Search claims · PlantClaims

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Yields of the alfalfa component in the third year tended to decrease as the number of harvests in previous years increased.

Taxon: alfalfaMedicago sativae0
Treatment: the number of harvests in the previous yearse2
Outcome: yields of the alfalfa component in the third yeare2
Direction: decreasee2
Qualifier: tendede2

Verbatim

e0
“Rhizoma and Grimm alfalfa, each in a simple mixture with timothy, were subjected to seven cutting schedules in the first 2 harvest years”
✓ located verbatim in the source · abstract, characters 49–185

e2
“The yields of the alfalfa component in the third year tended to decrease with an increase in the number of harvests in the previous years”
✓ located verbatim in the source · abstract, characters 462–599

Title

EFFECT OF DATE AND FREQUENCY OF DEFOLIATION ON YIELD AND QUALITY OF ALFALFA

L. P. Folkins; J. E. R. Greenshields; F. S. Nowosad Canadian Journal of Plant Science 1961. doi:10.4141/cjps61-022

Other claims from this paper (4)

Intervention effect Rhizoma outyielded Grimm after a winter of severe icing in 1953.
Intervention effect The two alfalfa varieties did not differ significantly in yield in five of six seasons.
Association Protein yield per acre increased with the number of clippings.
Recommendation Avoiding defoliation between August 15 and October 15 maintains the highest alfalfa yields.

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Twenty-inch spacing decreased yield, returns and yellow leaf percentage versus 16 inches.

Taxon: CIGAR TOBACCOt0
Treatment: 20-in. spacinge0
Outcome: yield, crop returns, and percentage of yellow leafe0
Direction: decreasee0
Comparator: 16-in. spacinge0

Verbatim

t0
“CIGAR TOBACCO”
✓ located verbatim in the source · title, characters 44–57

e0
“the 20-in. spacing caused a decrease in yield, crop returns, and percentage of yellow leaf and an increase in weight per leaf and percentage of filler leaf from that obtained with the 16-in. spacing.”
✓ located verbatim in the source · abstract, characters 588–787

Title

DIFFERENCES IN RESPONSE OF TWO VARIETIES OF CIGAR TOBACCO TO VARIATIONS IN PLANT POPULATION AND NITROGEN FERTILIZATION

F. H. White Canadian Journal of Plant Science 1965. doi:10.4141/cjps65-049

Other claims from this paper (11)

Observation Pennsylvania Broadleaf had higher yields and returns than Resistant Havana 211.
Observation Pennsylvania Broadleaf had more leaves and greater weight per leaf.
Observation Pennsylvania Broadleaf had higher midrib and yellow trash leaf percentages.
Intervention effect Spacing relatively little affected variety differences at either nitrogen level.
Intervention effect Twenty-inch spacing increased leaf weight and filler leaf percentage versus 16 inches.
Intervention effect Raising nitrogen from 24 to 60 lb per acre increased leaf weight in Resistant Havana 211.
Intervention effect Additional nitrogen increased Pennsylvania Broadleaf yield, returns and weight per leaf.
Intervention effect Additional nitrogen increased Pennsylvania Broadleaf filler leaf percentage.
Intervention effect Nitrogen rate had little effect on grade index and leaves per plant.
Intervention effect Nitrogen rate had little effect on nicotine, nornicotine and total alkaloid percentages.
Intervention effect Sixteen-inch spacing with 60 lb nitrogen was superior for filler leaf production in both varieties.

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Successive defoliations brought progressively smaller top-yield declines.

Taxon: Italian ryegrassLolium multiflorume1
Treatment: repeating of defoliatione0
Outcome: decrease of top yieldse0
Direction: reducede0

Verbatim

e0
“with the progress of repeating of defoliation, the decrease of top yields and stubble·root dry weight following each defoliation were reduced.”
✓ located verbatim in the source · abstract, characters 445–587

e1
“the regrowth of shoot in Italian ryegrass”
✓ located verbatim in the source · abstract, characters 140–181

Title

Physiological and Ecological Studies on Clipping of Herbage Plants. : II. Influence of cutting frequency on the exhaustion of root·stubble reserves and the regrowth of shoot.

Satoshi MAEDA Japanese Journal of Crop Science 1961. doi:10.1626/jcs.30.31

Other claims from this paper (9)

Intervention effect More frequent leaf removal reduced total leaf production.
Intervention effect More frequent leaf removal reduced root-stubble dry weight.
Observation The first clipping caused the largest decline in shoot yield.
Observation The first clipping caused the largest decline in root-stubble dry weight.
Association Successive defoliations brought progressively smaller root-stubble dry-weight declines.
Association Available carbohydrate concentration in root-stubble declined as clipping frequency increased.
Intervention effect Root-stubble nitrogen concentration was higher with 50-day clipping than with no clipping.
Association Root-stubble nitrogen concentration declined as clipping frequency increased.
Association Increasing clipping frequency appeared to raise the root-stubble cell-wall to reserve-substance ratio.

Associationobservedoriginal resultmeasured

Claim · model-written summary

An increase in the leaf weight index led to a decrease in the net assimilation rate in both periods.

Taxon: riceOryza sativae0
Treatment: the increase of the leaf weight indexe6
Outcome: net assimilation ratee6
Direction: decreasee6

Verbatim

e0
“This experiment was conducted on the direct sown short-period rice plant cultivated under upland condition in different seasons (early, ordinary and late)”
✓ located verbatim in the source · abstract, characters 0–154

e6
“the increase of the leaf weight index led to a decrease in the net assimilation rate”
✓ located verbatim in the source · abstract, characters 1201–1285

Title

Studies on the Short Period Cultivation of Direct Sown Rice Plant : 3. Effect of the early stage growth of the rice plant under upland condition on the growth and yield after the water-logged period.

Noboru IKENAGA; Rinitsu MORITA; Isamu KAWASAKI Japanese Journal of Crop Science 1965. doi:10.1626/jcs.33.214

Other claims from this paper (11)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

High nitrogen decreased oil menthol content.

Taxon: Mentha piperitaMentha ×piperitat0
Outcome: menthol content of the oile0
Direction: decreasee0

Not reportedTreatmentComparator

Verbatim

e0
“This also results in a decrease in the menthol content of the oil.”
✓ located verbatim in the source · abstract, characters 450–516

t0
“Mentha piperita”
✓ located verbatim in the source · title, characters 78–93

Title

The effects of growth conditions on the yield and quality of essential oil of Mentha piperita

Christopher O’Connor Journal of Pharmacy and Pharmacology 1965. doi:10.1111/j.2042-7158.1965.tb07744.x

Other claims from this paper (3)

Intervention effect High nitrogen significantly increased essential oil yield.
Intervention effect Superphosphate reduced oil menthol percentage.
Intervention effect Mixtures of three fertilizers reduced oil percentage yield.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Ploughing to 21 and 28 cm significantly decreased soil bulk density.

Taxon: Upland Paddyt0
Treatment: 21 and 28 cm. ploughinge0
Outcome: bulk densitye0
Direction: decreasee0

Not reportedComparator

Verbatim

t0
“Upland Paddy”
✓ located verbatim in the source · title, characters 39–51

e0
“A significant decrease in bulk density was observed with the 21 and 28 cm. ploughing, negatively correlated with dry matter of crop roots and yield of grain”
✓ located verbatim in the source · abstract, characters 183–339

Title

Effect of Depth of Tillage on Yield of Upland Paddy and on Associated Weeds

H. K. Pande; V. M. Bhan Experimental Agriculture 1966. doi:10.1017/s0014479700026752

Other claims from this paper (6)

Association Bulk density was negatively correlated with dry matter of crop roots and grain yield.
Intervention effect Tillage to 28 cm significantly reduced weed population and dry matter compared with tillage at 7 and 14 cm.
Association There were significant relations between weed dry matter and grain yield.
Intervention effect Crop roots under tractor tillage were significantly greater than with 7 cm tillage.
Intervention effect Grain yield was maximum under 28 cm tillage, followed by 21, 14 and 7 cm tillage in that order.
Association Higher grain yields were associated with more fertile tillers per metre of row and higher yields per tiller.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High water temperature decreased rice yield components and yield.

Taxon: RiceOryza sativat0
Treatment: high (37°C)e0
Outcome: yield-components and yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“high (37°C) and low (15°C) water-temperatures caused the development of young panicles as well as the elongation of internodes to arrest and made the plant to produce the late emerging tillers and to kill young panicles inside the tillers (only high temperature) and furthermore to decrease the values of yield-components and yield.”
✓ located verbatim in the source · abstract, characters 971–1303

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 : LXII. Effects of irrigation-water temperature under different water-depths on the growth, grain yield and yield-components of rice.

Kosei TSUNODA; Seizo MATSUSHIMA Japanese Journal of Crop Science 1962. doi:10.1626/jcs.31.19

Other claims from this paper (15)

Intervention effect Deeper water increased rice plant height at tillering.
Intervention effect Deeper water reduced rice tiller number at tillering.
Intervention effect High water temperature arrested young panicle development and internode elongation.
Intervention effect Low water temperature arrested young panicle development and internode elongation.
Intervention effect High water temperature induced late emerging tillers.
Intervention effect Low water temperature induced late emerging tillers.
Intervention effect High temperature killed young panicles inside tillers.
Intervention effect Low water temperature decreased rice yield components and yield.
Association Temperature effects differed with young panicle developmental stage and water depth.
Association At young panicle formation temperature damage was severe at every water depth and unrelated to depth, especially at high temperature.
Association At booting, shallow water caused slight temperature damage and deeper water increased damage.
Observation All young panicles remained below water at every depth during young panicle formation.
Observation At booting, most young panicles were above water at 2 cm depth.
Association At booting, the number of submerged young panicles increased as water deepened.
Mechanism Differences in panicle submergence mainly explain stage differences in temperature damage under normal water depth.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low water temperature decreased rice yield components and yield.

Taxon: RiceOryza sativat0
Treatment: low (15°C)e0
Outcome: yield-components and yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“high (37°C) and low (15°C) water-temperatures caused the development of young panicles as well as the elongation of internodes to arrest and made the plant to produce the late emerging tillers and to kill young panicles inside the tillers (only high temperature) and furthermore to decrease the values of yield-components and yield.”
✓ located verbatim in the source · abstract, characters 971–1303

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 : LXII. Effects of irrigation-water temperature under different water-depths on the growth, grain yield and yield-components of rice.

Kosei TSUNODA; Seizo MATSUSHIMA Japanese Journal of Crop Science 1962. doi:10.1626/jcs.31.19

Other claims from this paper (15)

Intervention effect Deeper water increased rice plant height at tillering.
Intervention effect Deeper water reduced rice tiller number at tillering.
Intervention effect High water temperature arrested young panicle development and internode elongation.
Intervention effect Low water temperature arrested young panicle development and internode elongation.
Intervention effect High water temperature induced late emerging tillers.
Intervention effect Low water temperature induced late emerging tillers.
Intervention effect High temperature killed young panicles inside tillers.
Intervention effect High water temperature decreased rice yield components and yield.
Association Temperature effects differed with young panicle developmental stage and water depth.
Association At young panicle formation temperature damage was severe at every water depth and unrelated to depth, especially at high temperature.
Association At booting, shallow water caused slight temperature damage and deeper water increased damage.
Observation All young panicles remained below water at every depth during young panicle formation.
Observation At booting, most young panicles were above water at 2 cm depth.
Association At booting, the number of submerged young panicles increased as water deepened.
Mechanism Differences in panicle submergence mainly explain stage differences in temperature damage under normal water depth.

Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Close planting decreased soybean lodging.

Taxon: soybeanGlycine maxt0
Treatment: close plantinge0
Outcome: loadginge0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“These results indicate that close planting may increase in seed yield and plant height in both seasons, and decrease in loadging.”
✓ located verbatim in the source · abstract, characters 919–1048

t0
“soybean”
✓ located verbatim in the source · title, characters 61–68

Title

The effect of plant spacing on several agronomic traits of a soybean variety under the tropical environment

Shin-Han Kwon; Nguyen H. Quyen The Korean Journal of Crop Science 1969

Other claims from this paper (13)

Association Row width significantly affected soybean seed yield in both years.
Association Row width did not yield significant differences in height, lodging, maturity, branch number, or pod number.
Association Within-row spacing significantly affected all studied soybean traits.
Association Row width and within-row spacing interacted for seed yield and height in 1967.
Intervention effect Close planting increased soybean seed yield.
Intervention effect Close planting increased soybean height.
Observation Closest spacing gave the maximum soybean plant height.
Observation Closest spacing gave the minimum soybean lodging index.
Observation Closest spacing produced the highest seed yield in dry and rainy seasons.
Recommendation The authors recommend 30 cm by 5cm spacing for late planting.
Recommendation The authors suggest 40cm by 5cm spacing in the rainy season.
Recommendation The authors recommend about 20 seeds per meter of row for drilling.
Intervention effect Close planting may reduce weeds and surface soil erosion.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Yield, height and number of branches decreased in mixtures compared with pure stands in set 2 in 1964.

Taxon: soybeansGlycine maxe0
Material: set 2e6
Treatment: mixturese6
Outcome: yield, height, number of branchese6
Direction: decreasee6
Comparator: pure standse6

Verbatim

e0
“Intra‐row intergenotypic competition among two sets of three soybeans ( Glycine max L. Merrill) genotypes”
✓ located verbatim in the source · abstract, characters 0–105

e6
“In set 2, competition effects were non‐additive in 1964, a decrease in yield, height, number of branches, nodes and pods per plant occurring in mixtures as compared with pure stands”
✓ located verbatim in the source · abstract, characters 559–740

Title

Effect of Plant Spacing Within a Row on the Competitive Ability of Soybean Genotypes

C. S. Lin; J. H. Torrie Crop Science 1968. doi:10.2135/cropsci1968.0011183x000800050023x

Other claims from this paper (14)

“yield decrease”

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