Abstract
Abstract Early literature on peanut [ Arachis hypogcrea (L.)] indicates the existence of two forms of root hairs: (i) a rosette form of root hair (4 mm long) occurring; radially where a lateral root initiates from a primary root, and (ii) shorter (0.30 mm), more profuse root hairs occurring along root lengths usually behind the root tip. Since little is known about the factors that influence peanut root hair formation, the purpose of this study was to quantify root hair formation under various soils and water stress conditions. Separate rhizotron, field, and greenhouse studies were conducted. The rhizotron study showed no differences in the percentage of roots having root hairs regardless of water stress treatments imposed 20 to 50 and 50 to 80 days after planting (DAP). Thirty‐seven to 43% of the roots had root hairs. In the field, peanut root systems growing within dialysis root bags in a Tifton loamy sand (fine‐loamy, siliceous, thermic Plinthic Kandiudults) showed a significant increase in root hair formation from 7% at 70 DAP to 31% at harvest. In the greenhouse using three soil types, Greenville fine sandy loam (clayey, kaolinitic, thermic Rhodic Kandiudults), Tifton loamy sand, and a 4:1 coarse sand:fritted clay mixture (rhizotron), soil type was found to affect the percentage of roots having root hairs. Roots growing in the Tifton, sand:fritted clay mixture, and Greenville soils had 47, 17, and 14% root hairs, respectively. In all studies, the rosette form of root hair around lateral initiates was observed. Approximately 66% of the lateral initiates expressed rosette‐type root hairs. Mycorrhizal infection, though insufficient to significantly affect nutrient uptake, was greater with the rhizotron (18%) than the Greenville (6%) and Tifton soils (3%). There may be a possible interaction between root hair occurrence and mycorrhizae infection.
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Claims 12
Claim · model-written summary
Water stress imposed 20 to 50 and 50 to 80 days after planting did not change the percentage of peanut roots with root hairs in the rhizotron study.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- water stress treatments imposed 20 to 50 and 50 to 80 days after plantinge1
- Outcome
- percentage of roots having root hairse1
- Direction
- no differencese1
- Setting
- rhizotrone1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e1“The rhizotron study showed no differences in the percentage of roots having root hairs regardless of water stress treatments imposed 20 to 50 and 50 to 80 days after planting”
Claim · model-written summary
Thirty-seven to 43% of peanut roots had root hairs.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- root hairse2
- Value
- Thirty‐seven to 43%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e2“Thirty‐seven to 43% of the roots had root hairs”
Claim · model-written summary
In the field, peanut root hair formation increased significantly from 7% at 70 DAP to 31% at harvest.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- root hair formatione2
- Direction
- increasee2
- Value
- 7% at 70 DAP to 31% at harveste2
- Setting
- In the fielde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e1“In the field, peanut root systems growing within dialysis root bags in a Tifton loamy sand”
e2“showed a significant increase in root hair formation from 7% at 70 DAP to 31% at harvest”
Claim · model-written summary
Soil type was found to affect the percentage of peanut roots with root hairs in the greenhouse.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- three soil typese4
- Outcome
- percentage of roots having root hairse4
- Setting
- greenhousee4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e4“In the greenhouse using three soil types, Greenville fine sandy loam (clayey, kaolinitic, thermic Rhodic Kandiudults), Tifton loamy sand, and a 4:1 coarse sand:fritted clay mixture (rhizotron), soil type was found to affect the percentage of roots having root hairs”
Claim · model-written summary
Roots growing in Tifton soil had 47% root hairs.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- root hairse5
- Value
- 47e5
- Qualifier
- Tiftone5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e5“Roots growing in the Tifton, sand:fritted clay mixture, and Greenville soils had 47, 17, and 14% root hairs, respectively”
Claim · model-written summary
Roots growing in sand:fritted clay mixture had 17% root hairs.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- root hairse5
- Value
- 17e5
- Qualifier
- sand:fritted clay mixturee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e5“Roots growing in the Tifton, sand:fritted clay mixture, and Greenville soils had 47, 17, and 14% root hairs, respectively”
Claim · model-written summary
Roots growing in Greenville soil had 14% root hairs.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- root hairse5
- Value
- 14e5
- Qualifier
- Greenville soilse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e5“Roots growing in the Tifton, sand:fritted clay mixture, and Greenville soils had 47, 17, and 14% root hairs, respectively”
Claim · model-written summary
Approximately 66% of lateral initiates expressed rosette-type root hairs.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- rosette‐type root hairse6
- Value
- 66%e6
- Qualifier
- lateral initiatese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e6“Approximately 66% of the lateral initiates expressed rosette‐type root hairs”
Claim · model-written summary
The rosette form of root hair around lateral root initiates was observed in all peanut studies.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- rosette form of root hair around lateral initiatese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e7“In all studies, the rosette form of root hair around lateral initiates was observed”
Claim · model-written summary
Mycorrhizal infection was insufficient to significantly affect peanut nutrient uptake.
- Taxon
- peanutArachis hypogaeae0
- Interactor
- mycorrhizaee2symbiont
- Outcome
- nutrient uptakee1
- Direction
- insufficient to significantly affecte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e1“Mycorrhizal infection, though insufficient to significantly affect nutrient uptake, was greater with the rhizotron (18%) than the Greenville (6%) and Tifton soils (3%)”
e2“There may be a possible interaction between root hair occurrence and mycorrhizae infection”
Claim · model-written summary
Mycorrhizal infection of peanut roots was greater in the rhizotron (18%) than in Greenville (6%) and Tifton soils (3%).
- Taxon
- peanutArachis hypogaeae0
- Interactor
- mycorrhizaee2symbiont
- Outcome
- Mycorrhizal infectione1
- Direction
- greatere1
- Value
- 18%e1
- Comparator
- Greenvillee1
- Setting
- rhizotrone1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e1“Mycorrhizal infection, though insufficient to significantly affect nutrient uptake, was greater with the rhizotron (18%) than the Greenville (6%) and Tifton soils (3%)”
e2“There may be a possible interaction between root hair occurrence and mycorrhizae infection”
Claim · model-written summary
Root hair occurrence and mycorrhizal infection may interact in peanut.
- Taxon
- peanutArachis hypogaeae0
- Interactor
- mycorrhizaee1symbiont
- Outcome
- root hair occurrencee1
- Qualifier
- possible interactione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early literature on peanut [ Arachis hypogcrea (L.)]”
e1“There may be a possible interaction between root hair occurrence and mycorrhizae infection”
The same questions in other papers
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