Intervention effectmodel-written summary

At optimal nitrogen, pepper yield decreased above irrigation salinity of ECiw 2 dS m−1.

A claim from INTERACTIVE EFFECTS OF SALINITY AND N ON PEPPER (CAPSICUM ANNUUM L.) YIELD, WATER USE EFFICIENCY AND ROOT ZONE AND DRAINAGE SALINITY · 2013

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At optimal nitrogen, pepper yield decreased above irrigation salinity of ECiw 2 dS m−1.

Taxon
PEPPER (CAPSICUM ANNUUM L.)t0
Treatment
irrigation water salinitye1
Outcome
yielde1
Direction
decreasede1
Value
ECiw 2 dS m−1e1
Qualifier
optimal N levele1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting

Verbatim

e1

“At optimal N level, yield decreased when the irrigation water salinity was above ECiw 2 dS m−1.”

✓ located verbatim in the source · abstract, characters 513–608
t0

“PEPPER (CAPSICUM ANNUUM L.)”

✓ located verbatim in the source · title, characters 41–68

Title

INTERACTIVE EFFECTS OF SALINITY AND N ON PEPPER (CAPSICUM ANNUUM L.) YIELD, WATER USE EFFICIENCY AND ROOT ZONE AND DRAINAGE SALINITY

G. Duygu Semiz; Donald L. Suarez; Ali Ünlükara; et al. Journal of Plant Nutrition 2013. doi:10.1080/01904167.2013.867985

Other claims from this paper (3)

Record rev-767d0f5041bfb26e297a5fc5bed9f398bcee9bd938e2b6f1c8757976fc7b6b88 · schema claims-v0.9 · position 1 in the model’s answer

salinity · yield · Capsicum annuum (sweet pepper)Results differ

25 papers: 3 positive, 22 negative or no effect

21 papers in the same direction as this claim · 3 in the opposite direction

  1. positive
    At highest salinity, plants doubled fruit production.

    Research Article: Effects of salt stress on capsaicin content, growth, and fluorescence in a Jalapeño cultivar ofCapsicum annuum(Solanaceae) · 2012

    Opposite direction

  2. positive
    The mixture of non-saline and saline irrigation waters gave the highest fruit yields of bell pepper.

    Heterogeneous salinity in the root system of bell pepper in greenhouse · 2018

    Opposite direction

  3. positive
    Pepper yield showed a unimodal response to increasing salinity, peaking at 3 g L−1.

    Optimizing Irrigation and Fertilization for Greenhouse Pepper Under Slightly Saline Water in Arid Regions · 2026

    Opposite direction

  4. negative
    Salt stress significantly decreased fruit number, fruit fresh weight and fruit yield in sweet pepper compared with control plants.

    Silicon Foliar Application Mitigates Salt Stress in Sweet Pepper Plants by Enhancing Water Status, Photosynthesis, Antioxidant Enzyme Activity and Fruit Yield · 2020 · compared with control plants

    Same direction

  5. negative
    Salinity significantly reduced sweet pepper fruit yield characters.

    Chlorophyll Fluorescence Parameters and Antioxidant Defense System Can Display Salt Tolerance of Salt Acclimated Sweet Pepper Plants Treated with Chitosan and Plant Growth Promoting Rhizobacteria · 2020

    Same direction

  6. negative
    Bell pepper plants sprinkled every 2.3 days with the two saline waters produced lower yields than plants sprinkled less often.

    Effects of Frequency of Sprinkling With Saline Waters Compared With Daily Drip Irrigation1 · 1975 · compared with plants sprinkled less often

    Same direction

  7. negative
    Salt stress reduced the fresh shoot yield of pepper by nearly two-thirds.

    Effects of Salt Stress on Adenine and Uridine Nucleotide Pools, Sugar and Acid-Soluble Phosphate in Shoots of Pepper and Safflower · 1988

    Same direction

  8. negative
    Salinity reduced total yield of sweet pepper.

    Fruit quality of sweet pepper as affected by foliar Ca applications to mitigate the supply of saline water under a climate change scenario · 2017

    Same direction

16 papers more in this group

See all 25 papers →

irrigation · yield · Capsicum annuum (sweet pepper)Positive and negative results

61 papers: 44 positive, 17 negative or no effect

16 papers in the same direction as this claim · 44 in the opposite direction

  1. positive
    Bell pepper yield was greatest with irrigation at 25 kPa.

    Irrigation Regimes Affect Yield and Water Use by Bell Pepper · 1994

    Opposite direction

  2. positive
    Black polyethylene mulch combined with irrigation produced maximum bell pepper yield.

    Influence of Plastic Mulch and Type and Frequency of Irrigation on Growth and Yield of Bell Pepper · 1988

    Opposite direction

  3. positive
    Additional irrigation increased yield and fruit number of staked plants in year two.

    Response of Plasticultured Bell Pepper to Staking, Irrigation Frequency, and Fertigated Nitrogen Rate · 2002

    Opposite direction

  4. positive
    Black plastic mulch with drip irrigation increased pepper yield over bare soil by 16 MT per hectare.

    Black Plastic Mulch and Drip Irrigation Affect Growth and Performance of Bell Pepper · 2001 · compared with bare soil

    Opposite direction

  5. positive
    Irrigation at 1800 m3 fed-1 with kaolin or potassium silicate increased fruit number per plant, average fruit weight and early yield.

    INFLUENCE OF IRRIGATION LEVELS, ANTITRANSPIRANTS AND POTASSIUM SILICATE ON GROWTH, FRUIT YIELD AND QUALITY OF SWEET PEPPER PLANTS (Capsicum annuum L.) GROWN UNDER DRIP IRRIGATION · 2013

    Opposite direction

  6. positive
    More frequent irrigation of noninfested soil increased yield in 1991.

    Effects of Furrow Irrigation Schedules and Host Genotyp on Phytophthora Root Rot of Pepper. · 1995

    Opposite direction

  7. positive
    Reduced irrigation rates maximized vegetative growth and fruit yield similarly to 100% ETc.

    Plastic-mulched Bell Pepper (Capsicum annuum L.) Plant Growth and Fruit Yield and Quality as Influenced by Irrigation Rate and Calcium Fertilization · 2017 · compared with 100% ETc

    Opposite direction

  8. positive
    Irrigation at 50% of ETc in mulched soil gave higher bell pepper productivity.

    Bell pepper cultivation under different irrigation strategies in soil with and without mulching · 2018

    Opposite direction

52 papers more in this group

See all 61 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.