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“decrease of the photosynthesis”

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Subsoiling at jointing reduced or constrained dry matter production by 1 519.5 kg/ha.

Taxon: Summer MaizeZea mayst0
Material: Zhendan958e1
Treatment: subsoiling at jointing stagee0
Outcome: dry matter productione0
Direction: lesse0
Value: 1 519.5 kg/hae0
Comparator: non-subsoilinge0

Verbatim

t0
“Summer Maize”
✓ located verbatim in the source · title, characters 87–99

e0
“compared with non-subsoiling,subsoiling at jointing stage achieved the following characters: plant height and ear height decreased by 17.3 cm and 9.0 cm,stem diameter decreased by 2.7 mm,and one leaf less;the increase of LAI before silking was limited,while decrease of LAI after silking was slow;stomatal conductance,intercellular CO2 concentration,transpiration rate,net photosynthetic rate of ear leaves decreased 38%…” Show full quote
✓ located verbatim in the source · abstract, characters 302–1013

e1
“Zhendan958 was applied in the field experiment.”
✓ located verbatim in the source · abstract, characters 0–47

Title

Effects of Subsoiling at Jointing Stage on Dry Matter Production and Photosynthesis of Summer Maize

Dongxing Zhang Yumi kexue 2013

Other claims from this paper (17)

Intervention effect Subsoiling at jointing reduced or constrained plant height by 17.3 cm.
Intervention effect Subsoiling at jointing reduced or constrained ear height by 9.0 cm.
Intervention effect Subsoiling at jointing reduced or constrained stem diameter by 2.7 mm.
Intervention effect Subsoiling at jointing reduced or constrained leaf by one leaf.
Intervention effect Subsoiling at jointing reduced or constrained LAI before silking.
Intervention effect Subsoiling at jointing reduced or constrained LAI after silking.
Intervention effect Subsoiling at jointing reduced or constrained stomatal conductance by 38%.
Intervention effect Subsoiling at jointing reduced or constrained intercellular CO2 concentration by 25.3%.
Intervention effect Subsoiling at jointing reduced or constrained transpiration rate by 42.5%.
Intervention effect Subsoiling at jointing reduced or constrained net photosynthetic rate by 2.0%.
Intervention effect Subsoiling at jointing reduced or constrained dry matter production by 168.8 kg/ha.
Intervention effect Subsoiling at jointing reduced or constrained grain number by 100.
Intervention effect Subsoiling at jointing reduced or constrained economic index by 7 percentage.
Intervention effect Subsoiling at jointing reduced or constrained grain yield by 1 662.0 kg/ha.
Intervention effect The two nitrogen regimes did not differ significantly for the studied outcomes.
Association No subsoiling by nitrogen regime interaction was observed.
Recommendation The authors conclude that jointing-stage subsoiling is unsuitable.

Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

The authors proposed spectral changes as the cause of greater resistance under Eu3+:LaF3.

Taxon: cucumbers (Cucumis sativus)Cucumis sativuse1
Treatment: Eu3+:LaF3 applicationse0
Outcome: an increase in plant resistancee0
Qualifier: changes in the illumination spectrume1

Verbatim

e0
“an increase in plant resistance in the case of Eu3+:LaF3 applications”
✓ located verbatim in the source · abstract, characters 1564–1633

e1
“cucumbers (Cucumis sativus) were used as model plants. It was shown that plants grown under cover with Eu2O3 (PCC-Eu2O3) were 30–40% larger, gave a higher yield, and the activation of gas exchange processes and the light phase of photosynthesis in the leaves in response to the lighting was faster. On the contrary, plants grown under cover with Eu3+:LaF3 (PCC-Eu3+:LaF3) tended to slow down the rate of biomass accumula…” Show full quote
✓ located verbatim in the source · abstract, characters 535–1466

Title

Two Types of Europium-Based Photoconversion Covers for Greenhouse Farming with Different Effects on Plants

Mark O. Paskhin; Denis V. Yanykin; Alexander V. Popov; et al. Horticulturae 2023. doi:10.3390/horticulturae9070846

Other claims from this paper (9)

Intervention effect Eu2O3 cover increased plant size by 30–40%.
Intervention effect Eu2O3 cover increased yield.
Intervention effect Eu2O3 cover sped activation of gas exchange and the light phase of photosynthesis.
Intervention effect Eu3+:LaF3 cover tended to slow biomass accumulation.
Intervention effect Eu3+:LaF3 cover tended to decrease gas exchange activation.
Intervention effect Eu2O3 cover made plants more sensitive to heat and cold treatment.
Intervention effect Eu3+:LaF3 cover made plants more resistant to high and low temperatures.
Intervention effect Eu2O3 cover inhibited Phytophthora infestans development on tomato plants.
Mechanism The authors proposed spectral changes as the cause of growth activation under Eu2O3.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Photosynthetic rate of abscisic-acid-treated leaves did not increase after irradiance rose within the light-limited range.

Taxon: soybeanGlycine maxe0
Treatment: abscisic acide1
Outcome: photosynthetic ratee0
Direction: did not increasee0
Qualifier: Following exposure to incident irradiances close to the light compensation pointe0

Not reportedComparator

Verbatim

e0
“soybean leaves simultaneously decreased quantum yield and carboxylation efficiency. These decreases were proportional to the accompanying decrease of light-saturated photosynthetic rate under normal atmosphere. ABA did not affect the CO2 compensation point at saturating irradiance, or the stimulation of net photosynthesis produced when the partial pressure of oxygen was reduced from 210 to 20 mPa Pa−1 at a rate-limit…” Show full quote
✓ located verbatim in the source · abstract, characters 59–1166

e1
“Injecting abscisic acid (ABA) into the petiole of attached soybean leaves simultaneously decreased quantum yield and carboxylation efficiency”
✓ located verbatim in the source · abstract, characters 0–141

Title

Abscisic Acid Simultaneously Decreases Carboxylation Efficiency and Quantum Yield in Attached Soybean Leaves

DAVID A. WARD; JAMES A. BUNCE Journal of Experimental Botany 1987. doi:10.1093/jxb/38.7.1182

Other claims from this paper (9)

Intervention effect Abscisic acid decreased quantum yield in attached soybean leaves.
Intervention effect Abscisic acid decreased carboxylation efficiency in attached soybean leaves.
Intervention effect The decreases in quantum yield and carboxylation efficiency were proportional to the decrease in light-saturated photosynthetic rate.
Intervention effect Abscisic acid did not affect the CO2 compensation point at saturating irradiance.
Intervention effect Abscisic acid did not alter the net photosynthesis stimulation caused by reducing oxygen partial pressure at rate-limiting irradiance.
Intervention effect The activation status of RuBP carboxylase was insensitive to abscisic acid.
Intervention effect Abscisic acid decreased photosynthetic capacity in soybean leaves.
Intervention effect Abscisic acid increased RuBP content in soybean leaves at saturating irradiance under normal atmosphere.
Intervention effect The increase in RuBP content was proportional to inhibition of photosynthetic capacity.

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“decrease of the photosynthesis”

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