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“decrease in dry weight”

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1960 ’70 ’80

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Taxon: cabbage ✕

Taxon groups are the verbatim names found in the abstracts (case-insensitive), not normalised: maize, corn and Zea mays are separate groups here. The Organism view merges them through NCBI Taxonomy.

Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

The decrease in cabbage dry weight and head yield under low light is attributed to lower sugar content and lower 14CO2 assimilation.

Taxon: cabbageBrassica oleracea var. capitatat0
Outcome: plant dry weight and the cabbage-head yielde3
Qualifier: decrease in the sugar content and in the rate of 14CO2 assimilatione3

Verbatim

t0
“cabbage-head formation”
✓ located verbatim in the source · title, characters 30–52

e3
“As the light intensity decreased, so the plant dry weight and the cabbage-head yield decreased, resulting from a decrease in the sugar content and in the rate of 14CO2 assimilation”
✓ located verbatim in the source · abstract, characters 576–756

Title

The role of macronutrients in cabbage-head formation

Tetsuo Hara; Yoji Sonoda Soil Science & Plant Nutrition 1981. doi:10.1080/00380768.1981.10431270

Other claims from this paper (11)

Intervention effect Increasing nitrogen supply from 5 to 50 ppm N increased cabbage plant dry weight.
Intervention effect Nitrogen supply at 500 ppm N decreased cabbage plant dry weight.
Intervention effect Cabbage grown at 50 ppm N had the highest sugar content.
Intervention effect Cabbage grown at 50 ppm N had the highest rate of 14CO2 assimilation.
Mechanism Growth at 50 ppm N explains efficient cabbage-head development through the highest sugar content.
Intervention effect Decreasing light intensity decreased cabbage plant dry weight and cabbage-head yield.
Intervention effect Low light intensity made the 15NO3-N uptake by cabbage smaller than high light intensity.
Intervention effect Low light impaired incorporation of 15N into the 80% ethanol-insoluble fraction of the cabbage head.
Association The later the growth stage at which 14CO2 was assimilated, the greater the 14C-retention percentage at harvest.
Association The later the growth stage at which 14CO2 was assimilated, the greater the distribution of 14C into the cabbage head.
Association The 14C-retention percentage decreased with increased nitrogen supply or decreased light intensity in cabbage.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Decreasing light intensity decreased cabbage plant dry weight and cabbage-head yield.

Taxon: cabbageBrassica oleracea var. capitatat0
Treatment: light intensitye3
Outcome: plant dry weight and the cabbage-head yielde3
Direction: decreasede3

Not reportedComparator

Verbatim

t0
“cabbage-head formation”
✓ located verbatim in the source · title, characters 30–52

e3
“As the light intensity decreased, so the plant dry weight and the cabbage-head yield decreased, resulting from a decrease in the sugar content and in the rate of 14CO2 assimilation”
✓ located verbatim in the source · abstract, characters 576–756

Title

The role of macronutrients in cabbage-head formation

Tetsuo Hara; Yoji Sonoda Soil Science & Plant Nutrition 1981. doi:10.1080/00380768.1981.10431270

Other claims from this paper (11)

Intervention effect Increasing nitrogen supply from 5 to 50 ppm N increased cabbage plant dry weight.
Intervention effect Nitrogen supply at 500 ppm N decreased cabbage plant dry weight.
Intervention effect Cabbage grown at 50 ppm N had the highest sugar content.
Intervention effect Cabbage grown at 50 ppm N had the highest rate of 14CO2 assimilation.
Mechanism Growth at 50 ppm N explains efficient cabbage-head development through the highest sugar content.
Mechanism The decrease in cabbage dry weight and head yield under low light is attributed to lower sugar content and lower 14CO2 assimilation.
Intervention effect Low light intensity made the 15NO3-N uptake by cabbage smaller than high light intensity.
Intervention effect Low light impaired incorporation of 15N into the 80% ethanol-insoluble fraction of the cabbage head.
Association The later the growth stage at which 14CO2 was assimilated, the greater the 14C-retention percentage at harvest.
Association The later the growth stage at which 14CO2 was assimilated, the greater the distribution of 14C into the cabbage head.
Association The 14C-retention percentage decreased with increased nitrogen supply or decreased light intensity in cabbage.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The critical Ca content causing a 50% decrease in cabbage-head yield was 1.1%.

Taxon: cabbageBrassica oleracea var. capitatae0
Treatment: deficiencye2
Compound: Cae2
Outcome: cabbage-head yielde2
Direction: 50% decreasee2
Value: 1.1e2
Qualifier: critical Ca, Mg and S contentse2

Not reportedComparator

Verbatim

t0
“The role of macronutrients in cabbage-head formation”
✓ located verbatim in the source · title, characters 0–52

e0
“Young cabbage plants (Brassica oleracea L. var. capitata L.) were grown for 80 days”
✓ located verbatim in the source · abstract, characters 9–92

e2
“The critical Ca, Mg and S contents which resulted in a 50% decrease in cabbage-head yield due to each deficiency were 1.1, 0.15 and 0.04% on a dry weight basis, respectively”
✓ located verbatim in the source · abstract, characters 539–712

Title

The role of macronutrients in cabbage-head formation

Tetsuo Hara; Yoji Sonoda Soil Science & Plant Nutrition 1981. doi:10.1080/00380768.1981.10431253

Other claims from this paper (11)

Intervention effect Cabbage-head yield increased with higher Ca, Mg or S concentration in the culture solution.
Intervention effect The critical Mg content causing a 50% decrease in cabbage-head yield was 0.15%.
Intervention effect The critical S content causing a 50% decrease in cabbage-head yield was 0.04%.
Intervention effect A longer period of nutrient supply gave higher cabbage-head yield.
Intervention effect Cabbage plants deficient in these nutrients contained less sugars.
Association Mg and S contributed most per unit weight to head formation at the first growth stage.
Association The contribution of Mg and S to head formation became smaller at later development stages.
Association The difference in Ca contribution among growth stages was smaller than that of Mg and S.
Intervention effect Ca supplied for 20 days at any of the four growth stages did not produce an ordinary cabbagehead.
Intervention effect Mg and S supplied at the first or second growth stage produced a large cabbage-head.
Observation Ca is required throughout the whole growth stage for cabbage-head formation.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The critical Mg content causing a 50% decrease in cabbage-head yield was 0.15%.

Taxon: cabbageBrassica oleracea var. capitatae0
Treatment: deficiencye2
Compound: Mge2
Outcome: cabbage-head yielde2
Direction: 50% decreasee2
Value: 0.15e2
Qualifier: critical Ca, Mg and S contentse2

Not reportedComparator

Verbatim

t0
“The role of macronutrients in cabbage-head formation”
✓ located verbatim in the source · title, characters 0–52

e0
“Young cabbage plants (Brassica oleracea L. var. capitata L.) were grown for 80 days”
✓ located verbatim in the source · abstract, characters 9–92

e2
“The critical Ca, Mg and S contents which resulted in a 50% decrease in cabbage-head yield due to each deficiency were 1.1, 0.15 and 0.04% on a dry weight basis, respectively”
✓ located verbatim in the source · abstract, characters 539–712

Title

The role of macronutrients in cabbage-head formation

Tetsuo Hara; Yoji Sonoda Soil Science & Plant Nutrition 1981. doi:10.1080/00380768.1981.10431253

Other claims from this paper (11)

Intervention effect Cabbage-head yield increased with higher Ca, Mg or S concentration in the culture solution.
Intervention effect The critical Ca content causing a 50% decrease in cabbage-head yield was 1.1%.
Intervention effect The critical S content causing a 50% decrease in cabbage-head yield was 0.04%.
Intervention effect A longer period of nutrient supply gave higher cabbage-head yield.
Intervention effect Cabbage plants deficient in these nutrients contained less sugars.
Association Mg and S contributed most per unit weight to head formation at the first growth stage.
Association The contribution of Mg and S to head formation became smaller at later development stages.
Association The difference in Ca contribution among growth stages was smaller than that of Mg and S.
Intervention effect Ca supplied for 20 days at any of the four growth stages did not produce an ordinary cabbagehead.
Intervention effect Mg and S supplied at the first or second growth stage produced a large cabbage-head.
Observation Ca is required throughout the whole growth stage for cabbage-head formation.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The critical S content causing a 50% decrease in cabbage-head yield was 0.04%.

Taxon: cabbageBrassica oleracea var. capitatae0
Treatment: deficiencye2
Compound: Se2
Outcome: cabbage-head yielde2
Direction: 50% decreasee2
Value: 0.04e2
Qualifier: critical Ca, Mg and S contentse2

Not reportedComparator

Verbatim

t0
“The role of macronutrients in cabbage-head formation”
✓ located verbatim in the source · title, characters 0–52

e0
“Young cabbage plants (Brassica oleracea L. var. capitata L.) were grown for 80 days”
✓ located verbatim in the source · abstract, characters 9–92

e2
“The critical Ca, Mg and S contents which resulted in a 50% decrease in cabbage-head yield due to each deficiency were 1.1, 0.15 and 0.04% on a dry weight basis, respectively”
✓ located verbatim in the source · abstract, characters 539–712

Title

The role of macronutrients in cabbage-head formation

Tetsuo Hara; Yoji Sonoda Soil Science & Plant Nutrition 1981. doi:10.1080/00380768.1981.10431253

Other claims from this paper (11)

Intervention effect Cabbage-head yield increased with higher Ca, Mg or S concentration in the culture solution.
Intervention effect The critical Ca content causing a 50% decrease in cabbage-head yield was 1.1%.
Intervention effect The critical Mg content causing a 50% decrease in cabbage-head yield was 0.15%.
Intervention effect A longer period of nutrient supply gave higher cabbage-head yield.
Intervention effect Cabbage plants deficient in these nutrients contained less sugars.
Association Mg and S contributed most per unit weight to head formation at the first growth stage.
Association The contribution of Mg and S to head formation became smaller at later development stages.
Association The difference in Ca contribution among growth stages was smaller than that of Mg and S.
Intervention effect Ca supplied for 20 days at any of the four growth stages did not produce an ordinary cabbagehead.
Intervention effect Mg and S supplied at the first or second growth stage produced a large cabbage-head.
Observation Ca is required throughout the whole growth stage for cabbage-head formation.

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