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“yield decrease”

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Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Heat stress significantly reduced ribonucleic acid content of young panicles.

Taxon: riceOryza sativae0
Organ / stage: young paniclese6
Treatment: heat-stresse6
Outcome: ribonucleic acid (RNA) contente6
Direction: reducede6
Comparator: natural temperature (the mean temperature during the day 33℃, CK)e1

Verbatim

e0
“in reproduction of rice plants”
✓ located verbatim in the source · abstract, characters 44–74

e1
“Two indica rice cultivars with different heat-tolerance, Shuanggui 1 (heat-sensitive) and Huanghuazhan (heat-tolerant), were pot-grown and subjected to treatments of heat-stress (the mean temperature during the day 35℃) and natural temperature (the mean temperature during the day 33℃, CK)”
✓ located verbatim in the source · abstract, characters 316–605

e6
“The heat-stress significantly reduced root oxidation activity and ribonucleic acid (RNA) content of young panicles, and significantly increased malondialdehyde (MDA) content of leaves and ethylene evolution rate of young panicles, and the extent of the decrease or increase was more in Shuanggui 1 than in Huanghuazhan”
✓ located verbatim in the source · abstract, characters 1223–1541

Title

Effect of Heat-Stress during Meiosis on Grain Yield of Rice Cultivars Differing in Heat-Tolerance and Its Physiological Mechanism

Cao Yun ACTA AGRONOMICA SINICA 2008

Other claims from this paper (15)

Intervention effect Heat stress during meiosis significantly reduced anther dehiscence and pollen fertility rate of Shuanggui 1.
Intervention effect Heat stress during meiosis much less affected anther dehiscence and pollen fertility rate of Huanghuazhan.
Intervention effect Heat stress during meiosis significantly decreased spikelets per panicle, seed-setting rate and 1000-grain weight in both cultivars.
Intervention effect Heat stress during meiosis significantly reduced grain yield in both cultivars.
Intervention effect Heat stress reduced grain yield more in Shuanggui 1 than in Huanghuazhan.
Intervention effect Heat stress significantly decreased grain width of Shuanggui 1.
Intervention effect Heat stress obviously increased the ratio of length to width of grain in Shuanggui 1.
Intervention effect Heat stress less affected grain width and the ratio of length to width of grain in Huanghuazhan.
Intervention effect Heat stress significantly reduced root oxidation activity.
Intervention effect Heat stress significantly increased malondialdehyde content of leaves.
Intervention effect Heat stress significantly increased ethylene evolution rate of young panicles.
Intervention effect The heat-induced decrease or increase in these physiological indicators was greater in Shuanggui 1 than in Huanghuazhan.
Intervention effect Heat stress significantly increased peroxidase, superoxide dismutase and catalase activities of leaves in Huanghuazhan.
Intervention effect Heat stress much less affected peroxidase, superoxide dismutase and catalase activities of leaves in Shuanggui 1.
Mechanism Stronger root activity, antioxidative defense, greater RNA content, and less ethylene synthesis and lower MDA content would be physiological mechanisms maintaining higher grain yield in the heat-tolerant cultivar.

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

A preferable management mode for tomato is N 286.88 kg·hm-2 and K2O 286.88 kg hm-2 with irrigation at pF 2.0 (10 kPa) upper and pF 2.49 (30 kPa) lower soil water suction limits.

Taxon: tomatoSolanum lycopersicume4
Treatment: N 286.88 kg·hm-2,K2O 286.88 kg hm-2e6
Outcome: preferable irrigation and fertilization management modee6
Qualifier: pF 2.0(10 kPa) and pF 2.49(30 kPa)e6

Verbatim

e6
“the preferable irrigation and fertilization management mode of fertilization amount was N 286.88 kg·hm-2,K2O 286.88 kg hm-2,soil water suction of the irrigation upper limit and lower limit were respective pF 2.0(10 kPa) and pF 2.49(30 kPa)”
✓ located verbatim in the source · abstract, characters 1121–1360

e4
“the quality of tomato fruit could improved by the proper increase of the irrigation upper limit and the decrease of the conventional fertilization amount significantly”
✓ located verbatim in the source · abstract, characters 852–1019

Title

Study on effect of irrigation and fertilization on yield and fruit quality of greenhouse tomato

Dan Yang Turang feiliao 2009

Other claims from this paper (6)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Narrower spacing reduced leaf area, head diameter, seeds per head and thousand-seed weight.

Taxon: sunflowerHelianthus annuuse0 t0 t1 e2 e3 e4 e5 e6 e7
Treatment: distance between hillse0 t0 t1 e2 e3 e4 e5 e6 e7
Outcome: leaf area , head diameter , number of seeds per heade0 t0 t1 e2 e3 e4 e5 e6 e7
Direction: decreaseinferrede0 t0 t1 e2 e3 e4 e5 e6 e7

Not reportedComparator

Verbatim

e0
“while a reverse results was obtained for leaf area , head diameter , number of seeds per head and weight of 1000 seeds for both years of study”
✓ located verbatim in the source · abstract, characters 1434–1576

t0
“sunflower genotypes (Helianthus annuus L .)”
✓ located verbatim in the source · title, characters 39–82

t1
“sunflower genotypes (Helianthus annuus L .)”
✓ located verbatim in the source · title, characters 39–82

e2
“Flamme genotype was significantly superior (P < 0.05 ) in most characters of growth , yields and harvest index in both years”
✓ located verbatim in the source · abstract, characters 498–622

e3
“Oil percentage and oil yields in the first year , and the value of the above characters reached the highest at 20 cm distance between hills”
✓ located verbatim in the source · abstract, characters 1027–1166

e4
“For the second character the average was 43.02 and 62.56 % as compared with 30 and 40 cm distance among hills respectively”
✓ located verbatim in the source · abstract, characters 1310–1432

e5
“Decreasing distance between hills caused significant increase in the plant height, leaf area index ,dry matter yield , seed yield and harvest index in both years”
✓ located verbatim in the source · abstract, characters 864–1025

e6
“the number of plants per hill was (1, 2plants )”
✓ located verbatim in the source · abstract, characters 390–437

e7
“when planting two plants in a hill; the yields of seed increased about 70% as an average for both years and oil yields to about 54% as compared with planting one plant per hill”
✓ located verbatim in the source · abstract, characters 1579–1755

Title

Response of growth and yields of three sunflower genotypes (Helianthus annuus L .) to arrangement system of plants in farm

B. H. Abduallah Anbar Journal of Agricultural Sciences 2008. doi:10.32649/ajas.2008.32102

Other claims from this paper (13)

Observation Flamme had superior growth, yield and harvest index relative to the other genotypes.
Observation Flamme seed yield averaged 10.19 ton /ha, compared with Akmar at 6.12 and Euro flower at 6.46 ton / ha.
Observation Flamme oil yield was 3.82 ton /ha, above Akmar at 2.31 and Euroflower at 2.41 ton /ha.
Intervention effect Narrower hill spacing increased sunflower plant height, leaf area index and dry matter yield.
Intervention effect Narrower hill spacing increased seed yield and harvest index.
Intervention effect Narrower hill spacing increased oil percentage and oil yield in the first year.
Intervention effect At 20 cm spacing, seed yield exceeded yields at 30 and 40 cm by 38.33% and 54.09%, respectively.
Intervention effect At 20 cm spacing, oil yield exceeded yields at 30 and 40 cm by 43.02% and 62.56%, respectively.
Intervention effect Two plants per hill increased seed yield by about 70% compared with one plant per hill.
Intervention effect Two plants per hill increased oil yield by about 54% compared with one plant per hill.
Intervention effect Plant number per hill had no reported effect on harvest index.
Intervention effect One plant per hill significantly increased sunflower oil percentage.
Intervention effect Flamme produced higher seed and oil yields at 20 cm spacing and two plants per hill.

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