Search claims · PlantClaims

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Leaves narrowed across additional random mating generations.

Taxon: Nicotiana tabacum L.Nicotiana tabacume1
Treatment: increased generations of random matinge0
Outcome: leavese0
Direction: narrowere0

Verbatim

e0
“A decrease in yield and narrower leaves with increased generations of random mating”
✓ located verbatim in the source · abstract, characters 339–422

e1
“Eight varieties of Nicotiana tabacum L.”
✓ located verbatim in the source · abstract, characters 0–39

Title

Effects of Random Intercrossing in a Naturally Self‐Fertilizing Species, Nicotiana tabacum L.¹

A. B. Humphrey; D. F. Matzinger; C. Clark Cockerham Crop Science 1969. doi:10.2135/cropsci1969.0011183x000900040033x

Other claims from this paper (3)

Observation Generation means indicated epistasis for six of eight traits.
Association Yield decreased across additional random mating generations.
Observation One generation of selection was expected to more than offset the small decline.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Shortening daylength during stage II greatly reduced fertile florets, with none under 8 hours.

Taxon: spring barleyHordeum vulgaret0
Treatment: Shortening the daylengtht1
Outcome: percent fertile floretse0
Direction: reducede0
Qualifier: 8 hr produced nonee0

Not reportedComparator

Verbatim

e0
“during stage II, a decrease of all three components and greatly reduced percent fertile florets (8 hr produced none)”
✓ located verbatim in the source · abstract, characters 1010–1126

t0
“SPRING BARLEY”
✓ located verbatim in the source · title, characters 47–60

t1
“Shortening the daylength caused:”
✓ located verbatim in the source · abstract, characters 889–921

Title

YIELD AND PRIMARY CULM YIELD COMPONENTS OF TWO SPRING BARLEY CULTIVARS AS INFLUENCED BY TEMPERATURE, DAYLENGTH AND GROWTH STAGE

D. G. Faris; A. A. Guitard Canadian Journal of Plant Science 1969. doi:10.4141/cjps69-121

Other claims from this paper (10)

Intervention effect At 24 °C barley matured in about 60% as many days as at 13 °C.
Intervention effect At 24 °C yields were around 15% of those at 13 °C.
Intervention effect Longer daylengths reduced maturity time.
Intervention effect Longer daylengths decreased final yield only when applied during stage I.
Observation Earliest maturity occurred at 24 °C under continuous light.
Observation Highest yield occurred at 13 °C with an 8-hour first stage and 24-hour later stages.
Intervention effect Shortening daylength during stage I increased fertile heads, seeds per head and seed size.
Intervention effect Shortening daylength during stage II decreased all three yield components.
Intervention effect Shortening daylength during stage III decreased seed size only.
Association Seeds per head were most closely associated with yield.

Mechanismobservedoriginal resultnegativemeasured

Claim · model-written summary

More spikelets divide a fixed carbohydrate supply and increase grains with insufficient carbohydrate, reducing fully ripened grains.

Taxon: riceOryza sativae1
Organ / stage: spikeletse0
Outcome: number of fully ripened grainse0
Direction: decreasee0
Qualifier: more than proportional increase in number of grains which have an insufficient share of carbohydratese0

Verbatim

e0
“as the number of spikelets increases, the given amount of carbohydrates must be shared with the more numerous spikelets, causing a more than proportional increase in number of grains which have an insufficient share of carbohydrates and consequently resulting in proportional decrease in the number of fully ripened grains.”
✓ located verbatim in the source · abstract, characters 1502–1825

e1
“when the rice plants have more number of spikelets than an optimum”
✓ located verbatim in the source · abstract, characters 1232–1298

Title

Analysis of Yield-Determining Process and Its Application to Yield-Prediction and culture Improvement of Lowland Rice : XCVI. Relation of the number of spikelets per unit field area to the percentage of ripened grains and the yield with special refernce to the optimum number of spikelets per unit field area and the optimum percentage of ripened grains for maximizing the yield of rice.

Genshichi WADA; Seizo MATSUSHIMA Japanese Journal of Crop Science 1969. doi:10.1626/jcs.38.294

Other claims from this paper (7)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher nitrogen dosages at the first two top dressings increased neck blast disease.

Taxon: riceOryza sativat0
Treatment: Higher dosages of nitrogen applied at the first top-and second top-dressingse0
Outcome: occurrence of neck blast diseasee0
Direction: severee0

Not reportedComparator

Verbatim

e0
“Higher dosages of nitrogen applied at the first top-and second top-dressings resulted in the decrease of grain yield, severe occurrence of neck blast disease and lodging”
✓ located verbatim in the source · abstract, characters 1025–1194

t0
“Rice”
✓ located verbatim in the source · title, characters 130–134

Title

Effects of Split Application of Fertilizaer and Planting Density on Yield, Components of Yield, and Other Agronomic Characters of Rice (III)

W. L. Chang; S. C. Yang 中華農業研究 1964. doi:10.29951/jarc.196412.0001

Other claims from this paper (19)

Intervention effect Split fertilization raised grain yield relative to conventional application.
Intervention effect Split fertilization increased panicle number.
Intervention effect Split fertilization increased grain number.
Intervention effect Split phosphoric fertilizer had no evident response in grain yield or other measured traits.
Intervention effect Four nitrogen splits at 3: 3: 3: 1 gave the highest grain yield.
Intervention effect Higher nitrogen dosages at the first two top dressings reduced grain yield.
Intervention effect Higher nitrogen dosages at the first two top dressings increased lodging.
Intervention effect The potassium split ratio 6:4 gave better grain yield than 6.7: 3.3.
Intervention effect Higher planting density raised yield relative to lower density.
Intervention effect Higher planting density increased panicles per unit area.
Intervention effect Split fertilization reduced tillering and culm length early in growth.
Intervention effect Split fertilization gave greater tillering and culm length at maturity.
Intervention effect Split fertilization produced heavier and longer panicles.
Intervention effect High planting density reduced tillers, plant height, panicle weight and panicle length.
Intervention effect Split fertilization increased neck blast disease occurrence.
Intervention effect Neck blast disease reduced grain weight.
Intervention effect Split fertilization increased internode length, particularly the third and fifth internodes.
Intervention effect Planting density did not affect rice blast occurrence.
Intervention effect High planting density tended to increase lodging.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

More seedlings per hill increased shoots per hill.

Taxon: RiceOryza sativat0
Treatment: Increasing the number of seedlings per hille1
Outcome: number of shoots per hille1
Direction: increasee1

Not reportedComparator

Verbatim

e1
“Increasing the number of seedlings per hill resulted in an increase in the number of shoots per hill but a decrease in the number of shoots per plant”
✓ located verbatim in the source · abstract, characters 585–734

t0
“Growth and Yield of Rice”
✓ located verbatim in the source · title, characters 74–98

Title

Effects of Hill Spacing, Number of Plants Per Hill and Nitrogen Supply on Growth and Yield of Rice

B. A. C. Enyi Experimental Agriculture 1965. doi:10.1017/s0014479700100456

Other claims from this paper (8)

Intervention effect Highest shoot numbers occurred under high nitrogen and high plant density.
Intervention effect More seedlings per hill raised shoots per plot.
Intervention effect More seedlings per hill decreased shoots per plant.
Intervention effect Three seedlings per hill raised grain yield per unit area by 12%.
Intervention effect Four seedlings per hill raised grain yield per unit area by 9%.
Intervention effect Shoot mortality was greater at low than at high plant density.
Intervention effect High nitrogen with four seedlings per hill increased days from seeding to ear emergence.
Recommendation The best combination for high grain yield was high nitrogen, 15 cm x 15 cm spacing and four seedlings per hill.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors judge that the primary ill-effect of deep transplantation was delayed rooting, caused by abnormal elongation of the tillering node, which reduced tiller number and consequently head number.

Taxon: Rice PlantOryza sativat0
Treatment: deep transplantatione0
Outcome: decrease of the number of tillers and consequently that of headse0
Qualifier: retardation of rooting caused by the abnormal elongation of tillering nodee0

Verbatim

e0
“the primary ill-effect of deep transplantation seemed to be the retardation of rooting caused by the abnormal elongation of tillering node, which induced the decrease of the number of tillers and consequently that of heads”
✓ located verbatim in the source · abstract, characters 1456–1678

t0
“Rice Plant”
✓ located verbatim in the source · title, characters 66–76

Title

Effect of Depth of Transplantation on the Growth and Yield of the Rice Plant

Saburo FUNAKOSHI Japanese Journal of Crop Science 1962. doi:10.1626/jcs.31.69

Other claims from this paper (16)

Intervention effect Deep transplantation delayed the stage of maximum tiller number in rice.
Intervention effect Deep transplantation slightly delayed the heading and ripening stages in rice.
Intervention effect In the early growth stage, deep transplantation decreased plant height and tiller number in rice compared with shallow transplantation.
Intervention effect At the ripening stage, no difference was found between deep and shallow transplantation in plant height, stem length and leaf number on the main stem.
Intervention effect Deeply transplanted plots could not catch up with shallowly transplanted plots in tiller number.
Intervention effect Deeply transplanted plots ended with a small number of heads compared with shallowly transplanted plots.
Intervention effect Deeply transplanted plots had high ratios of effective tillers despite their lower tiller number.
Association The number of heads was negatively correlated with the number of spikelets per head.
Association The number of heads was positively correlated with the number of spikelets per unit area.
Association The percentage of ripened grains and the 1,000-grain weight decreased as the number of heads increased.
Intervention effect No significant difference in yield was found between deep and shallow transplantation, though yield was slightly better with shallow transplantation.
Observation Clear compensatory reactions were observed between yield components of rice.
Intervention effect A shallowly transplanted plant always showed vigorous growth, high yield and a large individual variation.
Intervention effect Even with little yield difference between transplanting depths, plant growth was considerably affected.
Recommendation The authors suggest an optimum transplanting depth of about 3 cm, depending on cultivation conditions.
Observation Ill-effects were found when rice was transplanted above 5 cm depth.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Spring-to-summer cutting yields and recovery intervals were proportional to early spring stolon reduction.

Taxon: Ladino White Clovert0
Organ / stage: stolone0
Outcome: cutting yields in the sward from spring to summer and the intervals to recovery in yielde0

Not reportedDirection

Verbatim

e0
“The cutting yields in the sward from spring to summer and the intervals to recovery in yield from winter injury were proportional to the reduction rates of stolon number in early spring.”
✓ located verbatim in the source · abstract, characters 922–1108

t0
“Ladino White Clover”
✓ located verbatim in the source · title, characters 77–96

Title

Influence of Decrease in Stolon Number Caused by Low Temperature on Yield of Ladino White Clover Sward

Waichi AGATA; Etsuo KAMATA; Kesanari AOKI Japanese Journal of Crop Science 1969. doi:10.1626/jcs.38.143

Other claims from this paper (5)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing P and K decreased the percentages of all N fractions, especially early and mid-vegetative tissues.

Taxon: barleyHordeum vulgaret0
Organ / stage: early‐ and mid‐vegetative stages of developmente0
Treatment: concentration of P and K was increasede0
Outcome: percentage of all N fractionse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“As the concentration of P and K was increased, there was an increase in the dry matter yield and a decrease in the percentage of all N fractions, particularly in tissue at the early‐ and mid‐vegetative stages of development.”
✓ located verbatim in the source · abstract, characters 613–837

t0
“Barley”
✓ located verbatim in the source · title, characters 87–93

Title

Effects of N, P, and K and their Interactions on the Nitrogen Metabolism of Vegetative Barley Tissue and on the Chemical Composition of Grain in Hydroponic Culture¹

L. B. MacLeod; R. B. Carson Agronomy Journal 1969. doi:10.2134/agronj1969.00021962006100020029x

Other claims from this paper (10)

Intervention effect Increasing nutrient-solution N increased all N fractions except mature-grain nitrate N.
Intervention effect Increasing P and K increased barley dry matter yield.
Intervention effect Mature-grain protein N percentage was lower at 100 P than 25 P.
Intervention effect Mature-grain non-protein N percentage was lower at 100 P than 25 P.
Intervention effect Mature-grain protein N percentage was lower at 200 K than 10 K or 50 K.
Intervention effect Mature-grain non-protein N percentage was lower at 200 K than 10 K or 50 K.
Intervention effect Higher P and K rates increased total protein N production per plant, largely through dry matter yield.
Intervention effect Higher P and K rates increased total non-protein N production per plant, largely through dry matter yield.
Observation N by K interaction effects exceeded N by P and P by K interactions except early in development.
Observation Potassium appeared to affect barley N metabolism more than phosphorus in vegetative and mature stages.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Inbreeding from S 2 to S 3 caused inbreeding depression in seed weight, fertility and seed yield in three families.

Taxon: BROMUS INERMISBromus inermist0
Treatment: inbreedinge3
Outcome: seed weight, fertility and seed yielde3
Direction: decreaseinferrede4
Value: 19, 24 and 66 per cente4
Comparator: S 2e4

Verbatim

t0
“BROMEGRASS, BROMUS INERMIS LEYSS.”
✓ located verbatim in the source · title, characters 52–85

e3
“These three traits all exhibited substantial inbreeding depression, averaging 21, 20 and 53 per cent for seed weight, fertility and seed yield, respectively, from S 0 to S 1 for seven families”
✓ located verbatim in the source · abstract, characters 794–986

e4
“19, 24 and 66 per cent, respectively from S 2 to S 3 for three families”
✓ located verbatim in the source · abstract, characters 992–1063

Title

INHERITANCE OF SEED WEIGHT AND ASSOCIATED TRAITS IN BROMEGRASS, BROMUS INERMIS LEYSS.

B. R. Christie; R. R. Kalton Canadian Journal of Plant Science 1960. doi:10.4141/cjps60-047

Other claims from this paper (9)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Killing the haulm when only 5% had been destroyed by blight gave the largest yield of sound tubers in fungicide-sprayed plots in the 1960 epidemic.

Taxon: potatoSolanum tuberosume0
Treatment: killing the haulm when only 5% had been destroyed by blighte6
Outcome: yield of sound tuberse5
Direction: largeste5
Qualifier: 1960 epidemice6

Not reportedComparator

Verbatim

e0
“The methods needed to decrease losses from potato blight in the variety Majestic are different from those required for King Edward”
✓ located verbatim in the source · abstract, characters 8–138

e5
“The largest yield of sound tubers”
✓ located verbatim in the source · abstract, characters 666–699

e6
“in the 1960 epidemic was obtained after killing the haulm when only 5% had been destroyed by blight”
✓ located verbatim in the source · abstract, characters 729–828

Title

The epidemiology of Phytophthora infestans. IV. Spraying trials, 1959 to 1963, and the infection of tubers

J. M. HIRST; O. J. STEDMAN; J. LACEY; et al. Annals of Applied Biology 1965. doi:10.1111/j.1744-7348.1965.tb07951.x

Other claims from this paper (9)

“yield decrease”

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