ArticleJournal of advanced research2026
Evidence for the role of soil C/N ratio in shaping plant responses to root-knot nematode infection.
Article in Journal of advanced research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Improving soil water-salt conditions and cotton yield through optimized C/N fertilizer ratios and irrigation in arid regions.Frontiers in plant science · 2026Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionRoot-knot nematodes (RKNs) pose a major threat to global crop production. Soil properties influence plant responses to RKN infestation, but the specific soil factors that are most influential in determining these responses remain poorly understood.
objectiveThis study aims to identify the key soil factors that influence plant responses to Meloidogyne incognita, develop a dynamic model to quantify plant disease severity in response to variations in these soil factors, and further elucidate the underlying mechanisms driving this interaction.
methodsWe collected 28 soils with diverse physicochemical and microbial properties at a national scale and conducted nematode infection experiments under controlled environmental conditions, using cucumber plants (a typical susceptible host for M. incognita) to assess disease severity. Based on the resulting dataset, a Mantel test was applied to identify the key soil factor influencing M. incognita infection. To further validate these findings, we performed organic carbon (C) addition experiments and M. incognita chemotaxis assays.
resultsWe found that 28 soils exhibit a broad range of plant performance indices (PPI) and disease indices (DI). The Mantel test revealed that soil carbon/nitrogen (C/N) ratio is the strongest correlate of both plant performance and disease symptoms. The DI follows an inverted hump-shaped response curve with increasing soil C/N ratio, indicating the existence of an optimal soil C/N ratio (about 8.0) for minimizing DI. This finding is further supported by the fact that organic C addition decreases DI in soils with low initial C/N ratio, but increases DI in soils with high initial C/N ratio. The shaping effects of soil C/N ratio are underpinned by its regulation of overall soil quality and plant resistance to M. incognita chemotaxis.
conclusionOptimizing C/N ratio reduces soil sensitivity and suppresses RKN infestation, offering valuable insights for sustainable agricultural management practices.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.