Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ozone decreased tuber dry matter and reducing sugar content.

Taxon: potatoSolanum tuberosume0
Treatment: Ozonee0
Outcome: percent dry matter and reducing sugar contente0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Ozone also induced a decrease in the percent dry matter and reducing sugar content of potato tubers”
✓ located verbatim in the source · abstract, characters 1161–1260

Title

Effects of sulfur dioxide and ozone on yield and quality of potatoes: Final report

Eva J. Pell; N.S. Pearson; C. Vinten‐Johansen; et al. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1989

Other claims from this paper (9)

Method / resource Both pollutant monitoring systems controlled gases well.
Method / resource Orifices cost less and needed less maintenance than solenoid valves.
Intervention effect Ozone caused a linear yield reduction.
Intervention effect Ozone reduced weight and number of tubers over 6.35 cm.
Observation Ozone effects on smaller tuber number and weight were generally undetected.
Intervention effect Sulfur dioxide affected Grade One tuber number in both years.
Intervention effect Sulfur dioxide affected dry matter and sucrose content in 1986.
Observation Sulfur dioxide doses had stimulatory effects with quadratic response curves.
Observation Ozone and sulfur dioxide showed no important interaction.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Dry matter accumulated in roots with a lower sucrose concentration is proposed to explain the decrease in sucrose concentration under higher N levels.

Taxon: SugarbeetBeta vulgaris subsp. vulgarise0
Outcome: sucrose concentratione6
Qualifier: dry matter produced and accumulated in the rootse6

Verbatim

e0
“Sugarbeet ( Beta vulgaris L.) root quality has been steadily decreasing”
✓ located verbatim in the source · abstract, characters 9–80

e6
“dry matter produced and accumulated in the roots having a decreased sucrose concentration”
✓ located verbatim in the source · abstract, characters 1522–1611

Title

Effect of Time and Amount of Nitrogen Uptake on Sugarbeet Growth and Yield¹

J. N. Carter; D. J. Traveller Agronomy Journal 1981. doi:10.2134/agronj1981.00021962007300040023x

Other claims from this paper (12)

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Cultivar S-83 decreased IVDDM less rapidly with advancing age than the other cultivars.

Taxon: Cynodon dactylonCynodon dactylone0
Material: S‐83e1
Outcome: IVDDMe1
Direction: decreasee1
Comparator: the other cultivarse1

Verbatim

e0
“Cynodon dactylon (L.) Pers.”
✓ located verbatim in the source · abstract, characters 41–68

e1
“One cultivar (S‐83) tended to increase in yield more rapidly and to decrease in IVDDM less rapidly with advancing age than the other cultivars”
✓ located verbatim in the source · abstract, characters 1316–1458

Title

Influence of Harvest Frequency and Season on Bermudagrass Cultivar Yield and Forage Quality¹

E. C. Holt; B. E. Conrad Agronomy Journal 1986. doi:10.2134/agronj1986.00021962007800030007x

Other claims from this paper (14)

Observation Coastal produced significantly more forage than the other cultivars.
Observation Coastal had the lowest in vitro dry matter digestibility of the cultivars.
Intervention effect Total annual forage yield increased by 0.15 Mg ha 1 for each day of advancing age at harvest beyond 14 days.
Intervention effect Total yields were 58% higher when harvested every 56 days than when harvested every 14 days.
Intervention effect 56-day-old forage had 89 g kg-1 less digestibility than 14-day-old forage.
Intervention effect 56-day-old forage had 180 g kg-1 less leaf content than 14-day-old forage.
Association Leafiness is closely correlated with age of forage at harvest.
Association Leafiness is not correlated with IVDDM within specified ages.
Observation Forage IVDDM declined from spring to early summer, independent of age at harvest.
Observation Young forage increased in IVDDM after midsummer.
Recommendation Cultivars of bermudagrass can be selected for higher forage digestibilities.
Association The IVDDM of forage declined by 2 g kg 1 of dry matter for each day of advancing age between 14 and 56 days.
Observation Cultivar S-83 increased yield more rapidly with advancing age than the other cultivars.
Observation Cultivars with higher digestibility follow the Coastal pattern of declining digestibility with increasing age and advancing season.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Protein nitrogen extractability decreased linearly with age.

Taxon: winged beanPsophocarpus tetragonolobust0
Outcome: protein nitrogen extractabilitye0
Direction: decreasee0

Verbatim

e0
“A linear decrease with age was noted for the total and protein nitrogen extractability of this crop whereas the nitrogen percentage in dry matter of leaves and the extractable leaf protein yield gave a quadratic response.”
✓ located verbatim in the source · abstract, characters 308–529

t0
“winged bean”
✓ located verbatim in the source · title, characters 70–81

Title

Studies on yield, extracted leaf protein and deproteinised extract of winged bean grown as a biennial crop

Anjana Banerjee; Sunanda Chanda; Bibhas C. Sasmal; et al. Journal of the Science of Food and Agriculture 1986. doi:10.1002/jsfa.2740370811

Other claims from this paper (10)

Observation Dry top yield increased curvilinearly with time following logistic growth.
Observation Total nitrogen extractability decreased linearly with age.
Observation Leaf dry matter nitrogen percentage showed a quadratic response with age.
Observation Extractable leaf protein yield showed a quadratic response with age.
Observation Extracted leaf proteins contained 61.9–85.3% protein.
Observation Extracted leaf proteins contained 4.6–12.8% fat.
Observation Extracted leaf proteins contained 0.2–4.6% ash.
Observation Extracted leaf proteins contained 0.5–2.7% crude fibre.
Observation Extracted leaf proteins contained 34.2–43.7 mg 100 g −1 β‐carotene.
Observation Deproteinised juice was suitable as a microbial growth medium.

Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Increased weather variability in the mid 1970s was associated with decreased yields in many areas.

Taxon: CORNZea mays subsp. mayst0
Outcome: yieldse0
Direction: decreasee0
Qualifier: in the mid-1970se0
Setting: many arease0

Verbatim

e0
“A decrease in yields and an increase in yield fluctuations observed in many areas in the mid-1970s appeared to be related to increased weather variability”
✓ located verbatim in the source · abstract, characters 1344–1498

t0
“GRAIN CORN”
✓ located verbatim in the source · title, characters 25–35

Title

A GEOGRAPHIC ANALYSIS OF GRAIN CORN YIELD TRENDS IN ONTARIO USING A COMPUTERIZED LAND INFORMATION BASE

J. DUMANSKI; A. BOOTSMA; V. KIRKWOOD Canadian Journal of Soil Science 1986. doi:10.4141/cjss86-049

Other claims from this paper (13)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Three monthly leaf harvest reduced fresh root yield by 15–32%.

Taxon: cassavaManihot esculentae1
Treatment: 3-month intervalse0
Outcome: total fresh tuberous root yieldse0
Direction: decreasee0
Value: 15–32%e0
Comparator: plants whose leaves were not harvestede2

Verbatim

e0
“decrease in total fresh tuberous root yields of 56–76%, 34–62% and 15–32% when leaves were harvested at 1-, 2- and 3-month intervals respectively”
✓ located verbatim in the source · abstract, characters 240–385

e1
“cassava ( Manihot esculenta Crantz)”
✓ located verbatim in the source · abstract, characters 34–69

e2
“Compared with plants whose leaves were not harvested”
✓ located verbatim in the source · abstract, characters 174–226

Title

Effects of Harvesting Frequency on Leaf and Root Yields of Cassava

M. T. Dahniya; C. O. Oputa; S. K. Hahn Experimental Agriculture 1981. doi:10.1017/s0014479700011273

Other claims from this paper (6)

Intervention effect Isunikankiyan fresh leaf yield was not significantly affected by harvesting frequency.
Intervention effect TMS 30211 leaf yield responded to harvesting frequency.
Intervention effect Monthly leaf harvest reduced fresh root yield by 56–76%.
Intervention effect Two monthly leaf harvest reduced fresh root yield by 34–62%.
Association The two cassava varieties differed in their root yield response to leaf harvesting.
Recommendation The authors recommend harvesting top leaves every two or three months.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Phosphorus deficiency slowed ontogeny similarly in both cultivars.

Taxon: WHITE CLOVERTrifolium repenst0
Treatment: P deficiencye0
Outcome: rate of ontogenye0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“the decrease in the rate of ontogeny under P deficiency”
✓ located verbatim in the source · abstract, characters 465–520

e1
“was similar for both cultivars”
✓ located verbatim in the source · abstract, characters 427–457

t0
“WHITE CLOVER”
✓ located verbatim in the source · title, characters 99–111

Title

RESPONSE OF THE ONTOGENY, YIELD, AND PHOSPHORUS NUTRITION OF GRASSLANDS TAHORA AND GRASSLANDS HUlA WHITE CLOVER TO PHOSPHORUS

Peter Kemp 1989

Other claims from this paper (5)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Summer herbicides were associated with decreased alfalfa yields.

Taxon: alfalfaMedicago sativae0
Treatment: summer herbicidese0
Outcome: alfalfa yieldse0
Direction: decreasee0

Verbatim

e0
“application of summer herbicides to control grassy weeds was associated with an increase in adult abundance and subsequent decrease in alfalfa yields”
✓ located verbatim in the source · abstract, characters 642–791

t1
“Potato Leafhopper”
✓ located verbatim in the source · title, characters 11–28

Title

Effects of Potato Leafhopper (Homoptera: Cicadellidae) and Weed Control on Alfalfa Yield and Quality

H. Oloumi-Sadeghi; L. R. Zavaleta; G. Kapusta; et al. Journal of Economic Entomology 1989. doi:10.1093/jee/82.3.923

Other claims from this paper (7)

Intervention effect Insecticides reduced adult and nymph leafhopper abundance and intensity.
Intervention effect Insecticides increased alfalfa yield and leaf and forage protein.
Intervention effect Winter herbicides did not influence potato leafhoppers.
Intervention effect Winter herbicides reduced alfalfa yields.
Association Summer herbicides were associated with increased adult leafhopper abundance.
Observation Summer weeds moderated leafhopper abundance and reduced alfalfa damage.
Recommendation The authors emphasize leafhopper control over weed control in established alfalfa.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Stubble burning did not reduce foot rot incidence or severity.

Taxon: wheatTriticum aestivumt0
Treatment: Stubble burninge0
Interactor: Pseudocercosporella herpotrichoidesOculimacula yallundaee0pathogen
Outcome: foot rot ( Pseudocercosporella herpotrichoides ) incidence or severitye0
Direction: did not decreasee0

Not reportedComparator

Verbatim

e0
“Stubble burning did not decrease foot rot ( Pseudocercosporella herpotrichoides ) incidence or severity”
✓ located verbatim in the source · abstract, characters 1243–1346