Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low root temperature decreased photosynthetic utilization of internal CO2, carboxylation efficiency and apparent quantum yield.

Taxon: Engelmann sprucePicea engelmanniie0
Treatment: Low root temperaturee3
Outcome: photosynthetic utilization of internal CO(2), carboxylation efficiency and apparent quantum yielde3
Direction: decreasee3

Not reportedComparator

Verbatim

e0
“potted Engelmann spruce (Picea engelmannii Parry ex Engelm.) seedlings”
✓ located verbatim in the source · abstract, characters 113–183

e3
“Low root temperature also caused a decrease in photosynthetic utilization of internal CO(2), carboxylation efficiency and apparent quantum yield, and it was concluded that the decrease in photosynthetic rate was caused primarily by nonstomatal limitations”
✓ located verbatim in the source · abstract, characters 542–797

Title

Effect of low root temperature on net photosynthesis, stomatal conductance and carbohydrate concentration in Engelmann spruce (Picea engelmannii Parry ex Engelm.) seedlings

E. H. Delucia Tree Physiology 1986. doi:10.1093/treephys/2.1-2-3.143

Other claims from this paper (8)

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

First-cut dry matter yield rose significantly as irrigation interval shortened.

Taxon: forage sorghume0
Treatment: decrease in irrigation intervale0
Outcome: dry matter yield of the first cutse0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“dry matter yield of the first cuts of forage sorghum increased significantly with increase in N‐level, with decrease in irrigation interval”
✓ located verbatim in the source · abstract, characters 721–860

Title

Interrelationships of Irrigation Frequency, Urea Nitrogen, and Gypsum on Forage Sorghum Growth on a Saline Sodic Clay Soil¹

M. A. Mustafa; E. A. Abdelmagid Agronomy Journal 1982. doi:10.2134/agronj1982.00021962007400030012x

Other claims from this paper (17)

Intervention effect First-cut dry matter yield rose significantly with nitrogen level.
Intervention effect Gypsum significantly increased first-cut dry matter yield.
Observation Reduced irrigation frequency had a greater effect than 3N fertilization.
Observation Gypsum benefit was 5% at the seven-day irrigation interval.
Intervention effect Combined treatment increased 1978 yield from 1.84 to 6.12 tonnes/ha.
Intervention effect Combined treatment increased 1979 yield from 3.20 to 7.23 tonnes/ha.
Intervention effect Height and leaf area index increased with nitrogen fertilization.
Intervention effect Height and leaf area index increased with gypsum.
Intervention effect Height and leaf area index increased as irrigation interval fell from 15 to seven days.
Intervention effect Gypsum alone significantly increased germination percentage.
Association Yield was significantly correlated with leaf area index and plant height.
Association Yield was not correlated with germination percentage.
Association Height and leaf area index accounted for about 87% of yield variability.
Observation Second-cut yields responded similarly but were lower than first-cut yields.
Observation Seasonal water use averaged about 1.02 times pan evaporation.
Intervention effect Combined treatment raised 1978 water-use efficiency from 15.6 to 43.9 kg/ha-cm.
Intervention effect Combined treatment raised 1979 water-use efficiency from 19.1 to 51.2 kg/ha-cm.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The fast oxygen-yield phase accompanied decreased fluorescence.

Taxon: HIGHER PLANTSEmbryophytat0
Outcome: fluorescencee0
Direction: decreasee0
Qualifier: fast phase of the increase in oxygen yielde0

Verbatim

t0
“HIGHER PLANTS”
✓ located verbatim in the source · title, characters 25–38

e0
“The fast phase of the increase in oxygen yield was coupled to a decrease of fluorescence”
✓ located verbatim in the source · abstract, characters 426–514

Title

SHORT‐TERM ADAPTATION OF HIGHER PLANTS TO CHANGING LIGHT INTENSITIES AND EVIDENCE FOR THE INVOLVEMENT OF PHOSPHORYLATION OF THE LIGHT HARVESTING CHLOROPHYLLalbPROTEIN COMPLEX OF PHOTOSYSTEM II

Holger Dau; Ora Canaani Photochemistry and Photobiology 1984. doi:10.1111/j.1751-1097.1984.tb08397.x

Other claims from this paper (12)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Rice grain yield decreased linearly by 21 kg/ha per bearded sprangletop plant per square meter.

Taxon: riceOryza sativae0
Interactor: Leptochloa fascicularis (Lam.) Graye1weed
Outcome: rice grain yielde0
Direction: decreasee0
Value: 21 kg/hae0

Verbatim

e0
“There was a linear decrease in rice grain yield of 21 kg/ha for each bearded sprangletop plant per square meter”
✓ located verbatim in the source · abstract, characters 285–396

e1
“Leptochloa fascicularis (Lam.) Gray”
✓ located verbatim in the source · abstract, characters 188–223

Title

Competition of Bearded Sprangletop (Leptochloa fascicularis) with Rice (Oryza sativa)

Roy J. Smith Weed Science 1983. doi:10.1017/s0043174500068661

Other claims from this paper (8)

Intervention effect Eleven bearded sprangletop plants per square meter reduced rice yield by 9%.
Intervention effect Twenty-two bearded sprangletop plants per square meter reduced rice yield by 18%.
Intervention effect Fifty-four bearded sprangletop plants per square meter reduced rice yield by 20%.
Intervention effect A density of 108 bearded sprangletop plants per square meter reduced rice yield by 36%.
Intervention effect A weed density of 54 plants per square meter reduced head-rice yield.
Intervention effect A weed density of 108 plants per square meter reduced head-rice yield.
Intervention effect A weed density of 108 plants per square meter reduced rice seed germination.
Association Bearded sprangletop panicles per weed plant declined as weed density increased.

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Selecting any of four minerals at high concentration would increase the others and decrease sodium.

Taxon: Setaria sphacelataSetaria sphacelatat0
Outcome: selection for high concentration of any of these elementse0

Verbatim

e0
“selection for high concentration of any of these elements would result in an increase in the others, but a decrease in sodium”
✓ located verbatim in the source · abstract, characters 2015–2140

t0
“Setaria sphacelata”
✓ located verbatim in the source · title, characters 38–56

Title

Genetic analysis in the pasture grass Setaria sphacelata . II. Chemical composition, digestibility and correlations with yield

RA Bray; JB Hacker Australian Journal of Agricultural Research 1981. doi:10.1071/ar9810311

Other claims from this paper (15)

Observation Nitrogen, phosphorus, magnesium and calcium concentrations tended to be low in summer.
Observation Potassium concentration fell over the two years.
Observation Magnesium, calcium and sodium increased.
Observation Genetic variance for digestibility occurred at only two of 14 harvests.
Observation Additive genetic variance was significant and generally consistent for five elements.
Observation Family interactions with season and year were small.
Observation Additive variance effects for nine elements were erratic.
Recommendation Higher or lower concentrations of those elements were unlikely to be selected successfully.
Association Nitrogen, potassium, calcium, magnesium and sodium each correlated negatively with dry matter yield.
Recommendation Selecting higher mineral concentrations was predicted to reduce yield, possibly except potassium.
Association Sodium was genetically negatively correlated with nitrogen, potassium, calcium and magnesium.
Association Nitrogen, potassium, calcium and magnesium were mutually positively correlated.
Observation Genetic variation was detected in two mineral ratios.
Recommendation Breeding manipulation of the ratios was not warranted.
Recommendation The examples indicated potential to breed tropical forages for mineral ratios.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Nematode-related sugarcane yield loss in West Africa was largely due to fewer stalks.

Taxon: sugarcanee0
Interactor: nematodesNematodae0pest
Outcome: number of stalkse0
Direction: decreasee0
Setting: West Africae0

Verbatim

e0
“In West Africa the loss in yield of the sugarcane plant trop caused by nematodes is due largely to a decrease in the number of stalks”
✓ located verbatim in the source · abstract, characters 9–142

Title

Studies on the relationship between nematodes and sugarcane in South and West Africa: plant cane

Patrice Cadet; V. W. Spaull Revue de nématologie 1985

Other claims from this paper (5)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Foliar application of Mo tended to decrease oil and nitrogen content of sunflower seeds.

Taxon: SunflowerHelianthus annuust0
Treatment: foliar application of Moe3
Outcome: Oil and nitrogen content of sunflower seedse3
Direction: decreasee3

Not reportedComparator

Verbatim

t0
“Chemical Composition of Sunflower”
✓ located verbatim in the source · title, characters 105–138

e3
“Oil and nitrogen content of sunflower seeds were also more due to soil as well as foliar application of N and K, but foliar application of Mo tended to decrease them”
✓ located verbatim in the source · abstract, characters 191–356

Title

Effect of Soil and Foliar Application of Nitrogen, Potassium and Molybdenum on Oil Content and Yield and Chemical Composition of Sunflower

R.C. Samul; P. Bhattacharyya Journal of the Indian Society of Soil Science 1980

Other claims from this paper (9)

Intervention effect Soil application of nitrogen, potassium and molybdenum significantly increased oil yield and nitrogen uptake of sunflower.
Intervention effect Foliar application of N and K tended to increase oil yield of sunflower.
Intervention effect Soil and foliar application of N and K were associated with higher oil and nitrogen content of sunflower seeds.
Intervention effect Soil application of N depressed K content in seed and stalk of sunflower.
Intervention effect Foliar treatment of N increased K content of sunflower seed and stalk.
Intervention effect Soil application of K and Mo significantly increased total K uptake of sunflower over soil application of K without Mo.
Intervention effect Soil application of K and Mo significantly increased oil yield, total N and K uptake by seed of sunflower.
Intervention effect Foliar application of K along with Mo significantly depressed oil yield of sunflower relative to foliar application of K without Mo.
Intervention effect Foliar application of K along with Mo significantly depressed total N and K uptake of sunflower relative to foliar application of K without Mo.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The decline in Vernal yield share was greater under six than four cuts.

Taxon: AlfalfaMedicago sativat0
Treatment: 6-cut swarde0
Outcome: rate of decreasee0
Direction: greatere0
Comparator: 4-cut swarde0

Verbatim

e0
“The rate of decrease was greater in the 6-cut sward than in the 4-cut sward”
✓ located verbatim in the source · abstract, characters 569–644

t0
“Alfalfa”
✓ located verbatim in the source · title, characters 80–87

Title

Effect of cutting frequency on the change of components in a mixed sward of two Alfalfa cultivars.

Yasuo TAKASAKI; Hisakazu OIZUMI; Hiroshi NOJIMA Japanese Journal of Crop Science 1986. doi:10.1626/jcs.55.35

Other claims from this paper (9)

Observation The percentage of Vernal in mixed-sward yield fell over cuts.
Observation Plant density declined over cuts in pure and mixed stands.
Intervention effect Plant density declined more under six than four cuts.
Observation The reduction in mixed-stand plant counts was mainly Vernal loss.
Association Vernal survival was lower in mixed than pure stands.
Association Moapa survival was higher in mixed than pure stands.
Association Individual Moapa plants yielded more than Vernal plants in mixed stands at every cut.
Observation The authors inferred that late alfalfa types would become less numerous over time.
Association The authors inferred that more frequent cutting would accelerate that shift.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Each 1 g increase in weed biomass was associated with about 3 g less crop yield.

Taxon: chinese cabbageBrassica rapa subsp. pekinensise1
Interactor: weede0weed
Outcome: cropse0
Direction: decreasee0
Value: approximately 3gme0

Verbatim

e0
“the existance of weed will decrease the crops by approximately 3gm in every 1gm of increasing weed volume”
✓ located verbatim in the source · abstract, characters 586–691

e1
“chinese cabbage was directly planted”
✓ located verbatim in the source · abstract, characters 93–129

Title

On the Weeding Effect of Cultivating and Weeding Operation at Vegetable Cropping

Osamu SAKAUE; Hisaharu KURATA Japanese Journal of Farm Work Research 1985. doi:10.4035/jsfwr.1985.55_5

Other claims from this paper (6)

Intervention effect Mechanical weeding reduced remaining weed biomass.
Intervention effect Mechanical weeding increased cabbage harvest products.
Observation Potential crop yield without weeds was about 10 kg per 0.6 m2.
Intervention effect Late rotary cultivation damaged cabbage plants.
Intervention effect More than four late weeding operations impaired cabbage growth.
Intervention effect The method controlled winter broad creeping weeds more effectively than summer narrow upright weeds.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cytokinin at 4/1000 reversed the glyphosate-induced decrease in pod number, pod dry weight and seed yield per plant and per ha of faba bean.

Taxon: Faba BeanVicia fabat0
Treatment: cytokinin at 4/1000e0
Outcome: number and dry weight of pods, seed yield per plant and per hae0
Direction: reversede0
Comparator: glyphosate herbicidee0

Verbatim

e0
“cytokinin at 4/1000, tryptophan at both concentrations, as well as, phenylalanine at 500 ppm, reversed the phytotoxic effect of the glyphosate herbicide on decreasing the number and dry weight of pods, seed yield per plant and per ha”
✓ located verbatim in the source · abstract, characters 1018–1251

t0
“Faba Bean”
✓ located verbatim in the source · title, characters 12–21

Title

Recovery of Faba Bean (Vicia faba L.) Plants as Affected by Glyphosate

Sh. A. Shaban; A. H. El‐Hattab; Esmat A. Hassan; et al. Journal of Agronomy and Crop Science 1987. doi:10.1111/j.1439-037x.1987.tb00277.x

Other claims from this paper (8)

Intervention effect Glyphosate at the two higher doses caused phytotoxic symptoms and reduced all faba bean plant characters except the number of branches per plant.
Intervention effect GA3 alone or mixed with cytokinin reversed the glyphosate-induced decrease in faba bean plant height.
Intervention effect Cytokinin at 4/1000 reversed the glyphosate-induced decrease in dry weight per plant of faba bean.
Intervention effect Phenylalanine at both levels reversed the glyphosate-induced decrease in dry weight per plant of faba bean.
Intervention effect Tryptophan at both levels reversed the glyphosate-induced decrease in dry weight per plant of faba bean.
Intervention effect GA3 at 50 ppm reversed the glyphosate-induced decrease in dry weight per plant of faba bean.
Intervention effect Tryptophan at both concentrations reversed the glyphosate-induced decrease in pod number, pod dry weight and seed yield per plant and per ha of faba bean.
Intervention effect Phenylalanine at 500 ppm reversed the glyphosate-induced decrease in pod number, pod dry weight and seed yield per plant and per ha of faba bean.

“yield decrease”

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