoid sugarcane yield decline from poor aeration.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The quantum yield of non-cyclic electron transport decreased throughout photoinhibitory treatment.

Taxon: peaLathyrus oleraceuse0
Treatment: photoinhibition treatmente1
Outcome: quantum yield of non‐cyclic electron transporte1
Direction: decreasee1

Not reportedComparator

Verbatim

e0
“photoinhibition treatment of intact pea chloroplasts”
✓ located verbatim in the source · abstract, characters 176–228

e1
“A consistent decrease in the quantum yield of non‐cyclic electron transport was also observed throughout photoinhibition treatment”
✓ located verbatim in the source · abstract, characters 1453–1583

Title

The kinetics of photoinhibition of the photosynthetic apparatus in pea chloroplasts

M. BRADBURY; N. R. BAKER Plant Cell & Environment 1986. doi:10.1111/1365-3040.ep11611692

Other claims from this paper (10)

Intervention effect In the initial 5 min of photoinhibition the minimal fluorescence level increased in pea chloroplasts.
Intervention effect The maximal fluorescence level decreased during photoinhibition of pea chloroplasts.
Intervention effect Electron transport to methyl viologen decreased in the initial 5 min of photoinhibition.
Intervention effect The ability of thylakoids to bind Atrazine decreased in the initial phase of photoinhibition.
Observation Thylakoids became less efficient at generating and maintaining a transmembrane proton gradient during the initial phase.
Intervention effect Both minimal and maximal fluorescence levels declined in the later phase of photoinhibition.
Intervention effect Electron transport was lost in the later phase of photoinhibition.
Intervention effect The capacity to photo-oxidize water was lost in the later phase of photoinhibition.
Observation No further loss of Atrazine binding occurred in the later phase of photoinhibition.
Mechanism Photoinhibitory damage may involve two distinct mechanisms.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Koshihikari panicle and spikelet counts tended to decrease in mixtures.

Taxon: Koshihikarie0
Treatment: mixturese0
Outcome: panicles and the spikelets numbere1
Direction: decreasee0
Qualifier: low fertility levele0

Not reportedComparator

Verbatim

e0
“those of Koshihikari tended to decrease in the mixtures especially in low fertility level”
✓ located verbatim in the source · abstract, characters 1559–1648

e1
“the panicles and the spikelets number of Kanto 100 increased, while those of Koshihikari tended to decrease in the mixtures especially in low fertility level”
✓ located verbatim in the source · abstract, characters 1491–1648

Title

Prevention of lodging by mixed planting of rice varieties. IV. Effects of seed-blends row seeding on lodging and yield.

Takehiko TAKAYA; Hitoshi TAKAHASHI; Masamitsu ITO Japanese Journal of Crop Science 1987. doi:10.1626/jcs.56.322

Other claims from this paper (11)

Association More Kanto 100 in mixtures reduced community lodging.
Association More Kanto 100 increased Koshihikari lodging resistance.
Intervention effect Koshihikari lodging resistance rose in mixtures through shorter culms and greater breaking resistance.
Intervention effect Kanto 100 lodging resistance decreased in mixtures.
Intervention effect Mixtures increased yield at medium fertility where lodging was prevented.
Intervention effect Mixtures had no yield effect in low fertility plots without lodging.
Intervention effect Mixtures had no yield effect at excessive fertility where lodging was not prevented.
Intervention effect Koshihikari had a higher percentage of ripened grains in mixtures than pure stands.
Intervention effect Koshihikari yield was higher in mixtures than pure stands.
Intervention effect Kanto 100 panicle and spikelet counts increased in mixtures.
Association Community lodging was highly positively correlated with lodging index.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Selection for harvest index decreased soybean yield by about 4.5 g per cycle.

Taxon: soybeanGlycine maxe0
Treatment: AHI populatione3
Outcome: yielde3
Direction: decreasee3
Value: about 4.5 ge3

Not reportedComparator

Verbatim

e0
“for soybean (Glycine max (L.) Merr.)”
✓ located verbatim in the source · abstract, characters 58–94

e3
“The AHI population had a moderately large decrease in yield of about 4.5 g”
✓ located verbatim in the source · abstract, characters 1350–1424

Title

Recurrent selection for increased yield in soybean with the aid of genetic male sterility using three selection methods

B. K. Werner Purdue e-Pubs (Purdue University System) 1988

Other claims from this paper (7)

Intervention effect Selection for yield increased soybean yield by nearly 3 g per plant per cycle.
Intervention effect Selection for yield shifted soybean maturity significantly toward lateness by nearly 4 days per cycle.
Intervention effect Selection for harvest index moved soybean maturity slightly earlier.
Intervention effect Selection with the yield-on-maturity index increased soybean yield by 5.7 g per cycle.
Intervention effect Selection with the yield-on-maturity index shifted soybean maturity toward lateness by less than 1 day per cycle.
Recommendation Selection among S0 plants with the yield-on-maturity index could increase soybean yields without a significant shift in maturity.
Intervention effect Selection for harvest index was ineffective for increasing yield or harvest index of soybean.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Half seed rate did not reduce yield compared with full seed rate.

Taxon: winter barleyHordeum vulgaret0
Treatment: half seed ratee0
Outcome: yielde0
Direction: did not decreasee0
Comparator: full seed ratee0

Verbatim

e0
“Sowing at half seed rate did not decrease yield when compared with the crop sown at the full seed rate on the same date”
✓ located verbatim in the source · abstract, characters 736–855

t0
“winter barley”
✓ located verbatim in the source · title, characters 57–70

Title

The influence of cultural factors and mildew on yield of winter barley

A. Bainbridge; M. E. Finney; J. F. Jenkyn The Journal of Agricultural Science 1980. doi:10.1017/s0021859600029002

Other claims from this paper (14)

Intervention effect Early sowing increased winter barley yield by 79·8% in the first year.
Intervention effect Early sowing increased winter barley yield by 53·9% in the second year.
Intervention effect Late sowing approximately halved plant emergence.
Observation Late-sown plants had more tillers, more grains per ear and larger grain, but these did not compensate for thinner stands.
Observation Extra tillering and larger ears generally compensated for fewer plants in contemporaneous crops.
Intervention effect April nitrogen gave the best yield in early and late crops in 1975–6 and late crops in 1977–8.
Intervention effect March nitrogen gave the best yield in early-sown crops in the second year.
Intervention effect March nitrogen increased ear number in early-sown crops.
Intervention effect Nitrogen application date did not influence ear number in late-sown crops or grains per ear in any crop.
Observation Mildew developed on early and late crops throughout the mild 1975–6 winter.
Intervention effect Single autumn, winter or early spring tridemorph sprays increased yield by 6·3–7·6%.
Intervention effect Two sprays had an additive yield increase.
Intervention effect Late spring spray had no significant effect on yield.
Intervention effect After the colder 1977–8 winter, mildew was almost absent and spraying failed to significantly increase yield.

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Pyrites was associated with an appreciable decrease in exchangeable and soluble sodium content of the soil.

Taxon: rice and wheat cropsOryza sativa Triticum aestivumt0
Treatment: pyritese3
Outcome: exchangeable and soluble sodium content of the soile3
Direction: decreasee3

Verbatim

t0
“rice and wheat crops”
✓ located verbatim in the source · title, characters 82–102

e3
“The favourable effect of pyrites on crop yield was associated with an appreciable decrease in the pH, electrical conductivity and exchangeable and soluble sodium content of the soil resulting in greater utilization of Zn and Ca by the crops”
✓ located verbatim in the source · abstract, characters 504–744

Title

Effect of sedimentary pyrites and Zn application on yield, Zn and Ca nutrition of rice and wheat crops and on amelioration of saline sodic soil

K. N. Tiwari; A. N. Pathak; G. P. Upadhyay The Journal of Agricultural Science 1982. doi:10.1017/s0021859600030203

Other claims from this paper (12)

Intervention effect With 40% gypsum-requirement pyrites, first-crop rice grain yield rose to 3.44 t/ha from 1.55 t/ha in the control.
Intervention effect With 80% gypsum-requirement pyrites, first-crop rice grain yield rose to 4.01 t/ha from 1.55 t/ha in the control.
Intervention effect Pyrites residues significantly increased grain yield of succeeding wheat.
Intervention effect Pyrites residues significantly increased grain yield of succeeding rice.
Association Pyrites was associated with an appreciable decrease in soil pH and electrical conductivity in rice and wheat fields.
Intervention effect Zinc applications greatly increased grain yield and Zn uptake of rice and wheat crops.
Intervention effect Higher pyrites with adequate NPK but without Zn did not give yields equal to those from adding 11 kg Zn/ha.
Intervention effect Zn residues from higher Zn treatments produced significant yield responses in succeeding wheat.
Intervention effect Zn residues from higher Zn treatments produced significant yield responses in succeeding rice.
Intervention effect The pyrites+Zn treatment was most effective in decreasing grain Na content of rice and wheat crops.
Intervention effect The pyrites+Zn treatment enhanced Ca uptake of rice and wheat crops.
Intervention effect The Zn treatment alone decreased soil pH, electrical conductivity and exchangeable Na.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The authors attribute lodging-related yield loss primarily to fewer seeds.

Taxon: soybeansGlycine maxe1
Outcome: Decrease in seed yielde0
Qualifier: reduction in number of seeds produced on lodged plantse0

Verbatim

e0
“Decrease in seed yield, therefore, was primarily due to reduction in number of seeds produced on lodged plants”
✓ located verbatim in the source · abstract, characters 1236–1346

e1
“soybeans [ Glycine max (L.) Merr.]”
✓ located verbatim in the source · abstract, characters 38–72

Title

Influence of Induced Lodging on Pod Distribution and Seed Yield in Soybeans¹

Ramli Bin Mohd Noor; C. E. Caviness Agronomy Journal 1980. doi:10.2134/agronj1980.00021962007200060010x

Other claims from this paper (10)

Observation The semideterminate soybean strain grew similarly to Midwest indeterminate cultivars.
Intervention effect Lodging at R4 significantly reduced soybean seed yield.
Intervention effect Lodging at V8 did not significantly reduce soybean yield.
Intervention effect Lodging at R2 did not significantly reduce soybean yield.
Observation The determinate cultivar and semideterminate soybean strain responded similarly to lodging.
Intervention effect Lodging at V8 increased the percentage of soybean pods on lateral branches.
Intervention effect Lodging at R2 increased the percentage of soybean pods on lateral branches.
Intervention effect Lodging at R4 did not change soybean lateral pod percentage.
Intervention effect Lodging did not affect soybean seeds per pod.
Intervention effect Lodging affected soybean seeds per plant more than seed size.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Late cutting decreased P. plicatulum seed yield by 23%.

Taxon: P. plicatulumPaspalum plicatulume0
Treatment: late cute0
Outcome: seed yielde1
Direction: decreasee0
Value: 23%e0

Not reportedComparator

Verbatim

e0
“23% decrease in late cut P. plicatulum”
✓ located verbatim in the source · abstract, characters 771–809

e1
“seed yield was similar in cut or burnt treatments”
✓ located verbatim in the source · abstract, characters 709–758

t0
“Seed production in Brachiaria decumbens and Paspalum plicatulum”
✓ located verbatim in the source · title, characters 0–63

Title

Seed production in Brachiaria decumbens and Paspalum plicatulum as influenced by system of residue disposal

WW Stnr; LR Humphreys Australian Journal of Agricultural Research 1987. doi:10.1071/ar9870869

Other claims from this paper (7)

Intervention effect Burning initially reduced tillering, especially after a seven-day cut-to-burn interval.
Observation The initial tillering difference disappeared in P. plicatulum when floral initiation was distant.
Intervention effect Seed yield was similar in cut and burnt treatments.
Intervention effect Late-defoliated B. decumbens yielded 31% more seed than early-defoliated swards.
Intervention effect Burning slightly increased synchrony of inflorescence exsertion in P. plicatulum.
Intervention effect Burning reduced crop lodging.
Association In a subordinate P. plicatulum experiment, lodging correlated positively with nitrogen supply.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Dry matter yield tended to fall when the S:P ratio was below 0.25.

Taxon: WheatTriticum aestivumt0
Compound: S: Pe0
Outcome: dry matter yielde0
Direction: decreasee0
Qualifier: S: P ratio was less than 0.25e0

Verbatim

e0
“The dry matter yield tended to decrease when S: P ratio was less than 0.25”
✓ located verbatim in the source · abstract, characters 808–882

t0
“Wheat”
✓ located verbatim in the source · title, characters 46–51

t1
“Phosphorus and Sulphur”
✓ located verbatim in the source · title, characters 0–22

Title

Phosphorus and Sulphur Inter-relationships in Wheat (Triticum aestivum L.)

Abbas Marok; G. Dev Journal of the Indian Society of Soil Science 1980

Other claims from this paper (10)

Intervention effect Phosphorus and sulphur application increased wheat dry matter yield.
Association The phosphorus-by-sulphur interaction on dry matter yield was positive and significant.
Intervention effect Phosphorus application increased wheat P content and total uptake.
Intervention effect Phosphorus application decreased tissue S concentration.
Intervention effect Sulphur application increased P and S contents and total S uptake.
Intervention effect Applied P significantly increased utilization of applied S and the fraction of plant S from fertilizer.
Intervention effect Increasing S application increased fertilizer S uptake and its fraction of plant S.
Intervention effect Increasing S application decreased percent utilization of fertilizer S.
Intervention effect The plant S:P ratio narrowed as P application increased.
Association Dry matter yield was considerably reduced when the S:P ratio exceeded 0.75.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Delayed planting decreased yield by 9% in both groups, with a highly significant planting date effect.

Taxon: SoybeanGlycine maxt0
Treatment: delayed plantinge0
Outcome: yielde0
Direction: decreasee0
Value: 9%e0

Not reportedComparator

Verbatim

e0
“Both groups showed a 9% decrease in yield due to delayed planting. The planting date effect was highly significant”
✓ located verbatim in the source · abstract, characters 1164–1278

t0
“Soybean”
✓ located verbatim in the source · title, characters 58–65

Title

Effect of Early and Late Flowering on Agronomic Traits of Soybean at Different Planting Dates¹

T. W. Pfeiffer; D. Pilcher Crop Science 1987. doi:10.2135/cropsci1987.0011183x002700010027x

Other claims from this paper (14)

Observation The early flowering group flowered 10 days earlier than the late flowering group.
Observation Group EF matured 1 day earlier than group LF.
Observation Group LF was taller and had more nodes at R1, R4 and R7 at both planting dates.
Observation Flowering to pod initiation was shorter in group LF than group EF.
Observation Seed filling was shorter in group LF than group EF.
Observation Early planted group EF yielded 1510 kg ha−1.
Observation Early planted group LF yielded 1520 kg ha−1.
Observation Late planted group EF yielded 1370 kg ha−1.
Observation Late planted group LF yielded 1380 kg ha−1.
Observation The flowering group effect and its interaction with planting date were nonsignificant for yield.
Intervention effect In 1983 and 1984, delayed planting reduced group LF yield by 6%.
Intervention effect In 1983 and 1984, delayed planting reduced group EF yield by 17%.
Observation Group LF did not yield significantly more in late plantings despite significant interaction in 1983 and 1984.
Observation The two flowering groups did not differ in yield in late plantings in 1982.

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“yield decrease”

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