Yield was lowest in soybean under 8 dS/m NaCl salinity compared with the control

sodium chloride · yield · Glycine max (soybean)Positive and negative results

4 papers in the same direction as this claim · 1 in the opposite direction

1. positive
   Seed yield of soybean increased significantly by 56-70% in all treatments except NaCl spray.

   Cumulative Effects of Pre‐sowing Seed Treatment and Foliar Application of Salts in Improving Biomass and Grain Yield of Soybean in Moderate Saline/alkaline Soil · 1988

   Opposite direction

2. negative
   NaCl reduced soybean root growth, shoot length and dry matter production.

   Amelioration of NaCl Stress by Triadimefon in Soybean Seedlings · 1998

   Same direction

3. negative
   Soil salinity of 2000 ppm NaCl significantly reduced filled pods per plant by 55.51%.

   Impact of Salinity Stress on Soybean Growth and Yield under Saturated Soil Culture in Tidal Lands: A Comparative Study of Tolerant Varieties · 2024

   Same direction

4. negative
   Increasing NaCl reduced soybean branch and leaf numbers and shoot and root biomass.

   Zinc Priming Triggers Osmoregulation to Enhancing Growth of Soybean (Glycine Max L.) Under Salinity · 2022 · compared with control seedling

   Same direction

5. negative
   NaCl stress decreased soybean agricultural productivity.

   “Mitigation of Salt Stress By Arbuscular Mycorrhizal Fungi From High Nitrogen Field Of Soybean” · 2024

   Same direction

salinity · yield · Glycine max (soybean)Results differ

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

1. positive
   Manokin yield was significantly higher under saline water than fresh water.

   Effects of Salinity, Imazethapyr, and Chlorimuron Application on Soybean Growth and Yield · 2005 · compared with fresh water

   Opposite direction

2. positive
   Under saline conditions before flowering, En-b0-1 had greater biomass production than Enrei.

   Salinity Tolerance of Super-Nodulating Soybean Genotype En-b0-1 · 2014 · compared with Enrei

   Opposite direction

3. positive
   GmLOX6 facilitates JA production under salt stress.

   The 13‐lipoxygenase GmLOX6 is involved in JA biosynthesis and serves as a positive regulator of salt stress tolerance in soybean · 2025

   Opposite direction

4. negative
   Salinity reduced soybean growth traits.

   Physiological and biochemical responses of soybean (Glycine max L.) to cysteine application under sea salt stress · 2019

   Same direction

5. negative
   Salt stress reduced soybean plant growth, root architecture characteristics and biomass yield.

   Chitosan Modified Biochar Increases Soybean (Glycine max L.) Resistance to Salt-Stress by Augmenting Root Morphology, Antioxidant Defense Mechanisms and the Expression of Stress-Responsive Genes · 2020

   Same direction

6. negative
   Saline soil decreased pod number, 100-seed weight and seed yield of soybean.

   Exogenous Potassium Treatments Elevate Salt Tolerance and Performances of Glycine max L. by Boosting Antioxidant Defense System under Actual Saline Field Conditions · 2020 · compared with normal soil

   Same direction

7. negative
   Salinity significantly inhibited dry matter accumulation in all four soybean cultivars.

   Genotypic Differences in Dinitrogen Fixation Response to NaCl Stress in Intact and Grafted Soybean · 1998

   Same direction

8. negative
   Salinity significantly reduced growth attributes and seed yield.

   Salinity Effects on Morpho-Physiological and Yield Traits of Soybean (Glycine max L.) as Mediated by Foliar Spray with Brassinolide · 2021

   Same direction

36 papers more in this group