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61,005 resultsShowing papers similar to Macro- and microplastic leachates show a slightly toxic effect on seed germination of cotton
ClearEffects of Polyamide Microplastics with Different Concentrations on Cotton Seed Germination and Seedling Growth
Researchers exposed cotton seedlings to polyamide microplastics at varying concentrations, finding dose-dependent inhibition of seed germination and seedling growth, adding cotton to the list of staple agricultural crops susceptible to microplastic phytotoxicity.
Impact of plastic mulch and their associated leachates on seed germination
This study examined how plastic mulch films and their chemical leachates affect seed germination, finding that both the physical presence of plastic fragments and dissolved additives from weathered mulch can reduce germination rates in exposed crops.
[Characterization of Microplastic Leachate from Different Polymers and Its Effect on Seed Germination of Lettuce].
Chemicals leached from polyamide and polyethylene microplastic fibers were found to reduce seed germination vigor in lettuce, though they did not affect plant height or root length. Polyamide leachate contained higher levels of dissolved organic matter compared to polyethylene leachate.
Macro- and microplastics leachates: Characterization and impact on seed germination
This study found that chemicals leaching out of plastic mulch films used in farming — not the plastic particles themselves — are what harm seed growth. Biodegradable plastics actually released higher concentrations of these chemicals than conventional plastics. Many of the leached compounds have no safety regulations, raising concerns about the chemicals that microplastics release into soil where food is grown.
Lolium multiflorum germination and growth affected by virgin, naturally, and artificially aged high-density polyethylene microplastic and leachates
Researchers found that virgin, naturally aged, and artificially aged high-density polyethylene microplastics and their leachates negatively affected Lolium multiflorum germination and growth, with aged microplastics and their chemical leachates showing greater phytotoxicity than virgin particles.
Effects of Microplastic Particles and Microplastic Leachate on the Germination and Growth of Lolium multiflorum
Researchers tested whether polypropylene microplastic particles and the chemicals they leach affect Italian ryegrass germination and growth. Both physical microplastic particles and their leachate reduced germination rates and seedling growth, suggesting that both the particles themselves and their chemical additives can harm terrestrial plants.
Effect of polyethylene microplastics on seed germination of Blackgram (Vigna mungo L.) and Tomato (Solanum lycopersicum L.)
Researchers tested how polyethylene microplastics affect seed germination in blackgram and tomato plants, finding that higher concentrations temporarily slowed germination and root growth in blackgram within the first 24 hours, but plants largely recovered by 48–72 hours. The effects were dose-, species-, and time-dependent, suggesting microplastics can cause short-term harm to crops but may not cause permanent damage at these concentrations.
The Influence of New and Artificial Aged Microplastic and Leachates on the Germination of Lepidium sativum L.
Researchers compared the effects of new versus artificially aged microplastics and their leachates on the germination of garden cress seeds. The study found that aged microplastics, which simulate plastics that have been weathering in the environment, released different leachable substances than new plastics, and these differences affected seed germination outcomes, highlighting that the age and weathering state of microplastics influences their toxicity.
The Effect of Microplastics with Different Types, Particle Sizes, and Concentrations on the Germination of Non-Heading Chinese Cabbage Seed
Five microplastic types were tested on non-heading Chinese cabbage seed germination, finding PVC and PET had the greatest inhibitory effects on germination, while PVC and PP promoted growth of germinated seeds at certain concentrations.
Effects of Microplastics on Germination and Seedlings Growth of Wheat (Triticum aestivum L.)
Researchers tested the effects of different microplastics on wheat seed germination and seedling growth and found that all treatments reduced plant development compared to controls. Polythene-containing microplastic treatments had the most negative impact, with significant reductions in both shoot and root length across wheat varieties.
Microplastics on the growth of plants and seed germination in aquatic and terrestrial ecosystems
This review examined the effects of microplastics on plant growth and seed germination in aquatic and terrestrial ecosystems, finding that microplastic presence can affect plant development through multiple mechanisms depending on polymer type, concentration, and the composition of the growing medium.
Investigating the Impact of Microplastics Type of Polyethylene, Polypropylene, and Polystyrene on Seed Germination and Early Growth of Rice Plants
Researchers investigated how three common types of microplastics, polyethylene, polypropylene, and polystyrene, affect rice seed germination and early seedling growth. They found that microplastic exposure altered root development and shoot growth, with the effects varying by polymer type. The study raises concerns about how microplastic-contaminated agricultural soils could affect staple crop establishment and food production.
Lettuce seed germination in the presence of microplastic contamination
This study examined the effects of microplastic contamination on lettuce seed germination, finding that microplastics in soil altered physiological processes such as water retention and chlorophyll production, with implications for food safety and agricultural ecosystems.
Leachability of microplastic from different plastic materials
This study tested the leachability of microplastics from several common plastic materials under environmental conditions, finding that plastic type and degradation state influence how readily microplastic particles are released.
Exposure of Bromus hordeaceus to fossil- and plant-based micro- and nanoplastics: Impacts and plant-plastic interactions vary depending on polymer type and growth phase
Experiments with the grass Bromus hordeaceus showed that both fossil-based polyethylene and plant-based PBAT micro- and nanoplastics affected seed germination and plant development, with polymer type and growth phase determining the nature and magnitude of effects.
Leached degradation products from beached microplastics: A potential threat to coastal dune plants
Researchers found that leachates from beach-collected weathered microplastics were more phytotoxic than those from virgin plastics, inhibiting seed germination and root growth in coastal dune plants, suggesting naturally aged microplastics pose a greater threat to plant communities.
Microplastics of different shapes increase seed germination synchrony while only films and fibers affect seed germination velocity
Researchers found that microplastics of various shapes — fibers, films, foams, and fragments — increased seed germination synchrony in carrot seeds, while only films and fibers specifically reduced germination speed, suggesting shape-dependent effects on plant establishment.
Influence of thermo-oxidatively aged mulch debris on the seedling emergence of field pea (Pisum sativum var. arvense L.) seeds
Researchers used flame-spraying to generate thermo-oxidatively aged polyethylene microplastics and tested their effects on crop seedling emergence, finding that aged MP debris from mulch film degradation can inhibit germination and early plant growth in dryland agricultural soils.
Macro- and micro- plastics in soil-plant system: Effects of plastic mulch film residues on wheat (Triticum aestivum) growth
Researchers studied how plastic mulch film residues, both conventional polyethylene and biodegradable types, affect wheat growth when mixed into soil. They found that both macro- and micro-sized plastic residues negatively impacted plant growth above and below ground, with effects varying depending on the plastic type and the presence of earthworms. The study highlights that agricultural plastic residues left in soil can meaningfully affect crop development and soil ecosystem health.
Effect of PBAT Biodegradable Mulch Film Extract on Seed Germination and Seedlings Metabolism of Tobacco
This study investigated whether organic compounds extracted from a biodegradable mulch film made of poly(butylene adipate-co-terephthalate) (PBAT) affect tobacco seed germination and seedling growth. Extracts caused reduced germination rates and disrupted seedling metabolism in laboratory tests. The findings suggest that even biodegradable agricultural plastics can release compounds with phytotoxic effects.
Polyethylene microplastic: impacts on ryegrass seed germination and seedling development
Researchers grew perennial ryegrass in hydroponic solution with polyethylene microplastics at six concentrations and three particle sizes (200 nm, 25 µm, 200 µm) and found that the smallest nanoparticles at the highest concentrations caused the greatest inhibition of germination, root growth, and seedling biomass.
Risks of microplastics on germination and growth of pepper (Capsicum annuum L.) depending on the type, concentration, and particle size
Researchers tested how different types, concentrations, and sizes of microplastics affect pepper seed germination and seedling growth. They found that most microplastic treatments inhibited germination and that polyethylene terephthalate (PET) particles were generally the most harmful to seedling development. The study also revealed that larger microplastic particles tended to cause more oxidative stress in the plants, suggesting particle size plays an important role in toxicity.
Impact of long-term conventional and biodegradable film mulching on microplastic abundance and soil organic carbon in a cotton field
Researchers compared microplastic accumulation in topsoil after years of conventional polyethylene versus biodegradable film mulching in Chinese cotton fields. Despite biodegradable films being designed to break down, soils under biodegradable mulching had comparable microplastic counts to conventional mulching after multiple seasons, raising questions about whether bioplastic mulches truly reduce field microplastic pollution.
Effects of polyethylene terephthalate microplastic on germination, biochemistry and phytotoxicity of Cicer arietinum L. and cytotoxicity study on Allium cepa L
Researchers studied the effects of polyethylene terephthalate (PET) microplastics on chickpea germination and onion root tip cells at concentrations ranging from 50 to 1,000 mg/L. The study found a sharp decrease in germination rates along with biochemical changes and cytotoxic effects at higher microplastic concentrations. Evidence indicates that PET microplastics in soil can negatively affect both plant development and cellular processes.