Rhododendron 3,586 claims

genus · family Ericaceae · green plant · NCBI Taxonomy ↗

Also written in claims: azaleas · Therorhodion — NCBI synonyms: Rhododendron sect. Therorhodion · Therorhodion · Tsusiophyllum

54 spellings

Questions studied on this organism46 questions2 with results that differ93 papers

Rhododendron · picture of the genus (one of its species)Luis Miguel Bugallo Sánchez · CC BY-SA 4.0 · Wikimedia Commons ↗

3,586 claims

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Observationobservedreview summarybasis n/a

Claim · model-written summary

The Shingba Rhododendron Sanctuary hosts over 24 species of rhododendrons in Yumthang Valley.

Taxon: rhododendronsRhododendrone0
Outcome: species of rhododendronse0
Value: over 24 speciese0
Setting: Shingba Rhododendron Sanctuarye0

Verbatim

e0
“the Shingba Rhododendron Sanctuary, an essential conservation area in the valley, hosts over 24 species of rhododendrons”
✓ located verbatim in the source · abstract, characters 362–482

Title

Flora and fauna of Yumthang Valley, Sikkim – a Himalayan treasure trove: a review of biodiversity and traditional utility

Bapan Banik Biodiversity 2026. doi:10.1080/14888386.2025.2611331

Other claims from this paper (3)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar amendment dose-dependently enhanced total fine root length of Rhododendron by 57.2–85.4%.

Taxon: RhododendronRhododendrone0
Treatment: Biochar amendmente2
Outcome: total fine root lengthe2
Direction: enhancede2
Value: 57.2–85.4%e2
Qualifier: dose-dependentlye2

Not reportedComparator

Verbatim

e0
“Rhododendron, an important acidophilic plant”
✓ located verbatim in the source · abstract, characters 0–44

e2
“Biochar amendment dose-dependently enhanced total fine root length (57.2–85.4%) and plant NUE (94.2–199%), along with increases in the fungal-to-bacterial ratio and mycorrhizal colonization”
✓ located verbatim in the source · abstract, characters 552–741

Title

Biochar altered microbial nitrogen transformation and enhanced plant nitrogen utilization efficiency in an alkaline soil

Huimin Zhou; Guoxi Chen; Ying Zhang; et al. Journal of Environmental Management 2026. doi:10.1016/j.jenvman.2026.129308

Other claims from this paper (14)

Intervention effect Biochar amendment enhanced plant nitrogen use efficiency of Rhododendron by 94.2–199%.
Intervention effect Biochar amendment increased the fungal-to-bacterial ratio and mycorrhizal colonization of Rhododendron roots.
Intervention effect Biochar suppressed pathogenic fungi (Dactylonectria) in the Rhododendron soil.
Intervention effect Biochar suppressed N-competing bacteria (Lysobacter) in the Rhododendron soil.
Intervention effect Biochar enriched beneficial fungi (Condenascus) in the Rhododendron soil.
Intervention effect Biochar enriched copiotrophic bacteria (Pseudomonas) in the Rhododendron soil.
Intervention effect Biochar enhanced the abundance of ammonia-oxidizing bacteria (AOB) in the Rhododendron soil.
Intervention effect Biochar reduced nirS gene abundance in the Rhododendron soil.
Intervention effect Biochar increased potential nitrification in the Rhododendron soil.
Intervention effect Biochar decreased denitrification activity in the Rhododendron soil.
Intervention effect At higher application rates (4%–8%) biochar decreased the (nirS + nirK)/nosZ ratio, indicating a potential reduction in N2O emissions.
Association Soil fertility was associated with AOB abundance in the Rhododendron soil (partial least squares path model).
Association Soil pH was linked to nirS in the Rhododendron soil (partial least squares path model).
Mechanism Both AOB-related and nirS-related pathways ultimately govern nitrogen use efficiency of Rhododendron (author interpretation).

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar amendment enhanced plant nitrogen use efficiency of Rhododendron by 94.2–199%.

Taxon: RhododendronRhododendrone0
Treatment: Biochar amendmente2
Outcome: plant NUEe2
Direction: enhancede2
Value: 94.2–199%e2

Not reportedComparator

Verbatim

e0
“Rhododendron, an important acidophilic plant”
✓ located verbatim in the source · abstract, characters 0–44

e2
“Biochar amendment dose-dependently enhanced total fine root length (57.2–85.4%) and plant NUE (94.2–199%), along with increases in the fungal-to-bacterial ratio and mycorrhizal colonization”
✓ located verbatim in the source · abstract, characters 552–741

Title

Biochar altered microbial nitrogen transformation and enhanced plant nitrogen utilization efficiency in an alkaline soil

Huimin Zhou; Guoxi Chen; Ying Zhang; et al. Journal of Environmental Management 2026. doi:10.1016/j.jenvman.2026.129308

Other claims from this paper (14)

Intervention effect Biochar amendment dose-dependently enhanced total fine root length of Rhododendron by 57.2–85.4%.
Intervention effect Biochar amendment increased the fungal-to-bacterial ratio and mycorrhizal colonization of Rhododendron roots.
Intervention effect Biochar suppressed pathogenic fungi (Dactylonectria) in the Rhododendron soil.
Intervention effect Biochar suppressed N-competing bacteria (Lysobacter) in the Rhododendron soil.
Intervention effect Biochar enriched beneficial fungi (Condenascus) in the Rhododendron soil.
Intervention effect Biochar enriched copiotrophic bacteria (Pseudomonas) in the Rhododendron soil.
Intervention effect Biochar enhanced the abundance of ammonia-oxidizing bacteria (AOB) in the Rhododendron soil.
Intervention effect Biochar reduced nirS gene abundance in the Rhododendron soil.
Intervention effect Biochar increased potential nitrification in the Rhododendron soil.
Intervention effect Biochar decreased denitrification activity in the Rhododendron soil.
Intervention effect At higher application rates (4%–8%) biochar decreased the (nirS + nirK)/nosZ ratio, indicating a potential reduction in N2O emissions.
Association Soil fertility was associated with AOB abundance in the Rhododendron soil (partial least squares path model).
Association Soil pH was linked to nirS in the Rhododendron soil (partial least squares path model).
Mechanism Both AOB-related and nirS-related pathways ultimately govern nitrogen use efficiency of Rhododendron (author interpretation).

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar amendment increased the fungal-to-bacterial ratio and mycorrhizal colonization of Rhododendron roots.

Taxon: RhododendronRhododendrone0
Treatment: Biochar amendmente2
Outcome: fungal-to-bacterial ratio and mycorrhizal colonizatione3
Direction: increasese3

Not reportedComparator

Verbatim

e0
“Rhododendron, an important acidophilic plant”
✓ located verbatim in the source · abstract, characters 0–44

e2
“Biochar amendment dose-dependently enhanced total fine root length (57.2–85.4%) and plant NUE (94.2–199%), along with increases in the fungal-to-bacterial ratio and mycorrhizal colonization”
✓ located verbatim in the source · abstract, characters 552–741

e3
“along with increases in the fungal-to-bacterial ratio and mycorrhizal colonization”
✓ located verbatim in the source · abstract, characters 659–741

Title

Biochar altered microbial nitrogen transformation and enhanced plant nitrogen utilization efficiency in an alkaline soil

Huimin Zhou; Guoxi Chen; Ying Zhang; et al. Journal of Environmental Management 2026. doi:10.1016/j.jenvman.2026.129308

Other claims from this paper (14)

Intervention effect Biochar amendment dose-dependently enhanced total fine root length of Rhododendron by 57.2–85.4%.
Intervention effect Biochar amendment enhanced plant nitrogen use efficiency of Rhododendron by 94.2–199%.
Intervention effect Biochar suppressed pathogenic fungi (Dactylonectria) in the Rhododendron soil.
Intervention effect Biochar suppressed N-competing bacteria (Lysobacter) in the Rhododendron soil.
Intervention effect Biochar enriched beneficial fungi (Condenascus) in the Rhododendron soil.
Intervention effect Biochar enriched copiotrophic bacteria (Pseudomonas) in the Rhododendron soil.
Intervention effect Biochar enhanced the abundance of ammonia-oxidizing bacteria (AOB) in the Rhododendron soil.
Intervention effect Biochar reduced nirS gene abundance in the Rhododendron soil.
Intervention effect Biochar increased potential nitrification in the Rhododendron soil.
Intervention effect Biochar decreased denitrification activity in the Rhododendron soil.
Intervention effect At higher application rates (4%–8%) biochar decreased the (nirS + nirK)/nosZ ratio, indicating a potential reduction in N2O emissions.
Association Soil fertility was associated with AOB abundance in the Rhododendron soil (partial least squares path model).
Association Soil pH was linked to nirS in the Rhododendron soil (partial least squares path model).
Mechanism Both AOB-related and nirS-related pathways ultimately govern nitrogen use efficiency of Rhododendron (author interpretation).

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar suppressed pathogenic fungi (Dactylonectria) in the Rhododendron soil.

Taxon: RhododendronRhododendrone0
Treatment: biochare5
Interactor: DactylonectriaDactylonectriae4pathogen
Outcome: pathogenic fungie4
Direction: suppressinge4

Not reportedComparator

Verbatim

e0
“Rhododendron, an important acidophilic plant”
✓ located verbatim in the source · abstract, characters 0–44

e4
“suppressing N-competing bacteria (e.g., Lysobacter ) and pathogenic fungi (e.g., Dactylonectria )”
✓ located verbatim in the source · abstract, characters 841–938

e5
“Illumina HiSeq sequencing revealed that biochar reshaped the soil microbial community”
✓ located verbatim in the source · abstract, characters 743–828

Title

Biochar altered microbial nitrogen transformation and enhanced plant nitrogen utilization efficiency in an alkaline soil

Huimin Zhou; Guoxi Chen; Ying Zhang; et al. Journal of Environmental Management 2026. doi:10.1016/j.jenvman.2026.129308

Other claims from this paper (14)

Intervention effect Biochar amendment dose-dependently enhanced total fine root length of Rhododendron by 57.2–85.4%.
Intervention effect Biochar amendment enhanced plant nitrogen use efficiency of Rhododendron by 94.2–199%.
Intervention effect Biochar amendment increased the fungal-to-bacterial ratio and mycorrhizal colonization of Rhododendron roots.
Intervention effect Biochar suppressed N-competing bacteria (Lysobacter) in the Rhododendron soil.
Intervention effect Biochar enriched beneficial fungi (Condenascus) in the Rhododendron soil.
Intervention effect Biochar enriched copiotrophic bacteria (Pseudomonas) in the Rhododendron soil.
Intervention effect Biochar enhanced the abundance of ammonia-oxidizing bacteria (AOB) in the Rhododendron soil.
Intervention effect Biochar reduced nirS gene abundance in the Rhododendron soil.
Intervention effect Biochar increased potential nitrification in the Rhododendron soil.
Intervention effect Biochar decreased denitrification activity in the Rhododendron soil.
Intervention effect At higher application rates (4%–8%) biochar decreased the (nirS + nirK)/nosZ ratio, indicating a potential reduction in N2O emissions.
Association Soil fertility was associated with AOB abundance in the Rhododendron soil (partial least squares path model).
Association Soil pH was linked to nirS in the Rhododendron soil (partial least squares path model).
Mechanism Both AOB-related and nirS-related pathways ultimately govern nitrogen use efficiency of Rhododendron (author interpretation).

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar suppressed N-competing bacteria (Lysobacter) in the Rhododendron soil.

Taxon: RhododendronRhododendrone0
Treatment: biochare5
Interactor: LysobacterLysobactere4other
Outcome: N-competing bacteriae4
Direction: suppressinge4

Not reportedComparator

Verbatim

e0
“Rhododendron, an important acidophilic plant”
✓ located verbatim in the source · abstract, characters 0–44

e4
“suppressing N-competing bacteria (e.g., Lysobacter ) and pathogenic fungi (e.g., Dactylonectria )”
✓ located verbatim in the source · abstract, characters 841–938

e5
“Illumina HiSeq sequencing revealed that biochar reshaped the soil microbial community”
✓ located verbatim in the source · abstract, characters 743–828

Title

Biochar altered microbial nitrogen transformation and enhanced plant nitrogen utilization efficiency in an alkaline soil

Huimin Zhou; Guoxi Chen; Ying Zhang; et al. Journal of Environmental Management 2026. doi:10.1016/j.jenvman.2026.129308

Other claims from this paper (14)

Intervention effect Biochar amendment dose-dependently enhanced total fine root length of Rhododendron by 57.2–85.4%.
Intervention effect Biochar amendment enhanced plant nitrogen use efficiency of Rhododendron by 94.2–199%.
Intervention effect Biochar amendment increased the fungal-to-bacterial ratio and mycorrhizal colonization of Rhododendron roots.
Intervention effect Biochar suppressed pathogenic fungi (Dactylonectria) in the Rhododendron soil.
Intervention effect Biochar enriched beneficial fungi (Condenascus) in the Rhododendron soil.
Intervention effect Biochar enriched copiotrophic bacteria (Pseudomonas) in the Rhododendron soil.
Intervention effect Biochar enhanced the abundance of ammonia-oxidizing bacteria (AOB) in the Rhododendron soil.
Intervention effect Biochar reduced nirS gene abundance in the Rhododendron soil.
Intervention effect Biochar increased potential nitrification in the Rhododendron soil.
Intervention effect Biochar decreased denitrification activity in the Rhododendron soil.
Intervention effect At higher application rates (4%–8%) biochar decreased the (nirS + nirK)/nosZ ratio, indicating a potential reduction in N2O emissions.
Association Soil fertility was associated with AOB abundance in the Rhododendron soil (partial least squares path model).
Association Soil pH was linked to nirS in the Rhododendron soil (partial least squares path model).
Mechanism Both AOB-related and nirS-related pathways ultimately govern nitrogen use efficiency of Rhododendron (author interpretation).

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biochar enriched beneficial fungi (Condenascus) in the Rhododendron soil.

Taxon: RhododendronRhododendrone0
Treatment: biochare5
Interactor: CondenascusCondenascuse7other
Outcome: beneficial fungie7
Direction: enrichinge7

Not reportedComparator

Verbatim

e0
“Rhododendron, an important acidophilic plant”
✓ located verbatim in the source · abstract, characters 0–44

e5
“Illumina HiSeq sequencing revealed that biochar reshaped the soil microbial community”
✓ located verbatim in the source · abstract, characters 743–828

e7
“enriching beneficial fungi (e.g., Condenascus ) and copiotrophic bacteria (e.g., Pseudomonas )”
✓ located verbatim in the source · abstract, characters 948–1042

Title

Biochar altered microbial nitrogen transformation and enhanced plant nitrogen utilization efficiency in an alkaline soil

Huimin Zhou; Guoxi Chen; Ying Zhang; et al. Journal of Environmental Management 2026. doi:10.1016/j.jenvman.2026.129308

Other claims from this paper (14)

Intervention effect Biochar amendment dose-dependently enhanced total fine root length of Rhododendron by 57.2–85.4%.
Intervention effect Biochar amendment enhanced plant nitrogen use efficiency of Rhododendron by 94.2–199%.
Intervention effect Biochar amendment increased the fungal-to-bacterial ratio and mycorrhizal colonization of Rhododendron roots.
Intervention effect Biochar suppressed pathogenic fungi (Dactylonectria) in the Rhododendron soil.
Intervention effect Biochar suppressed N-competing bacteria (Lysobacter) in the Rhododendron soil.
Intervention effect Biochar enriched copiotrophic bacteria (Pseudomonas) in the Rhododendron soil.
Intervention effect Biochar enhanced the abundance of ammonia-oxidizing bacteria (AOB) in the Rhododendron soil.
Intervention effect Biochar reduced nirS gene abundance in the Rhododendron soil.
Intervention effect Biochar increased potential nitrification in the Rhododendron soil.
Intervention effect Biochar decreased denitrification activity in the Rhododendron soil.
Intervention effect At higher application rates (4%–8%) biochar decreased the (nirS + nirK)/nosZ ratio, indicating a potential reduction in N2O emissions.
Association Soil fertility was associated with AOB abundance in the Rhododendron soil (partial least squares path model).
Association Soil pH was linked to nirS in the Rhododendron soil (partial least squares path model).
Mechanism Both AOB-related and nirS-related pathways ultimately govern nitrogen use efficiency of Rhododendron (author interpretation).

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Biochar enriched copiotrophic bacteria (Pseudomonas) in the Rhododendron soil.

Taxon: RhododendronRhododendrone0
Treatment: biochare5
Interactor: PseudomonasPseudomonase7other
Outcome: copiotrophic bacteriae7
Direction: enrichinge7

Not reportedComparator

Verbatim

e0
“Rhododendron, an important acidophilic plant”
✓ located verbatim in the source · abstract, characters 0–44

e5
“Illumina HiSeq sequencing revealed that biochar reshaped the soil microbial community”
✓ located verbatim in the source · abstract, characters 743–828

e7
“enriching beneficial fungi (e.g., Condenascus ) and copiotrophic bacteria (e.g., Pseudomonas )”
✓ located verbatim in the source · abstract, characters 948–1042

Title

Biochar altered microbial nitrogen transformation and enhanced plant nitrogen utilization efficiency in an alkaline soil

Huimin Zhou; Guoxi Chen; Ying Zhang; et al. Journal of Environmental Management 2026. doi:10.1016/j.jenvman.2026.129308

Other claims from this paper (14)

Intervention effect Biochar amendment dose-dependently enhanced total fine root length of Rhododendron by 57.2–85.4%.
Intervention effect Biochar amendment enhanced plant nitrogen use efficiency of Rhododendron by 94.2–199%.
Intervention effect Biochar amendment increased the fungal-to-bacterial ratio and mycorrhizal colonization of Rhododendron roots.
Intervention effect Biochar suppressed pathogenic fungi (Dactylonectria) in the Rhododendron soil.
Intervention effect Biochar suppressed N-competing bacteria (Lysobacter) in the Rhododendron soil.
Intervention effect Biochar enriched beneficial fungi (Condenascus) in the Rhododendron soil.
Intervention effect Biochar enhanced the abundance of ammonia-oxidizing bacteria (AOB) in the Rhododendron soil.
Intervention effect Biochar reduced nirS gene abundance in the Rhododendron soil.
Intervention effect Biochar increased potential nitrification in the Rhododendron soil.
Intervention effect Biochar decreased denitrification activity in the Rhododendron soil.
Intervention effect At higher application rates (4%–8%) biochar decreased the (nirS + nirK)/nosZ ratio, indicating a potential reduction in N2O emissions.
Association Soil fertility was associated with AOB abundance in the Rhododendron soil (partial least squares path model).
Association Soil pH was linked to nirS in the Rhododendron soil (partial least squares path model).
Mechanism Both AOB-related and nirS-related pathways ultimately govern nitrogen use efficiency of Rhododendron (author interpretation).

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Biochar enhanced the abundance of ammonia-oxidizing bacteria (AOB) in the Rhododendron soil.

Taxon: RhododendronRhododendrone0
Treatment: biochare1
Interactor: ammonia-oxidizing bacteria (AOB)Nitrosomonadalese1other
Outcome: ammonia-oxidizing bacteria (AOB) abundancee1
Direction: enhancede1

Not reportedComparator

Verbatim

e0
“Rhododendron, an important acidophilic plant”
✓ located verbatim in the source · abstract, characters 0–44

e1
“biochar enhanced ammonia-oxidizing bacteria (AOB) abundance but reduced nirS abundance, with concurrent increases in potential nitrification and decreases in denitrification activity”
✓ located verbatim in the source · abstract, characters 1111–1293

Title

Biochar altered microbial nitrogen transformation and enhanced plant nitrogen utilization efficiency in an alkaline soil

Huimin Zhou; Guoxi Chen; Ying Zhang; et al. Journal of Environmental Management 2026. doi:10.1016/j.jenvman.2026.129308

Other claims from this paper (14)

Intervention effect Biochar amendment dose-dependently enhanced total fine root length of Rhododendron by 57.2–85.4%.
Intervention effect Biochar amendment enhanced plant nitrogen use efficiency of Rhododendron by 94.2–199%.
Intervention effect Biochar amendment increased the fungal-to-bacterial ratio and mycorrhizal colonization of Rhododendron roots.
Intervention effect Biochar suppressed pathogenic fungi (Dactylonectria) in the Rhododendron soil.
Intervention effect Biochar suppressed N-competing bacteria (Lysobacter) in the Rhododendron soil.
Intervention effect Biochar enriched beneficial fungi (Condenascus) in the Rhododendron soil.
Intervention effect Biochar enriched copiotrophic bacteria (Pseudomonas) in the Rhododendron soil.
Intervention effect Biochar reduced nirS gene abundance in the Rhododendron soil.
Intervention effect Biochar increased potential nitrification in the Rhododendron soil.
Intervention effect Biochar decreased denitrification activity in the Rhododendron soil.
Intervention effect At higher application rates (4%–8%) biochar decreased the (nirS + nirK)/nosZ ratio, indicating a potential reduction in N2O emissions.
Association Soil fertility was associated with AOB abundance in the Rhododendron soil (partial least squares path model).
Association Soil pH was linked to nirS in the Rhododendron soil (partial least squares path model).
Mechanism Both AOB-related and nirS-related pathways ultimately govern nitrogen use efficiency of Rhododendron (author interpretation).

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Biochar reduced nirS gene abundance in the Rhododendron soil.

Taxon: RhododendronRhododendrone0
Treatment: biochare1
Gene: nirSe1
Outcome: nirS abundancee1
Direction: reducede1

Not reportedComparator

Verbatim

e0
“Rhododendron, an important acidophilic plant”
✓ located verbatim in the source · abstract, characters 0–44

e1
“biochar enhanced ammonia-oxidizing bacteria (AOB) abundance but reduced nirS abundance, with concurrent increases in potential nitrification and decreases in denitrification activity”
✓ located verbatim in the source · abstract, characters 1111–1293

Title

Biochar altered microbial nitrogen transformation and enhanced plant nitrogen utilization efficiency in an alkaline soil

Huimin Zhou; Guoxi Chen; Ying Zhang; et al. Journal of Environmental Management 2026. doi:10.1016/j.jenvman.2026.129308

Other claims from this paper (14)

Intervention effect Biochar amendment dose-dependently enhanced total fine root length of Rhododendron by 57.2–85.4%.
Intervention effect Biochar amendment enhanced plant nitrogen use efficiency of Rhododendron by 94.2–199%.
Intervention effect Biochar amendment increased the fungal-to-bacterial ratio and mycorrhizal colonization of Rhododendron roots.
Intervention effect Biochar suppressed pathogenic fungi (Dactylonectria) in the Rhododendron soil.
Intervention effect Biochar suppressed N-competing bacteria (Lysobacter) in the Rhododendron soil.
Intervention effect Biochar enriched beneficial fungi (Condenascus) in the Rhododendron soil.
Intervention effect Biochar enriched copiotrophic bacteria (Pseudomonas) in the Rhododendron soil.
Intervention effect Biochar enhanced the abundance of ammonia-oxidizing bacteria (AOB) in the Rhododendron soil.
Intervention effect Biochar increased potential nitrification in the Rhododendron soil.
Intervention effect Biochar decreased denitrification activity in the Rhododendron soil.
Intervention effect At higher application rates (4%–8%) biochar decreased the (nirS + nirK)/nosZ ratio, indicating a potential reduction in N2O emissions.
Association Soil fertility was associated with AOB abundance in the Rhododendron soil (partial least squares path model).
Association Soil pH was linked to nirS in the Rhododendron soil (partial least squares path model).
Mechanism Both AOB-related and nirS-related pathways ultimately govern nitrogen use efficiency of Rhododendron (author interpretation).