ArticleBMC plant biology2025
Paclobutrazol enhances tall fescue salt tolerance via physiological and root system architecture modulation.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
backgroundSalinity represents a major global constraint on crop productivity. Promoting the cultivation of tall fescue in saline environments offers not only nutritional advantages for livestock but also enhances its potential for ornamental use. In this mesocosm study, we examined the effects of paclobutrazol (PBZ) on tall fescue performance under salt stress, focusing on key physiological traits to evaluate salt tolerance.
resultsUnder high salt stress, paclobutrazol application increased the total number of lateral roots by 85%, from 18.39 to 34.04, and widened their growth angle by 24%, from 24.10° to 29.88°, fundamentally enhancing topsoil exploration. This reconfigured root system supported a 65% increase in tiller number, from 16.39 to 27.11, compared to plants under salt stress alone. Physiologically, paclobutrazol treatment elevated root proline concentration by 3.2-fold and sustained the maximum quantum efficiency of photosystem II (Fv/Fm) at 0.7877, a value 23% higher than the salt-stressed control (0.7052) and equivalent to non-stressed plants. Although genes associated with abscisic acid (ABA) biosynthesis were also induced, no significant increase in ABA accumulation was detected. Principal component analysis discretely distinguished the traits into root system, photosynthetic parameters, and stress indicators. NaCl induced stress-associated shifts, while PBZ-treated plants occupied an intermediate position, and showing improved root traits, photosynthesis. A strong positive correlation with control indicates PBZ partially mitigates salinity effects, maintaining functions near non-stressed levels. These synergistic improvements culminated in a 98% increase in aboveground biomass yield, producing 33.75 g per mesocosm compared to 17.06 g under salt stress alone.
conclusionWe conclude that paclobutrazol promotes a stress-tolerant phenotype by enhancing root exploration, strengthening osmotic regulation, and stabilizing photosynthetic performance, making it a promising agronomic tool for securing forage yield in saline soils.
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.