Intervention effectmodel-written summary

Season-long shattercane interference caused 43% corn yield loss in 2000.

A claim from Influence of Shattercane [Sorghum bicolor (L.) Moench.] Interference on Corn (Zea mays L.) Yield and Nitrogen Accumulation1 · 2002

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Season-long shattercane interference caused 43% corn yield loss in 2000.

Treatment
Season-long shattercane interferencee0
Interactor
shattercaneSorghum ×drummondiie0weed
Outcome
yield losse0
Direction
losse0
Value
43%e0

Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Sorghum x drummondii
Sorghum ×drummondii · InteractorUser:MarkusHagenlocher · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Season-long shattercane interference resulted in an 85% yield loss in 1999 and a 43% yield loss in 2000”

✓ located verbatim in the source · abstract, characters 382–485
e1

“corn grain yield”

✓ located verbatim in the source · abstract, characters 88–104

Title

Influence of Shattercane [Sorghum bicolor (L.) Moench.] Interference on Corn (Zea mays L.) Yield and Nitrogen Accumulation1

SARAH R. HANS; WILLIAM G. JOHNSON Weed Technology 2002. doi:10.1614/0890-037x(2002)016[0787:iossbl]2.0.co;2

Other claims from this paper (9)

Record rev-2d9d37fddf66a49a06c3683214836abe1b8dc1b47f60ce3ac88dfd0583f1e444 · schema claims-v0.9 · position 2 in the model’s answer

Sorghum x drummondii · yield · Zea mays (maize)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
    Two years of sorghum then sorghum × sudangrass increased corn yield by 6%.

    Interrupting Yield Depression in Monoculture Corn: Comparative Effectiveness of Grasses and Dicots · 1997 · compared with monoculture

    Opposite direction

See all 2 papers →

climate site · yield · Zea mays (maize)Positive and negative results

180 papers: 102 positive, 78 negative or no effect

77 papers in the same direction as this claim · 102 in the opposite direction

  1. negative
    Low-density yield loss occurred only with season-long interference.

    Late-Emerging Common Waterhemp (Amaranthus rudis) Interference in Conventional Tillage Corn · 2004

    Same directionCites this paper

  2. positive
    Drastic climate mitigation as in RCP 2.6 could avoid more than 80% of the global average yield losses expected under RCP 8.5 by the 2080s.

    Global crop yield response to extreme heat stress under multiple climate change futures · 2014 · compared with otherwise expected by the 2080s under RCP 8.5

    Opposite direction

  3. positive
    Maize grain yields were significantly higher, by 2.7 times, in push-pull plots than monocrop plots.

    A climate-adapted push-pull system effectively controls fall armyworm, Spodoptera frugiperda (J E Smith), in maize in East Africa · 2017 · compared with maize monocrop

    Opposite direction

  4. positive
    Longer season cultivars increased yield by 13% to 38%.

    Negative effects of climate warming on maize yield are reversed by the changing of sowing date and cultivar selection in Northeast China · 2013

    Opposite direction

  5. positive
    Hotter and drier scenarios reduced average simulated maize yield by 21% at 1 °C warming.

    Potential benefits of drought and heat tolerance for adapting maize to climate change in tropical environments · 2017 · compared with hotter only climate change scenarios

    Opposite direction

  6. positive
    Top ten DH maize testcross hybrids yielded 16% more than the best commercial check across four optimum locations.

    International Research Journal of Agricultural Science and Soil Science · 2014 · compared with best commercial check

    Opposite direction

  7. positive
    Maize plant height and grain yields were significantly higher in the climate-adapted push-pull than in maize monocrop plots.

    Climate-adapted companion cropping increases agricultural productivity in East Africa · 2015 · compared with maize monocrop plots

    Opposite direction

  8. positive
    Greengram interplanted with corn in the early season increased the yield of the early corn crop.

    Fixation and Excretion of Nitrogen by Tropical Legumes1 · 1972

    Opposite direction

171 papers more in this group

See all 180 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.