Search claims · PlantClaims

Observation 26

Observationobservedoriginal resultmeasured

Claim · model-written summary

After return to air, dry weight loss was suspended for 12 hours.

Taxon: seedlingse0
Outcome: dry weight decreasee0
Direction: suspendede0
Value: 12 hourse0

Verbatim

e0
“When the treated seedlings were returned to air, dry weight decrease was suspended for the first 12 hours”
✓ located verbatim in the source · abstract, characters 358–463

Title

Effect of Anaerobic Condition on the Dry Weight Decrease of Germinating Rice Seeds

Hideo TSUJI Shokubutsugaku Zasshi 1968. doi:10.15281/jplantres1887.81.233

Other claims from this paper (6)

Intervention effect Nitrogen anaerobiosis after day 2 accelerated seedling dry weight loss during treatment.
Intervention effect Anaerobiosis did not affect dry weight loss in seedlings younger than two days.
Intervention effect Anaerobic treatment inhibited fresh weight gain except when applied on day zero to one.
Observation The delayed fresh weight increase was not restored after transfer to air.
Observation Seedlings treated at age four or five days lost water during treatment.
Intervention effect Submergence inhibited fresh weight increase as did strict anaerobiosis.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Aboveground material lost 31—39% dry weight over the remainder of the year.

Outcome: decreasee0
Value: 31—39%e0

Not reportedTaxon

Verbatim

e0
“For the remiander of the year the decrease was 31—39%.”
✓ located verbatim in the source · abstract, characters 1017–1071

Title

Total Net Productivity and Turnover on an Energy Basis For Tallgrass Prairie

C. L. Kucera; Roger C. Dahlman; Melvin R. Koelling Ecology 1967. doi:10.2307/1936496

Other claims from this paper (13)

Observation Unburned prairie produced 4.351 X 10 6 cal/m 2 of net productivity in 1962, representing 992 g biomass.
Observation Roots supplied slightly over half the annual increment.
Observation Total growth in 1963 was 1,133 g/m 2.
Observation Average energy captured over the two years was equivalent to 1.21% of incident growing-season radiation.
Observation Maximum energy budget equalled 2.6 turnovers.
Intervention effect Fire approximately doubled aboveground yield in years with favorable rainfall.
Intervention effect Drought sharply curtailed productivity gains from burning relative to controls.
Observation End-of-season aboveground biomass was approximately twice the standing crop.
Observation Aboveground material lost 57% to 65% dry weight during April to September.
Observation Aboveground biomass turnover was estimated at 2 years.
Observation Root biomass turnover was estimated at 4 years.
Observation Caloric content of successive turnover increments decreased with age on a dry-weight basis.
Observation Four-year-old litter showed some increase in caloric content on an ash-free basis.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Cotyledon dry weight fell under both carbon dioxide treatments from days one to thirteen.

Taxon: SOYBEANSGlycine maxt0
Organ / stage: cotyledonse0
Treatment: both CO 2 treatmentse0
Outcome: dry weighte0
Direction: decreasee0
Qualifier: days 1 to 13e0

Verbatim

e0
“parallel decrease in dry weight of the cotyledons that occurred for both CO 2 treatments (days 1 to 13)”
✓ located verbatim in the source · abstract, characters 608–711

t0
“SOYBEANS”
✓ located verbatim in the source · title, characters 40–48

Title

GERMINATION AND SEEDLING DEVELOPMENT OF SOYBEANS IN A CARBON DIOXIDE‐DEFICIENT ATMOSPHERE

D. G. Green; T. W. Sudia American Journal of Botany 1969. doi:10.1002/j.1537-2197.1969.tb09753.x

Other claims from this paper (9)

Observation Most early embryo-axis dry-weight gain occurred in the hypocotyl.
Observation Epicotyl size and dry weight did not rise rapidly until days four to five.
Intervention effect Hypocotyl dry weights were similar under normal and limiting carbon dioxide through day 11.
Observation By day 13 hypocotyl dry weight continued increasing in normal carbon dioxide.
Intervention effect By day 13 hypocotyl dry weight decreased under limiting carbon dioxide.
Intervention effect Carbon dioxide treatment did not produce significantly different cotyledon reserve-utilization patterns.
Observation Seedlings used cotyledonary carbohydrates and lipids before proteins under both atmospheres.
Observation Cotyledon reserves supported soybean seedling development until about day nine.
Observation Net carbon dioxide uptake first occurred between days nine and eleven in normal atmosphere.

Intervention effect 21

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Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Auxin delayed decrease in dry weight in bean petioles.

Taxon: BEANt0
Treatment: Auxine0
Outcome: decrease in dry weighte0
Direction: delayede0

Not reportedComparator

Verbatim

e0
“Auxin delayed abscission and also delayed the initial increase in calcium, the movement of calcium from the abscission zone to the petiole, and the decrease in dry weight”
✓ located verbatim in the source · abstract, characters 913–1083

t0
“THE BEAN”
✓ located verbatim in the source · title, characters 55–63

Title

A HISTOCHEMICAL STUDY OF ABSCISSION LAYER FORMATION IN THE BEAN

H. P. Rasmussen; M. J. Bukovac American Journal of Botany 1969. doi:10.1002/j.1537-2197.1969.tb07508.x

Other claims from this paper (13)

Observation Calcium increased in the abscission zone of debladed bean petioles during the 14 hr induction period.
Observation Dry weight increased in the abscission zone during the 14 hr induction period.
Observation Before layer appearance, calcium decreased in the abscission zone.
Observation Before layer appearance, calcium increased in the petiole.
Observation Dry matter decreased in abscission zone and petiole 24 hr after deblading.
Observation Pectic material swelling was the first visual change in abscission zone cells.
Observation Non-cellulosic polysaccharides and cellulose subsequently broke down.
Observation Cellulose adjacent and distal to the layer was altered.
Observation No lignin was present during layer development.
Mechanism Cell wall component changes caused abscission layer cells to collapse before separation.
Intervention effect Auxin delayed abscission in bean petioles.
Intervention effect Auxin delayed initial increase in calcium in bean petioles.
Intervention effect Auxin delayed movement of calcium from the abscission zone to the petiole in bean petioles.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Chilling decreased the dry weight of tulip bulbs.

Taxon: tulip bulbst0
Treatment: Chillinge5
Outcome: dry weighte5
Direction: decreasee5

Not reportedComparator

Verbatim

t0
“tulip bulbs”
✓ located verbatim in the source · title, characters 14–25

e5
“Chilling stimulates the decrease of the dry weight”
✓ located verbatim in the source · abstract, characters 1407–1457

Title

Metabolism of tulip bulbs as related to thermoperiodicity

H. ITO; T. KATO; T. TOYODA Journal of the Japanese Society for Horticultural Science 1960. doi:10.2503/jjshs.29.323

Other claims from this paper (19)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Total dry weight per plot tended to decrease with each increment of potassium above 3.32 pounds.

Taxon: tobaccoNicotiana tabacume0
Treatment: increment of potassium above 3.32 poundse3
Outcome: total dry weight per plote3
Direction: tended to decreasee3

Not reportedComparator

Verbatim

e0
“In a tobacco greenhouse experiment”
✓ located verbatim in the source · abstract, characters 0–34

e3
“dry weight of tops, height of plant, leaf area, and total dry weight per plot tended to decrease with each increment of potassium above 3.32 pounds”
✓ located verbatim in the source · abstract, characters 402–549

Title

EFFECTS OF POTASSIUM AND CHLORINE ON THE PRODUCTION OF TOBACCO SEEDLINGS

J. M. Elliot; M. Elizabeth Back Canadian Journal of Soil Science 1963. doi:10.4141/cjss63-033

Other claims from this paper (7)

Intervention effect The 3.32-pound potassium rate gave the greatest total dry weight and survival of tobacco seedlings.
Intervention effect Dry weight of tops, plant height and leaf area tended to decrease with each increment of potassium above 3.32 pounds.
Mechanism High potassium levels increased soluble salts in the muck to a level that retarded tobacco seedling growth.
Observation Tobacco plants took up more potassium than the 3.32-pound rate supplied, as the muck released large amounts of potassium.
Intervention effect Chlorine in the fertilizer increased total ash and potassium content of tobacco seedlings.
Intervention effect Chlorine in the fertilizer tended to decrease nitrogen content of tobacco seedlings.
Intervention effect Potassium and chlorine had no effect on the weight of tobacco roots or on relative turgidity.

Association 11

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Associationobservedoriginal resultmeasured

Claim · model-written summary

The larger the growth of tuber slices, the larger the decrease in their dry weight.

Taxon: Jerusalem artichokeHelianthus tuberosuse0
Organ / stage: tubere0
Outcome: dry weight of the tissuee4
Direction: decreasee4

Verbatim

e0
“Using tissue slices excised from cold-stored Jerusalem artichoke tuber, the following results were obtained in connection with the growth as determined by relative wet weight increase”
✓ located verbatim in the source · abstract, characters 0–183

e4
“The larger the growth, the larger the decrease in dry weight of the tissue”
✓ located verbatim in the source · abstract, characters 628–702

Title

Auxin-induced Growth of Tuber Tissue of Jerusalem Artichoke I

Yoshio MASUDA Shokubutsugaku Zasshi 1965. doi:10.15281/jplantres1887.78.417

Other claims from this paper (8)

Intervention effect 2,4-D plus kinetin caused remarkable growth of tuber slices, more than 2,4-D alone.
Intervention effect 2,4-D alone caused less remarkable growth of tuber slices than 2,4-D plus kinetin.
Intervention effect Kinetin alone caused no appreciable growth of tuber slices.
Intervention effect Pre-washing the slices in water for 15 to 20 hours increased the growth caused by 2,4-D with or without kinetin.
Intervention effect Washing the slices in gibberellic acid solution was more effective for growth than washing in water.
Observation Inulin in the cells disappeared during 50 hours of growth of the tissue slices.
Mechanism Growth promotion by gibberellic acid and kinetin does not seem to be due to enhanced auxin absorption by the tissue.
Observation The osmotic value of the cells did not change during washing or during expansion growth.

Associationobservedoriginal resultmeasured

Claim · model-written summary

In germinating seeds, thiamine is consumed in the dark nearly in parallel to a decrease of dry weight.

Taxon: garden cropst0
Organ / stage: germinating seedse0
Compound: thiaminee0
Outcome: dry weighte0
Direction: decreasee0

Verbatim

e0
“In the germinating seeds the thiamine stored is transformed from free form to ester form and is consumed in the dark nearly in parallel to the decrease of dry weight”
✓ located verbatim in the source · abstract, characters 477–642

t0
“IN SOME GARDEN CROPS”
✓ located verbatim in the source · title, characters 56–76

Title

STUDIES ON THE PHYSIOLOGY AND UTILIZATION OF VITAMIN B₁ IN SOME GARDEN CROPS

Takashi Iijima Institutional Repositories DataBase (IRDB) 1960

Other claims from this paper (19)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing disease severity decreased surviving seedling dry weight.

Taxon: wheatTriticum aestivumt0
Interactor: sharp eyespot diseaset1pathogen
Outcome: dry weighte0
Direction: decreasee0

Verbatim

e0
“Increasing disease severity caused a decrease in height and dry weight of surviving seedlings”
✓ located verbatim in the source · abstract, characters 120–213

t0
“wheat”
✓ located verbatim in the source · title, characters 75–80

t1
“sharp eyespot disease”
✓ located verbatim in the source · title, characters 11–32

Title

Studies on sharp eyespot disease of cereals: Effects of the disease on the wheat host and the incidence of disease in the field

D. PITT Annals of Applied Biology 1966. doi:10.1111/j.1744-7348.1966.tb04389.x

Other claims from this paper (6)

Association Sharp eyespot reduced wheat seedling establishment.
Association Increasing disease severity decreased surviving seedling height.
Association Pathogen infection reduced tillering.
Association High disease incidence reduced grain yield of mature plants.
Observation A high percentage of crops in East Scotland were infected during 1963–65.
Observation Few crops in 1964 reached infection levels known to affect yield.

Mechanism 3

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Mechanismobservedoriginal resultmeasured

Claim · model-written summary

The seasonal leaf moisture decline was primarily due to dry weight rising faster than actual water content fell.

Taxon: Forest Treest0
Organ / stage: leafe0
Outcome: seasonal decreasee0
Qualifier: greater increase in leaf dry weight than to decrease in actual water contente0

Verbatim

e0
“The seasonal decrease was traceable primarily to greater increase in leaf dry weight than to decrease in actual water content”
✓ located verbatim in the source · abstract, characters 1021–1146

t0
“Forest Trees”
✓ located verbatim in the source · title, characters 67–79

Title

Changes in Moisture Contents and Dry Weights of Buds and Leaves of Forest Trees

Theodore T. Kozlowski; J. Johanna Clausen Botanical Gazette 1965. doi:10.1086/336289

Other claims from this paper (9)

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The decrease in stalk dry weight was attributed to soluble carbohydrate remobilization toward the ear.

Taxon: cornZea mays subsp. mayse1
Organ / stage: eare0
Outcome: This decreasee0
Qualifier: a remobilization towards the ear of soluble carbohydrates stored temporarily in the stalke0

Verbatim

e0
“This decrease was attributed to a remobilization towards the ear of soluble carbohydrates stored temporarily in the stalk”
✓ located verbatim in the source · abstract, characters 218–339

e1
“several corn ( Zea mays L.) hybrids”
✓ located verbatim in the source · abstract, characters 116–151

Title

Contribution of Stalk Soluble Carbohydrates to Grain Yield in Corn (Zea mays L.)¹

T. B. Daynard; J. W. Tanner; D. J. Hume Crop Science 1969. doi:10.2135/cropsci1969.0011183x000900060050x

Other claims from this paper (1)

Observation Stalk dry weight declined significantly in the last half of grain filling.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Differences in CO2 and radiation supply and tissue photosynthetic capacity were proposed to explain lower rates in reversed and doubled disks.

Outcome: decrease in photosynthetic ratee0
Qualifier: differences in the supply of CO2 and radiation energye0

Not reportedTaxon

Verbatim

e0
“The decrease in photosynthetic rate found in reversed and duplicated disks is evidently due to the simultaneous effect of differences in the supply of CO2 and radiation energy to the assimilating tissue and apparatus and also to differences in the photosynthetic capacity of different leaf tissues”
✓ located verbatim in the source · abstract, characters 1103–1400

Title

The effect of reversion and duplication of leaf disks on the accuracy of photosynthesis determination by the dry weight method

Zdenêk Šesták; Jitka Vodová Biologia Plantarum 1965. doi:10.1007/bf02920626

Other claims from this paper (7)

Intervention effect Reversing sunflower leaf disks reduced photosynthetic rate by as much as 26% at full and half irradiation.
Intervention effect Reversing fodder cabbage leaf disks reduced photosynthetic rate by as much as 26% at full and half irradiation.
Intervention effect Stacking two disks reduced photosynthesis in the upper disk similarly to reversal.
Observation Lower stacked disks assimilated 0–40% as much as upper disks, reaching the compensation point in thick leaves.
Intervention effect Two disks exceeded one normal disk in total photosynthetic dry-weight gain only in thin leaves at high radiation.
Recommendation The authors advise discarding samples when a quarter of leaf disks were reversed.
Recommendation For samples with accidentally duplicated disks, the authors advise deducting one control disk weight.

“dry weight decrease”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics

Observation 26

Intervention effect 21

Association 11

Mechanism 3