Search claims · PlantClaims

1980s 17

Mechanismobservedoriginal resultmeasured

Claim · model-written summary

Increased light interception under nitrogen was partially offset by reduced dry weight partitioning to tubers.

Taxon: potatoSolanum tuberosumt0
Outcome: Increases in light interceptione0
Qualifier: decrease in the proportion of the dry weight partitioned to the tuberse0

Verbatim

e0
“Increases in light interception, in response to nitrogen, were partially offset by a concomitant decrease in the proportion of the dry weight partitioned to the tubers”
✓ located verbatim in the source · abstract, characters 1207–1374

t0
“potato”
✓ located verbatim in the source · title, characters 52–58

Title

Growth, nitrogen uptake and partitioning within the potato (Solatium tuberosum L.) crop, in relation to nitrogen application

P. Millard; B. Marshall The Journal of Agricultural Science 1986. doi:10.1017/s0021859600087220

Other claims from this paper (11)

Intervention effect Fertilizer increased potato nitrogen uptake.
Observation At high nitrogen rates, uptake exceeded immediate growth requirements.
Observation Extra nitrogen initially occurred mainly as soluble protein in leaves.
Observation Extra nitrogen initially occurred as nitrate in the stem.
Observation Reduced nitrogen in tubers became a large component during tuber bulking.
Intervention effect 25 g N/m 2 shifted nitrogen partitioning toward foliage relative to tubers.
Observation Maximum final tuber yield occurred at 15 g N/m 2 in both years.
Mechanism Nitrogen-related yield increases were due to increased radiation interception.
Intervention effect Canopy photosynthetic efficiency was little affected.
Intervention effect Tuber dry matter content was little affected.
Association Nitrogen application effects on tuber yield depended on harvest date.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Increase in respiration is partly correlated with decrease in fresh weight upon transfer

Taxon: Solanum tuberosumSolanum tuberosume0
Treatment: transfere6
Outcome: increase in respiratione6

Not reportedDirection

Verbatim

e0
“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
✓ located verbatim in the source · abstract, characters 0–190

e6
“The increase in respiration is partly correlated with the decrease in fresh weight upon transfer”
✓ located verbatim in the source · abstract, characters 951–1047

Title

Influence of osmotic stress on the respiration of potato tuber callus

Linus H. W. van der Plas; Marijke J. Wagner Physiologia Plantarum 1984. doi:10.1111/j.1399-3054.1984.tb04592.x

Other claims from this paper (14)

Intervention effect Potato callus fresh weight decreased upon transfer to mannitol medium
Intervention effect Potato callus dry weight increased upon transfer to mannitol medium
Intervention effect Osmolarity of the intracellular fluid of potato callus increased upon transfer to mannitol medium
Mechanism Mannitol is probably taken up from the medium until tissue osmolarity equals that of the medium
Intervention effect Respiration of potato callus increased upon transfer to medium with extra mannitol, especially per fresh weight
Intervention effect On a fresh weight basis, cytochrome and alternative pathway capacities did not change appreciably with extra mannitol
Intervention effect Participation of the alternative pathway in uninhibited respiration of potato callus rose from about 10% to 90% upon transfer
Intervention effect Capacities of the cytochrome and alternative pathway declined per disc upon transfer
Intervention effect Total respiration per disc of potato callus significantly increased upon transfer
Mechanism Total respiration per disc increased due to increased participation of the alternative pathway
Intervention effect ATP production per disc was almost unchanged before and after transfer
Mechanism The alternative pathway may function as a reserve capacity in potato callus when cytochrome pathway ATP production is impaired
Intervention effect Growth of potato callus became negligible on medium with 0.5 M mannitol after osmotic adaptation
Observation Potato callus retained its viability after osmotic adaptation on 0.5 M mannitol

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Supplemental UV-B did not significantly decrease dry weight in potato.

Taxon: potatoSolanum tuberosume1
Treatment: supplemental enhancement of 32 mW m −2 effective UV-B radiatione0
Outcome: dry weightse0
Direction: not significantly decreasede0
Comparator: control plants that received only solar UV-B radiatione0

Verbatim

e0
“The dry weights of all 4 species and pea and wheat plant height were not significantly decreased by a supplemental enhancement of 32 mW m −2 effective UV-B radiation from cellulose acetate filtered FS-40 sunlamps for 6 hours each day, relative to control plants that received only solar UV-B radiation”
✓ located verbatim in the source · abstract, characters 837–1138

e1
“potato ( Solanum tuberosum L.)”
✓ located verbatim in the source · abstract, characters 117–147

Title

Effects of Deletion and Enhancement of Ultraviolet-B (280–315nm) Radiation on Plants Grown at 3000 m Elevation1

Michael R. Becwar; Frank D. Moore; Michael J. Burke Journal of the American Society for Horticultural Science 1982. doi:10.21273/jashs.107.5.771

Other claims from this paper (9)

Intervention effect UV-B transmitting films produced shorter wheat than UV-B excluding Mylar.
Intervention effect UV-B film treatments did not significantly differ in potato dry weight.
Intervention effect UV-B film treatments did not significantly differ in radish dry weight.
Intervention effect UV-B film treatments did not significantly differ in wheat dry weight.
Intervention effect Supplemental UV-B did not significantly decrease dry weight in pea.
Intervention effect Supplemental UV-B did not significantly decrease dry weight in radish.
Intervention effect Supplemental UV-B did not significantly decrease dry weight in wheat.
Intervention effect Supplemental UV-B did not significantly decrease pea height.
Intervention effect Supplemental UV-B did not significantly decrease wheat height.

2010s 9

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher soil salinity decreased potato tuber yield, tuber number and tuber dry weight.

Taxon: potatoSolanum tuberosume0
Treatment: soil salinitye0
Outcome: total fresh tuber yield, tuber number, tuber dry weighte0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“The increase in soil salinity caused to decrease in all parameters (total fresh tuber yield, tuber number, tuber dry weight, weight of potato classified as Grade A, biomass and leaf area) except harvest index”
✓ located verbatim in the source · abstract, characters 1137–1345

Title

Photosynthetic Response of Potato Plants to Soil Salinity

Berkant Ödemiş; Mehmet Emin Çalışkan DergiPark (Istanbul University) 2014

Other claims from this paper (10)

Intervention effect Irrigation water requirement decreased 4.5%-18.9% as irrigation salinity increased.
Intervention effect Crop water use decreased 3%-16% as irrigation salinity increased.
Intervention effect Water use efficiency decreased 16.45-19.36% as irrigation salinity increased.
Intervention effect Higher soil salinity decreased Grade A potato weight, biomass and leaf area.
Intervention effect Harvest index was an exception to the decrease under higher soil salinity.
Intervention effect Foliar proline did not significantly affect most potato yield parameters.
Intervention effect Stomatal conductance was the most affected photosynthetic parameter under salinity.
Intervention effect Photosynthesis, transpiration and stomatal conductance rose in T7 versus T3.5.
Intervention effect Irrigation salinity significantly affected tuber bulking I and II periods.
Intervention effect Proline significantly affected tuber initiation and tuber bulking II.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Suitable nitrogen application decreased stoloniferous root dry weight relative to unfertilized controls in both cultivars.

Taxon: potatoSolanum tuberosumt0
Treatment: suitable mode of N applicatione0
Outcome: stoloniferous root dry weighte0
Direction: decreasee0
Comparator: unfertilized controle0

Verbatim

e0
“Compared to the unfertilized control, for both cultivars, a suitable mode of N application provided an increase in stem and leaf dry weight and a decrease in stoloniferous root dry weight.”
✓ located verbatim in the source · abstract, characters 874–1062

t0
“potato tuber yield”
✓ located after whitespace/quote normalisation · title, characters 0–18

Title

Potato Tuber Yield and Plant Morphological Descriptors as Affected by Nitrogen Application

Carla do Carmo Milagres; Paulo Cezar Rezende Fontes; José Maria da Silva Communications in Soil Science and Plant Analysis 2019. doi:10.1080/00103624.2019.1648495

Other claims from this paper (5)

Intervention effect Inadequately timed urea reduced crop profitability by 4.3%.
Recommendation Splitting urea application was more appropriate for Agata.
Recommendation Not splitting nitrogen application was better for Asterix.
Intervention effect Suitable nitrogen application increased stem and leaf dry weight relative to unfertilized controls in both cultivars.
Observation Tuber dry weight was highest, followed by leaf, stem, roots, and stolon.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Shoot dry-weight differences between nitrogen forms decreased during tuber bulking.

Taxon: PotatoSolanum tuberosumt0
Organ / stage: tuber bulking stagee0
Outcome: difference in shoot DWse0
Direction: decreasee0

Verbatim

e0
“During the tuber bulking stage, the difference in shoot DWs among N forms began to decrease”
✓ located verbatim in the source · abstract, characters 878–969

t0
“Potato”
✓ located verbatim in the source · title, characters 0–6

Title

Potato Stolon and Tuber Growth Influenced by Nitrogen Form

Yuan Gao; Liguo Jia; Bo Hu; et al. Plant Production Science 2014. doi:10.1626/pps.17.138

Other claims from this paper (7)

Intervention effect Nitrate-fed potato plants made more stolons than ammonium-fed plants at tuber initiation.
Intervention effect Nitrate-fed plants made thicker stolons than ammonium-fed plants.
Intervention effect Nitrate-fed stolon tips swelled or formed tubers earlier than ammonium-fed tips.
Intervention effect Nitrate-fed plants produced more tubers than ammonium-fed plants.
Intervention effect Harvest tuber yield did not differ significantly between nitrogen forms.
Intervention effect Nitrate-fed plants had lower shoot growth rate at tuber initiation, offered as a possible explanation for unchanged yield.
Intervention effect Nitrate-fed shoots were sometimes heavier than ammonium-fed shoots during tuber bulking.

1990s 7

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Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Total tuber dry weight decreased.

Taxon: potatoSolanum tuberosumt0
Outcome: total tuber dry weighte0
Direction: decreasee0

Verbatim

e0
“The changes in carbohydrate accumulation are accompanied by a decrease in total tuber dry weight and a reduction of soluble tuber proteins”
✓ located verbatim in the source · abstract, characters 1159–1297

t0
“potato”
✓ located verbatim in the source · title, characters 84–90

Title

Evidence of the crucial role of sucrose synthase for sink strength using transgenic potato plants (Solanum tuberosum L.)

Rita Zrenner; Marcel Salanoubat; Lothar Willmitzer; et al. The Plant Journal 1995. doi:10.1046/j.1365-313x.1995.07010097.x

Other claims from this paper (12)

Observation Inhibition of Susy activity in the antisense plants was tuber-specific.
Intervention effect Susy inhibition caused no change in sucrose content in developing potato tubers.
Intervention effect Susy inhibition caused a strong accumulation of reducing sugars in developing potato tubers.
Intervention effect Susy inhibition inhibited starch accumulation in developing potato tubers.
Observation Invertase activities increased 40-fold in parallel with the increase in hexoses.
Observation Hexokinase activities showed no considerable changes.
Observation The reduction in starch accumulation was not due to inhibition of the major starch biosynthetic enzymes.
Observation Soluble tuber proteins were reduced.
Observation The reduced protein accumulation was mainly due to a decrease in patatin, the 22 kDa proteins and the proteinase inhibitors.
Observation The lowered storage protein accumulation was not a consequence of the availability of the free amino acid pool in potato tubers.
Intervention effect Susy antisense plants showed no increase in tuber number per plant.
Mechanism The authors conclude that sucrose synthase is the major determinant of potato tuber sink strength.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

PsJN reduced Chaleur root dry weight by 50%.

Taxon: potatoesSolanum tuberosume1
Material: Chaleure0
Treatment: Inoculatede0
Interactor: strain PsJNe1other
Outcome: root dry weighte0
Direction: decreasee0
Value: 50%e0

Not reportedComparator

Verbatim

e0
“Inoculated plantlets of cultivars Norchip, Kennebec, Shepody, and Chaleur showed, in root dry weight, a five- to eight-fold increase, two- to three-fold increase, no response, and a decrease of 50%, respectively.”
✓ located verbatim in the source · abstract, characters 620–832

e1
“growth promotion of potatoes by strain PsJN was cultivar specific”
✓ located verbatim in the source · abstract, characters 553–618

Title

A gnotobiotic bioassay for studying interactions between potatoes and plant growth-promoting rhizobacteria

Kenneth L. Conn; George Lazarovits; Jerzy Nowak Canadian Journal of Microbiology 1997. doi:10.1139/m97-117

Other claims from this paper (10)

Method / resource The gnotobiotic potato bioassay was highly useful for testing growth promotion by PsJN.
Intervention effect PsJN increased root dry weight five- to eight-fold in Norchip.
Intervention effect PsJN increased root dry weight two- to three-fold in Kennebec.
Intervention effect Shepody root dry weight did not respond to PsJN inoculation.
Method / resource Haulm dry weight followed root trends but was less consistent as an indicator.
Method / resource Minor medium, temperature and light changes did not materially change bioassay results.
Method / resource Screening eliminated 93% of transconjugates retaining growth-promotion activity.
Method / resource Seven retested isolates were confirmed to have lost growth-promoting ability.
Intervention effect Other bacterial genera did not increase potato plantlet growth.
Intervention effect Several other bacterial isolates inhibited potato root and haulm growth.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Shepody root dry weight did not respond to PsJN inoculation.

Taxon: potatoesSolanum tuberosume1
Material: Shepodye0
Treatment: Inoculatede0
Interactor: strain PsJNe1other
Outcome: root dry weighte0
Direction: no responsee0

Not reportedComparator

Verbatim

e0
“Inoculated plantlets of cultivars Norchip, Kennebec, Shepody, and Chaleur showed, in root dry weight, a five- to eight-fold increase, two- to three-fold increase, no response, and a decrease of 50%, respectively.”
✓ located verbatim in the source · abstract, characters 620–832

e1
“growth promotion of potatoes by strain PsJN was cultivar specific”
✓ located verbatim in the source · abstract, characters 553–618

Title

A gnotobiotic bioassay for studying interactions between potatoes and plant growth-promoting rhizobacteria

Kenneth L. Conn; George Lazarovits; Jerzy Nowak Canadian Journal of Microbiology 1997. doi:10.1139/m97-117

Other claims from this paper (10)

Method / resource The gnotobiotic potato bioassay was highly useful for testing growth promotion by PsJN.
Intervention effect PsJN increased root dry weight five- to eight-fold in Norchip.
Intervention effect PsJN increased root dry weight two- to three-fold in Kennebec.
Intervention effect PsJN reduced Chaleur root dry weight by 50%.
Method / resource Haulm dry weight followed root trends but was less consistent as an indicator.
Method / resource Minor medium, temperature and light changes did not materially change bioassay results.
Method / resource Screening eliminated 93% of transconjugates retaining growth-promotion activity.
Method / resource Seven retested isolates were confirmed to have lost growth-promoting ability.
Intervention effect Other bacterial genera did not increase potato plantlet growth.
Intervention effect Several other bacterial isolates inhibited potato root and haulm growth.

2000s 4

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Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing nitrogen limitation linearly decreased potato crop dry weight and intercepted radiation.

Taxon: potatoSolanum tuberosume0
Treatment: N limitatione0
Outcome: crop dry weight and cumulative intercepted PARe0
Direction: decreasee0
Qualifier: NNI = 1–0.55e0

Verbatim

e0
“An increasing N limitation in potato (NNI = 1–0.55) resulted in a linear decrease in crop dry weight and cumulative intercepted PAR”
✓ located verbatim in the source · abstract, characters 1015–1146

Title

Yield and Growth Components of Potato and Wheat under Organic Nitrogen Management

Arnout van Delden Agronomy Journal 2001. doi:10.2134/agronj2001.1370

Other claims from this paper (9)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

In potato, increased soil nitrogen supply decreased total dry weight and seed number of Stellaria media.

Taxon: potatoSolanum tuberosume1
Treatment: soil nitrogen supplye1
Interactor: S. mediaStellaria mediae1weed
Outcome: total dry weight and seed number of the weede1
Direction: decreaseinferrede1

Verbatim

e1
“In wheat, as in a monoculture of S. media , total dry weight and seed number of the weed increased with soil nitrogen supply, whereas in potato the opposite was found”
✓ located verbatim in the source · abstract, characters 503–669

Title

The influence of nitrogen supply on the ability of wheat and potato to suppressStellaria mediagrowth and reproduction

A Van Delden; L A P Lotz; L Bastiaans; et al. Weed Research 2002. doi:10.1046/j.1365-3180.2002.00303.x

Other claims from this paper (3)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salt exposure reduced shoot and root length and biomass more in Concord than Kennebec.

Taxon: PotatoSolanum tuberosumt0
Material: Concorde0
Treatment: NaCle0
Outcome: length and fresh and dry weight of both shoots and rootse0
Direction: greater decreasee0
Comparator: Kennebece0

Verbatim

e0
“On exposure to NaCl, the length and fresh and dry weight of both shoots and roots of Concord showed greater decrease than those of Kennebec”
✓ located verbatim in the source · abstract, characters 323–462

t0
“Potato”
✓ located verbatim in the source · title, characters 0–6

Title

Potato Responds to Salt Stress by Increased Activity of Antioxidant Enzymes

Keyvan Aghaei; Ali Akber Ehsanpour; Setsuko Komatsu Journal of Integrative Plant Biology 2009. doi:10.1111/j.1744-7909.2009.00886.x

Other claims from this paper (9)

Observation Salt-induced shoot growth decline was more severe than root decline in both potato cultivars.
Intervention effect NaCl reduced shoot and root potassium content dose dependently in both potato cultivars.
Intervention effect NaCl increased sodium content of shoots and roots in both potato cultivars.
Intervention effect NaCl increased ascorbate peroxidase, catalase and glutathione reductase activities in Kennebec shoots.
Intervention effect NaCl decreased the corresponding antioxidant enzyme activities in Concord shoots.
Observation Roots of the two potato cultivars showed similar antioxidant enzyme responses to NaCl.
Association Antioxidant enzyme activity in Concord shoots declined with increasing NaCl concentration.
Association Antioxidant enzyme activities in Kennebec shoots and roots of both cultivars lacked a dose dependence.
Mechanism The authors suggest increased antioxidant enzyme activity contributes to Kennebec salt tolerance.

2020s 3

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Weeds reduced potato dry weight by 15–40%.

Taxon: PotatoSolanum tuberosumt0
Outcome: plant dry weighte0
Direction: decreaseinferrede0
Value: 15–40%e0

Not reportedTreatmentComparator

Verbatim

e0
“plant dry weight by 15–40%”
✓ located verbatim in the source · abstract, characters 624–650

t0
“Potato”
✓ located verbatim in the source · title, characters 42–48

Title

Weed Tolerance and Suppressive Ability of Potato Cultivars to Natural Weed Infestations

Ahmad Omid Siddiqui; Khawar Jabran Journal of Crop Health 2025. doi:10.1007/s10343-025-01117-9

Other claims from this paper (10)

Intervention effect Weeds reduced potato plant height by 10–37%.
Intervention effect Weeds reduced potato fresh weight by 21–44%.
Intervention effect Weeds reduced potato yield by 15–48%.
Observation Weed dry weight ranged from 146.7 g m −2 for Lady Olympia to 428.3 g m −2 for Arizona.
Observation Under weeds, Electra tuber yield was 13.84 t ha −1.
Observation Under weeds, Agria tuber yield was 25.15 t ha −1.
Association Early emergence, rapid canopy development and greater biomass characterized weed-suppressive cultivars.
Association Taller cultivars with higher yields were more weed tolerant.
Observation Lady Olympia suppressed weed dry weight by at least 60%, the highest suppression.
Observation Agria had superior weed tolerance with minimal yield loss.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Dry weight content decreased during storage in both control and biofortified tubers.

Taxon: PotatoSolanum tuberosumt0
Material: control and biofortified tuberse0
Outcome: dry weight contente0
Direction: decreasee0
Comparator: harvest datae0

Verbatim

e0
“showed a decrease in the dry weight content in the control and biofortified tubers (compared to the harvest data)”
✓ located verbatim in the source · abstract, characters 1208–1321

t0
“Potato (Solanum tuberosum L.)”
✓ located verbatim in the source · title, characters 95–124

Title

Monitorization of Mineral Content and Location after 3 Months of Storage of Naturally Enriched Potato (Solanum tuberosum L.) with Calcium

Ana Rita F. Coelho; Cláudia Campos Pessoa; Diana Daccak; et al. The 1st International Electronic Conference on Horticulturae 2022. doi:10.3390/iecho2022-12511

Other claims from this paper (6)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacillus subtilis 10-4 treatment decreased the number of diseased tubers with scab and dry rot.

Taxon: potatoSolanum tuberosume2
Treatment: Treatment with the B. subtilis 10-4 straine3
Interactor: B. subtilis 10-4Bacillus subtilise3symbiont
Outcome: number of diseased tuberse0
Direction: decreasee0
Qualifier: with signs of scab and dry rote0
Comparator: non-inoculated (control)e1

Verbatim

e0
“a decrease in the number of diseased tubers with signs of scab and dry rot”
✓ located verbatim in the source · abstract, characters 556–630

e1
“inoculated and non-inoculated (control) plants”
✓ located verbatim in the source · abstract, characters 280–326

e2
“on potato yield”
✓ located verbatim in the source · abstract, characters 80–95

e3
“Treatment with the B. subtilis 10-4 strain led to an increase in the total number of tubers from the bush by 35.4, their weight by 16.5%”
✓ located verbatim in the source · abstract, characters 414–550

Title

Assessment of enzymative and microbiological activity of soil rhizosphere Solanum tuberosum L. under the influence of treatment of tubers with endophyte bacteria Bacillus subtilis in the conditions of the Cis-Ural Region

S. R. Garipova; L. I. Pusenkova; L. V. Sidorova; et al. Агрохимия 2024. doi:10.31857/s0002188124120085

Other claims from this paper (15)

1950s 1

Show all 1 →

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Virus infection decreased total dry weight mainly through tuber dry weight loss.

Taxon: potato plantsSolanum tuberosume0
Material: Craig's Defiancee0
Organ / stage: tuberse0
Treatment: infection with leaf‐roll viruse0
Interactor: leaf‐roll viruse0pathogen
Outcome: total dry weighte0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“decrease in total dry weight of potato plants (var. Craig's Defiance) caused by infection with leaf‐roll virus was almost entirely at the expense of the tubers”
✓ located verbatim in the source · abstract, characters 4–163

Title

AN ANALYSIS OF THE EFFECTS OF INFECTION WITH LEAF‐ROLL VIRUS ON THE GROWTH AND YIELD OF POTATO PLANTS, AND OF ITS INTERACTIONS WITH NUTRIENT SUPPLY AND SHADING

D. J. WATSON; J. H. WILSON Annals of Applied Biology 1956. doi:10.1111/j.1744-7348.1956.tb02134.x

Other claims from this paper (19)

Intervention effect Infection increased leaf and stem dry weight.
Intervention effect Infection slightly decreased root and stolon dry weight.
Intervention effect Nitrogenous fertilizer reduced virus-related tuber dry weight loss.
Intervention effect Phosphorus and potassium did not affect virus-related tuber loss.
Intervention effect Infection decreased net assimilation rate through early July.
Observation Infected plants had higher later net assimilation rate.
Intervention effect Infection decreased leaf area until early July.
Intervention effect Infection delayed leaf senescence and increased late leaf area.
Observation Mean infection-related net assimilation rate decrease was about 20%.
Observation Mean infection-related leaf area decrease was 4%.
Mechanism Older rolled leaves had diminished photosynthetic efficiency underlying lower net assimilation.
Observation Nutrient effects on net assimilation and interactions with infection were small and rarely significant.
Intervention effect Nitrogenous fertilizer increased leaf area throughout growth.
Intervention effect Phosphorus increased early leaf area.
Intervention effect Phosphorus hastened senescence and decreased August leaf area.
Intervention effect Potassium increased leaf area particularly later in growth.
Observation Infected plants had more leaves than healthy plants beyond early growth.
Intervention effect Shading decreased net assimilation rate and increased leaf area without affecting yield.
Observation Virus-related yield loss was smaller in Up-to-Date than Craig’s Defiance.

“dry weight decrease”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics

1980s 17

2010s 9

1990s 7

2000s 4

2020s 3

1950s 1