Search claims · PlantClaims

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Weeds reduced rice panicle number most strongly.

Taxon: RiceOryza sativat0
Outcome: 穂数減e0
Direction: 減e0

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 32–36

e0
“雑草害としては, 稲の形質は穂数減として大きく現われ”
✓ located verbatim in the source · abstract, characters 604–630

Title

Estimation of Yield Decrease of Rice due to Weeds in Dry Sowing Culture

Takashi OTA; Shozaburo SAIGO; Yutaka HIRANO Journal of Weed Science and Technology 1963. doi:10.3719/weed.1963.86

Other claims from this paper (8)

Association Mature weed mass and brown-rice yield were strongly negatively correlated, with r = −0.95.
Observation The mature weed mass–yield relation was y = −0.008x + 48.74.
Association Weed mass about 20 days after flooding also related to yield, modeled as y = 43.8×10−0.00046x.
Observation Early weed suppression before flooding was effective in the dry-sown rice system.
Observation The relation between early weed mass and yield could not be resolved.
Observation Weeds also shortened rice panicles.
Observation Very high weed mass increased lodging.
Observation Very high weed mass worsened grain filling.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors attributed optical rotation variation to variation in 1-citronellol percentage.

Taxon: Pelargonium speciesPelargoniumt0
Outcome: increase and decrease in percentage of 1-citronellole0
Qualifier: probablye0

Verbatim

e0
“This is probably due to the increase and decrease in percentage of 1-citronellol”
✓ located verbatim in the source · abstract, characters 1691–1771

t0
“Pelargonium species”
✓ located verbatim in the source · title, characters 97–116

Title

Seasonal Variation of both the Percentage Yield of Essential Oil and the Chemical Composition in Pelargonium species

Teruo YOSHIDA; Shigenori IKAWA; Satoshi MORISADA Japanese Journal of Crop Science 1968. doi:10.1626/jcs.37.565

Other claims from this paper (18)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Legume yield rose with oxygen availability.

Taxon: legumese0
Treatment: availability of oxygene0
Outcome: yieldse0
Direction: increasede0

Verbatim

e0
“the yields of legumes increased with increasing availability of oxygen whereas the yields of grasses showed a tendency to decrease.”
✓ located verbatim in the source · abstract, characters 1230–1361

Title

EFFECTS OF DIFFERENT SOIL MOISTURE TENSIONS ON GRASS AND LEGUME SPECIES

B. J. Finn; S. J. Bourget; K. F. Nielsen; et al. Canadian Journal of Soil Science 1961. doi:10.4141/cjss61-003

Other claims from this paper (10)

Observation Grasses tolerated flooding better than legumes.
Observation Flooding tolerance declined in the reported order from reed canary grass to alfalfa.
Association Grass yields tended to increase as moisture and flooding duration increased.
Association Legume yields tended to decline as moisture and flooding duration increased.
Observation Flooding affected yields more at the first harvest than the second.
Association Top and root weights were positively correlated in reed canary grass, birdsfoot trefoil and Ladino clover.
Association Top and root weights were positively correlated in alfalfa.
Association Top and root weights were negatively correlated in timothy and brome grass.
Association Grass yield tended to decline with oxygen availability.
Association Forage yield usually declined as flooded soil temperature rose from 41 to 80°F.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Potato yield was not lowered when planting tempo maintained plant number per hectare.

Taxon: potatoSolanum tuberosume0
Outcome: potato yielde0
Direction: not lowerede0

Verbatim

e0
“The potato yieldwas not lowered in the plots planted at the tempo that the plant number per ha did not decrease”
✓ located verbatim in the source · abstract, characters 1983–2094

Title

Studies on the Working Speed of Semiautomatic Farm Machinery

Wataru SUNOHARA; Kinzo KAWATEI Japanese Journal of Farm Work Research 1969. doi:10.4035/jsfwr.1969.57

Other claims from this paper (12)

Observation Smooth tuber dropping occurred at 0.43 to 0.8 seconds per cycle.
Observation The optimum range for smooth dropping was 0.6 to 0.8 seconds.
Observation At smooth dropping tempos, both hands moved and stopped simultaneously and rhythmically with consistent motion times.
Observation At tempos too fast or slow, hand rhythm was disrupted.
Intervention effect Tempos faster than 0.5 seconds reduced the number of dropped tubers.
Intervention effect Tempos faster than 0.5 seconds decreased plant number per hectare.
Observation Dropped tuber interval deviated least at the smoothest tempo.
Intervention effect Overly fast dropping caused larger plant spacing deviations at dropping, sprouting and harvest.
Observation At smooth and overly slow tempos, plant spacing variation was 20–40% of the predetermined spacing.
Intervention effect Slower tempo did not lower the spacing coefficient of variance.
Observation The upper limit of tempo maintaining plant number per hectare was estimated at 0.5 seconds.
Recommendation The authors concluded that optimum dropping tempo was 0.6 seconds.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The most susceptible varieties had a marked temporary growth-rate decrease early in infection.

Taxon: wheatTriticum aestivume0 e1 e2 e3
Outcome: rate of growthe0 e1 e2 e3
Direction: decreasee0 e1 e2 e3
Qualifier: early shock phase of infectione0 e1 e2 e3

Verbatim

e0
“In the most susceptible varieties, the rate of growth suffered a marked temporary decrease during the early shock phase of infection”
✓ located verbatim in the source · abstract, characters 479–611

e1
“Nine varieties of common wheat (Triticum aestivum L.) and four varieties of durum wheat (T. durum Desf.) were inoculated with three isolates of barley yellow dwarf virus (BYDV) in the greenhouse”
✓ located verbatim in the source · abstract, characters 0–194

e2
“Manitou, one of the varieties of common wheat tested in the greenhouse, was also inoculated with one of the virus isolates in a field plot”
✓ located verbatim in the source · abstract, characters 612–750

e3
“The yield from plants inoculated at the three-leaf stage was 64% less than that from uninfected plants”
✓ located verbatim in the source · abstract, characters 752–854

Title

SUSCEPTIBILITY OF COMMON AND DURUM SPRING WHEATS TO BARLEY YELLOW DWARF VIRUS

C. C. Gill Canadian Journal of Plant Science 1967. doi:10.4141/cjps67-099

Other claims from this paper (8)

Observation All tested wheat varieties were susceptible to BYDV.
Intervention effect BYDV severely reduced wheat yield in the greenhouse.
Observation Leaf discoloration and chlorosis were slight in most varieties inoculated with the two stronger isolates.
Observation Stunting, delayed heading and fewer tillers were apparent in inoculated wheat.
Intervention effect Manitou yield was 64% lower after three-leaf-stage inoculation than in uninfected plants.
Intervention effect Manitou yield was reduced by 40% after inoculation at the four-to-five-tiller stage.
Observation Mature plants inoculated at the three-leaf stage were stunted and had fewer tillers and smaller heads.
Observation Later inoculation caused only slight yellowing of leaf tips after about 18 days.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing seeding rate decreased fertile heads per plant curvilinearly across crops.

Taxon: WHEAT, OATS AND BARLEYt0
Treatment: increase in seeding ratee0
Outcome: number of fertile heads per plante0
Direction: curvilinear decreasee0

Verbatim

t0
“WHEAT, OATS AND BARLEY”
✓ located verbatim in the source · title, characters 71–93

e0
“For all crops, the increase in seeding rate causes a linear increase in the number of plants per acre and a curvilinear decrease in the number of fertile heads per plant.”
✓ located verbatim in the source · abstract, characters 901–1071

Title

THE INFLUENCE OF SEEDING RATE ON THE YIELD AND THE YIELD COMPONENTS OF WHEAT, OATS AND BARLEY

A. A. Guitard; J. A. Newman; P. B. Hoyt Canadian Journal of Plant Science 1961. doi:10.4141/cjps61-112

Other claims from this paper (10)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Reduced nitrogen supply in the critical period proportionally reduced phosphate, potassium and silica absorption.

Taxon: RiceOryza sativat0
Treatment: Decreasing the nitrogen supply in the critical periode0
Outcome: amount of phosphate, potassium and silica absorbede0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Decreasing the nitrogen supply in the critical period, in which the plant form after heading is predetermined, made the plant proportionally decrease the amount of phosphate, potassium and silica absorbed”
✓ located verbatim in the source · abstract, characters 1254–1458

t0
“Lowland Rice”
✓ located verbatim in the source · title, characters 105–117

Title

Analysis of Yield-Determining Process and Its Application to Yield-Prediction and Culture Improvement of Lowland Rice : LXXIV. Studies on the principles for maximizing yield and their demonstration (3).

Seizo MATSUSHIIMA; Genshichi WADA; Akio MATSUZAKI Japanese Journal of Crop Science 1966. doi:10.1626/jcs.34.321

Other claims from this paper (15)

Intervention effect Increasing early tiller production increased panicle numbers and enabled target spikelet density.
Intervention effect Reducing spikelets per panicle and excessive growth improved ripening percentage.
Observation The maximum brown rice yield was 91.9kg per are.
Observation Eight treatments yielded more than 75kg per are.
Association Spikelet density was strongly positively correlated with nitrogen absorbed by spikelet differentiation or heading.
Method / resource The spikelet–nitrogen correlation can estimate nitrogen supply needed for target spikelet numbers.
Intervention effect Reduced nitrogen supply decreased spikelet number.
Intervention effect Reduced nitrogen supply increased carbohydrate amount.
Mechanism Increased carbohydrate favored ripening and prevented lodging.
Recommendation Nitrogen reduction should account for spikelet number, ripening percentage and lodging resistance.
Observation The apparent optimum leaf-area index at heading for maximum postheading dry matter was about 7 to 8.
Association The optimum leaf-area index may vary with plant form and health even under given light intensity.
Observation Preheading straw carbohydrate accumulation contributed less than 20% of final grain yield.
Recommendation The authors recommend sufficient solar radiation for 25 days after heading to increase carbohydrate assimilation.
Recommendation The authors recommend selecting variety and planting date to use the sunniest ripening period.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Yield reductions were mainly due to fewer kernels per spikelet.

Taxon: SPRING WHEATTriticum aestivumt0
Organ / stage: kernels per spikelete0
Outcome: yield reductionse0

Verbatim

e0
“The yield reductions at all growth stages were mainly due to a decrease in the number of kernels per spikelet”
✓ located verbatim in the source · abstract, characters 427–536

t0
“SPRING WHEAT”
✓ located verbatim in the source · title, characters 12–24

Title

RESPONSE OF SPRING WHEAT TO THE APPLICATION OF 2,4‐D AT VARIOUS GROWTH STAGES*

M. J. PINTHUS; Y. NATOWITZ Weed Research 1967. doi:10.1111/j.1365-3180.1967.tb01358.x

Other claims from this paper (8)

Observation Wheat was most sensitive to 2,4‐D at spike initiation.
Observation Wheat was most resistant after spike differentiation.
Observation Wheat close to caring was again very sensitive.
Intervention effect The low 2,4‐D dose reduced wheat grain yield by up to 19%.
Intervention effect The high 2,4‐D dose reduced wheat grain yield by up to 34%.
Intervention effect 2,4‐D during tillering reduced spikes per plant and spikelets per spike.
Intervention effect Some T. aestivum spikes were malformed after treatment at spike initiation.
Observation Malformed spikes had similar grain yield to normal spikes under equal treatment.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Nitrogen top dressing decreased percentage amino acid content.

Taxon: wheatTriticum aestivume0
Treatment: Nitrogen top dressinge0
Outcome: percentage content of amino acidse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Nitrogen top dressing of wheat during the earing period results in a sharp increase in gluten yield. A decrease in the percentage content of amino acids occurs simultaneously in this case.”
✓ located verbatim in the source · abstract, characters 747–935

Title

EFFECT OF PLANT NUTRITION ON THE AMINO-ACID COMPOSITION OF WHEAT PROTEINS

Poltavskaya, I. A. Defense Technical Information Center (DTIC) 1965

Other claims from this paper (12)

Intervention effect Nitrate nutrition increased wheat tryptophan and tyrosine content.
Intervention effect Ammonia nutrition yielded higher wheat cystine content.
Observation The amino acid difference occurred in vegetative and reserve proteins.
Mechanism Nitrate nutrition increased grain tryptophan and tyrosine through a rise in middlings yield.
Observation Middlings contain more of these proteins than gluten proteins.
Intervention effect Nitrogen top dressing at earing sharply increased gluten yield.
Observation Absolute amino acid percentage in gluten did not fall because gluten yield was high.
Intervention effect Inadequate phosphorus increased wheat gluten yield.
Intervention effect Inadequate phosphorus decreased middlings content.
Intervention effect Phosphorus deficiency reduced tryptophan content in gluten protein.
Intervention effect Phosphorus deficiency reduced total tryptophan content in wheat grain.
Recommendation The authors concluded normal phosphorus nutrition is important for wheat tryptophan synthesis.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Weed mass about 20 days after flooding also related to yield, modeled as y = 43.8×10−0.00046x.

Taxon: RiceOryza sativat0
Interactor: 雑草e0weed
Outcome: 収量e0
Value: 43.8×10-0.00046xe0

Not reportedDirection

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 32–36

e0
“灌水後20日頃の生育中期 (有効分げつ限界期) における雑草量と収量との間にも一定の関係がみられ, y=43.8×10-0.00046xという式が得られた”
✓ located verbatim in the source · abstract, characters 402–479

Title

Estimation of Yield Decrease of Rice due to Weeds in Dry Sowing Culture

Takashi OTA; Shozaburo SAIGO; Yutaka HIRANO Journal of Weed Science and Technology 1963. doi:10.3719/weed.1963.86

Other claims from this paper (8)

Association Mature weed mass and brown-rice yield were strongly negatively correlated, with r = −0.95.
Observation The mature weed mass–yield relation was y = −0.008x + 48.74.
Observation Early weed suppression before flooding was effective in the dry-sown rice system.
Observation The relation between early weed mass and yield could not be resolved.
Observation Weeds reduced rice panicle number most strongly.
Observation Weeds also shortened rice panicles.
Observation Very high weed mass increased lodging.
Observation Very high weed mass worsened grain filling.

“yield decrease”

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