Search claims · PlantClaims

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Low pre-anthesis rainfall and heat at early milk stage made grain filling difficult despite sufficient post-anthesis rainfall.

Taxon: barleyHordeum vulgaret0
Outcome: grain filling difficulte0
Qualifier: Low rainfall in the pre‐anthesis period and air temperatures above 30°C in the early milk stage of the graine0

Verbatim

e0
“Low rainfall in the pre‐anthesis period and air temperatures above 30°C in the early milk stage of the grain made grain filling difficult, even when the rainfall was sufficient in the post‐anthesis period”
✓ located verbatim in the source · abstract, characters 1178–1382

t0
“winter barley”
✓ located verbatim in the source · title, characters 27–40

Title

Nitrogen use efficiency by winter barley under different climatic conditions

R. Gonzalez Ponce; M. L. Salas; S. C. Mason Journal of Plant Nutrition 1993. doi:10.1080/01904169309364610

Other claims from this paper (12)

Association Rain distribution, heat and fertilizer rate changed straw, grain and nitrogen proportions in barley.
Observation Under specified rainfall and heat, nitrogen translocation to grain was high.
Intervention effect Under those conditions, grain yield responded positively to fertilizer up to 118 N kg/ha.
Intervention effect Under those conditions, grain nitrogen content responded positively up to 118 N kg/ha.
Intervention effect Above that rate, barley grain yield decreased.
Intervention effect Above that rate, grain nitrogen content continued to increase.
Intervention effect With optimum moisture and mild temperatures, grain yield increased with fertilizer up to 131 kg N/ha.
Intervention effect With optimum moisture and mild temperatures, grain nitrogen content did not vary with fertilizer rate.
Observation Nitrogen translocation efficiency was somewhat lower under optimum moisture than under low post-anthesis rainfall.
Intervention effect Under those dry and hot conditions, fertilizer did not increase grain yield.
Intervention effect Under those dry and hot conditions, grain nitrogen content decreased as fertilizer rate rose.
Intervention effect Under those dry and hot conditions, nitrogen translocation efficiency decreased as fertilizer rate rose.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

P-deficient conditions reportedly produced the highest cluster-root number, 24 ± 4, although the text also calls it comparatively lower than under N and N/P deficiency.

Taxon: Grevillea robustaGrevillea robustat0
Treatment: P-deficient conditionse0
Outcome: number of cluster rootse0
Direction: higheste0
Value: 24 ± 4e0
Qualifier: comparatively lowere0
Comparator: N- and N/P-deficient conditionse0

Verbatim

e0
“P-deficient conditions produced the highest number of cluster roots (24 ± 4) which was comparatively lower than those of N- and N/P-deficient conditions”
✓ located verbatim in the source · abstract, characters 1007–1159

t0
“Grevillea robusta”
✓ located verbatim in the source · title, characters 60–77

Title

Root growth dynamics, nutrient uptake and use efficiency of Grevillea robusta grown under nitrogen and phosphorus deficiency

A. G. U. N. Senevirathna; K. G. G. M. Wickramasinghe; D. M. S. B. Dissanayaka; et al. Journal of Plant Nutrition 2024. doi:10.1080/01904167.2024.2369065

Other claims from this paper (7)

Mechanism P deficiency was interpreted as the primary influence on cluster-root formation.
Intervention effect N limitation reduced N uptake.
Intervention effect P limitation reduced P uptake.
Intervention effect N use efficiency in biomass formation increased significantly when uptake decreased under N limitation.
Intervention effect P use efficiency in biomass formation increased significantly when uptake decreased under P limitation.
Intervention effect P remobilization efficiency increased significantly under N deficiency, indicating efficient internal P use.
Intervention effect P remobilization efficiency increased significantly under combined N/P deficiency, indicating efficient internal P use.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing N-urea rates delayed lowland rice phenology.

Taxon: lowland ricee0
Treatment: increasing application rates of N-ureae0
Outcome: phenologye0
Direction: delayede0
Setting: inland valley, Federal University of Agriculture, Abeokutae1

Not reportedComparator

Verbatim

e0
“Increased N uptake and delayed phenology were observed with increasing application rates of N-urea, while grain yield of lowland rice sown at 30 and 60 kg N ha−1 were similar.”
✓ located verbatim in the source · abstract, characters 869–1044

e1
“Field experiments were conducted in the inland valley, Federal University of Agriculture, Abeokuta,”
✓ located verbatim in the source · abstract, characters 274–373

Title

Varietal variations of lowland rice in response to N-urea rates: implications on nitrogen use efficiency and crop performance in a derived savanna

O. A. Balogun; O. S. Sakariyawo; M. O. Bakare; et al. Journal of Plant Nutrition 2024. doi:10.1080/01904167.2024.2378225

Other claims from this paper (9)

Intervention effect Increasing N-urea rates increased nitrogen uptake in lowland rice.
Intervention effect Grain yield was similar at 30 and 60 kg N ha−1.
Observation NERICA L-34 had significantly higher PFPN and Nitrogen Harvest Index than other cultivars.
Observation NERICA L-34 had higher sink strength than other cultivars.
Observation NERICA L-34 showed a similar higher-grain-yield pattern relative to other cultivars.
Recommendation The authors suggest 30 kg N ha−1 can sustain reproductive growth in derived Savanna rice with higher nitrogen efficiencies.
Mechanism The authors attribute sustained reproductive growth at 30 kg N ha−1 to prolonged phenology and nitrogen uptake.
Intervention effect Rice at the recommended low rate had higher PFPN, agronomic N efficiency and recovery N efficiency.
Observation Root growth and activities were similar in the reported rice comparisons.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher temperature decreased stem height and diameter of canola relative to 22/18 °C.

Taxon: canolaBrassica napus var. napuse3
Treatment: Higher temperaturese1
Outcome: stem height and diametere1
Direction: decreasede1
Comparator: 22/18 °Ce2

Verbatim

e1
“Higher temperatures decreased net CO2 assimilation (AN), water use efficiency, effective quantum yield of photosystem II, nonphotochemical quenching (qNP), chlorophyll, flavonoids, stem height and diameter”
✓ located verbatim in the source · abstract, characters 998–1203

e2
“two temperature regimes (22/18 °C and 28/24 °C, 16 h light/8 h dark)”
✓ located verbatim in the source · abstract, characters 552–620

e3
“growth and physiological traits of canola (Brassica napus)”
✓ located verbatim in the source · abstract, characters 468–526

Title

Supplemental nitrogen alleviates the negative effects of higher temperature on the vegetative growth of canola regardless of carbon dioxide concentration

Cameryn C. Evans; Mirwais M. Qaderi Plant Stress 2024. doi:10.1016/j.stress.2024.100521

Other claims from this paper (11)

Intervention effect Higher temperature decreased AN, water use efficiency and effective quantum yield of PSII in canola relative to 22/18 °C.
Intervention effect Higher temperature decreased qNP, chlorophyll and flavonoids in canola relative to 22/18 °C.
Intervention effect Higher temperature decreased leaf area and number and dry mass of canola relative to 22/18 °C.
Intervention effect Higher temperature decreased beta, gamma and delta tocopherols in canola relative to 22/18 °C.
Intervention effect Higher temperature increased stomatal conductance of canola relative to 22/18 °C.
Intervention effect Elevated CO2 increased net CO2 assimilation, nonphotochemical quenching and leaf area ratio in canola.
Intervention effect Elevated CO2 decreased stomatal conductance of canola.
Intervention effect Supplemental urea nitrogen increased stomatal conductance, chlorophyll and NBI of canola under temperature stress relative to no supplement.
Intervention effect Supplemental urea nitrogen increased stem height and diameter and leaf area of canola under temperature stress.
Intervention effect Supplemental urea nitrogen increased growth rate and dry mass of canola under temperature stress.
Recommendation N supplementation may be used to alleviate environmental stress on canola under climate change.

Associationobservedoriginal resultmeasured

Claim · model-written summary

BH 902 took the most days to flag leaf emergence, spike initiation, and maturity.

Taxon: barleyHordeum vulgaret0
Material: BH 902e0
Outcome: number of days for flag leaf emergence, spike initiation and physiological maturitye0
Direction: maximume0
Comparator: BH 946, BH 885 and DWRB 101e0

Verbatim

e0
“Variety BH 902 recorded significantly higher grain yield and took maximum number of days for flag leaf emergence, spike initiation and physiological maturity than variety BH 946, BH 885 and DWRB 101, respectively.”
✓ located verbatim in the source · abstract, characters 869–1082

t0
“barley”
✓ located verbatim in the source · title, characters 15–21

Title

Effect of malt barley varieties and nitrogen levels on crop phenology, PAR interception, GDD, RUE and thermal use efficiency under saline water irrigation

Amandeep Kaur; Satyavan .; Ramandeep Kaur; et al. Crop Research 2022. doi:10.31830/2454-1761.2022.cr-814

Other claims from this paper (4)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

The N-efficient genotype D4-15 had more root tips, larger root surface and larger root volume than D2-1.

Taxon: B. napusBrassica napuse0
Material: D4-15e1
Outcome: root tips, larger root surface and root volumee3
Direction: moree3
Comparator: D2-1e2

Verbatim

e0
“field trials and hydroponic experiments using two B. napus genotypes with contrasting NUE”
✓ located verbatim in the source · abstract, characters 322–411

e1
“the N-efficient genotype (D4-15) had greater N uptake and utilization efficiencies”
✓ located verbatim in the source · abstract, characters 437–519

e2
“than the N-inefficient genotype (D2-1)”
✓ located verbatim in the source · abstract, characters 628–666

e3
“more root tips, larger root surface and root volume”
✓ located verbatim in the source · abstract, characters 521–572

Title

Comparative genome and transcriptome analysis unravels key factors of nitrogen use efficiency in Brassica napus L

Quan Li; Guangda Ding; Ningmei Yang; et al. Plant Cell & Environment 2019. doi:10.1111/pce.13689

Other claims from this paper (7)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

More panicle fertilizer increasing seed-setting percentage.

Taxon: super hybrid rice variety Ganxin 688e1
Treatment: increase of panicle-fertilizer applicatione0
Outcome: seed-setting percentagee0
Direction: increasinge0

Not reportedComparator

Verbatim

e0
“A proper increase of panicle-fertilizer application had a good effect on prolonging the functional period of lower leaves,increasing the amount of dry matter of stems and leaf sheathes at heading stage,the total sink size and the sink capacity per unit area of leaves,the panicle-bearing tiller rate and seed-setting percentage,lessening demand of the sink for the dry matter in stems and sheathes as a result in a bette…” Show full quote
✓ located verbatim in the source · abstract, characters 695–1136

e1
“super hybrid rice variety Ganxin 688”
✓ located verbatim in the source · abstract, characters 110–146

Title

Effects of Nitrogen Application of Panicle Fertilizer on Source-Sink Characteristics and Nitrogen Fertilizer Use Efficiency of Super Hybrid Rice Ganxin 688

Xueming Tan Zajiao shuidao 2010

Other claims from this paper (19)

Intervention effect Increased late nitrogen application improved population quality.
Intervention effect Increased late nitrogen application improved source-sink relation.
Intervention effect Increased late nitrogen application improved leaf functions.
Intervention effect Increased late nitrogen application improved functional period of leaves.
Intervention effect Increased late nitrogen application improved nitrogen fertilizer use efficiency.
Intervention effect Added panicle fertilizer increased leaf area index(LAI) after heading.
Intervention effect Added panicle fertilizer increased chlorophyll content after heading.
Intervention effect Added panicle fertilizer slowed down decline rates after heading.
Intervention effect More panicle fertilizer prolonging functional period of lower leaves.
Intervention effect More panicle fertilizer increasing amount of dry matter of stems and leaf sheathes.
Intervention effect More panicle fertilizer increasing total sink size.
Intervention effect More panicle fertilizer increasing sink capacity per unit area of leaves.
Intervention effect More panicle fertilizer increasing panicle-bearing tiller rate.
Intervention effect More panicle fertilizer lessening demand of the sink for the dry matter in stems and sheathes.
Intervention effect More panicle fertilizer better lodging resistance.
Intervention effect A higher panicle fertilizer rate improve dry matter output of nitrogen.
Intervention effect A higher panicle fertilizer rate improve grain output of nitrogen.
Intervention effect A higher panicle fertilizer rate increase ratio of nitrogen absorption to application.
Intervention effect A higher panicle fertilizer rate increase total nitrogen accumulation amount.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

SOD and CAT were identified as contributors to stress tolerance and xylem development.

Taxon: C. bungeiCatalpa bungeie0 e1 e2 e3 t0
Gene: Superoxide dismutase (SOD) and catalase (CAT)e0 e1 e2 e3 t0
Outcome: stress tolerance and xylem developmente0 e1 e2 e3 t0

Verbatim

e0
“Superoxide dismutase (SOD) and catalase (CAT) largely contributes to stress tolerance and xylem development.”
✓ located verbatim in the source · abstract, characters 1599–1707

t0
“Catalpa bungei”
✓ located verbatim in the source · title, characters 88–102

e1
“C. bungei responded to FRD by sharply closing stomata, decreasing gas exchange rate and increasing leaf instantaneous water use efficiency ( WUE i ).”
✓ located verbatim in the source · abstract, characters 502–651

e2
“well-watered (WW), partial root-zone drought in horizontal direction (H-PRD) and in vertical direction (V-PRD), and full root-zone drought (FRD) were combined with nitrate-nitrogen (NN) and ammonium-nitrogen (AN) treatments.”
✓ located verbatim in the source · abstract, characters 277–501

e3
“Under V-PRD, WUE i in nitrate treatment was superior to that in ammonium treatment due to active stomata regulation by signaling network of nitric oxide (NO), Ca 2+ and ABA.”
✓ located verbatim in the source · abstract, characters 1186–1359

Title

Effects of nitrate- and ammonium- nitrogen on anatomical and physiological responses of Catalpa bungei under full and partial root-zone drought

Ting Xu; Zhiyong Wang; Ziye Wang; et al. BMC Plant Biology 2024. doi:10.1186/s12870-024-04874-3

Other claims from this paper (12)

Intervention effect Full root-zone drought sharply closed stomata and decreased gas exchange.
Intervention effect Full root-zone drought decreased gas exchange rate.
Intervention effect Full root-zone drought increased leaf instantaneous water use efficiency.
Intervention effect Full root-zone drought severely inhibited seedling growth and masked nitrogen-form effects.
Intervention effect Partial root-zone drought moderately inhibited stomatal conductance and gas exchange.
Intervention effect Vertical partial root-zone drought had superior water-use efficiency to horizontal drought.
Observation Vertical partial drought had higher ABA and active ABA pathway transcription.
Observation Vertical partial drought showed active transcription of ABA signaling genes.
Intervention effect Nitrate benefited antioxidant defense, stomatal regulation and water-use efficiency under drought.
Intervention effect Under vertical partial drought nitrate yielded superior water-use efficiency to ammonium.
Intervention effect Under full drought nitrate gave higher water-use efficiency through photosynthetic efficiency and defense.
Association Water and nitrogen form interacted significantly in wood xylem development.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Delaying sowing increased the duration of phenological stages and thermal units from 50% flowering to maturity in Indian mustard.

Taxon: Indian mustardBrassica junceae4
Treatment: successive delay in sowinge1
Outcome: duration of phenological stagese1
Direction: increasede1
Setting: Hisar,Haryanae4

Verbatim

e1
“Results revealed that duration of phenological stages andthermal unit during days to 50 % flowering to maturity increased with successive delay in sowing”
✓ located verbatim in the source · abstract, characters 469–622

e4
“Field experiment was conducted during rabi 2013-14 and 2014-15 to study the thermal requirement for Indian mustard at research farm, College of Agriculture, Hisar,Haryana”
✓ located verbatim in the source · abstract, characters 0–170

Title

Thermal requirements, heat use efficiency and plant responses of Indian mustard (Brassica Juncea) for different levels of nitrogen under different environments

P.KEERTHI; R.K.PANNU; RAJ SINGH; et al. Journal of Agrometeorology 2016. doi:10.54386/jam.v18i2.936

Other claims from this paper (5)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher temperature decreased leaf area and number and dry mass of canola relative to 22/18 °C.

Taxon: canolaBrassica napus var. napuse3
Treatment: Higher temperaturese1
Outcome: leaf area and number, dry masse1
Direction: decreasede1
Comparator: 22/18 °Ce2

Verbatim

e1
“Higher temperatures decreased net CO2 assimilation (AN), water use efficiency, effective quantum yield of photosystem II, nonphotochemical quenching (qNP), chlorophyll, flavonoids, stem height and diameter, leaf area and number, dry mass”
✓ located verbatim in the source · abstract, characters 998–1235

e2
“two temperature regimes (22/18 °C and 28/24 °C, 16 h light/8 h dark)”
✓ located verbatim in the source · abstract, characters 552–620

e3
“growth and physiological traits of canola (Brassica napus)”
✓ located verbatim in the source · abstract, characters 468–526

Title

Supplemental nitrogen alleviates the negative effects of higher temperature on the vegetative growth of canola regardless of carbon dioxide concentration

Cameryn C. Evans; Mirwais M. Qaderi Plant Stress 2024. doi:10.1016/j.stress.2024.100521

Other claims from this paper (11)

Intervention effect Higher temperature decreased AN, water use efficiency and effective quantum yield of PSII in canola relative to 22/18 °C.
Intervention effect Higher temperature decreased qNP, chlorophyll and flavonoids in canola relative to 22/18 °C.
Intervention effect Higher temperature decreased stem height and diameter of canola relative to 22/18 °C.
Intervention effect Higher temperature decreased beta, gamma and delta tocopherols in canola relative to 22/18 °C.
Intervention effect Higher temperature increased stomatal conductance of canola relative to 22/18 °C.
Intervention effect Elevated CO2 increased net CO2 assimilation, nonphotochemical quenching and leaf area ratio in canola.
Intervention effect Elevated CO2 decreased stomatal conductance of canola.
Intervention effect Supplemental urea nitrogen increased stomatal conductance, chlorophyll and NBI of canola under temperature stress relative to no supplement.
Intervention effect Supplemental urea nitrogen increased stem height and diameter and leaf area of canola under temperature stress.
Intervention effect Supplemental urea nitrogen increased growth rate and dry mass of canola under temperature stress.
Recommendation N supplementation may be used to alleviate environmental stress on canola under climate change.

“nitrogen use efficiency”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics