Abstract
Root growth is an important component of plant growth but has received little attention by plant breeders because of difficulties associated with root observation. Improved root architecture and production are likely to improve pea ( Pisum sativum L.) production because they are often grown on marginal land and suffer from increased disease pressure and poor fertility. The objective of this study was to quantify the phenotypic variation in seedling root production among Pisum germplasm and to classify the root architecture observed. Seed of 330 accessions from the core collection of Pisum germplasm were germinated and grown under artificial conditions for 14 d and their root characters analyzed. Root systems were scanned and digitized by the WinRHIZO program. Data collected included taproot length, shoot length, and root and shoot dry weight. Data generated by WinRHIZO included total root length, surface area, average root diameter, and root volume. Taproot length ranged from 181 to 433 mm, while root and shoot dry weight ranged from 6 to 57 mg and 13 to 104 mg, respectively. Total root length ranged from 54 to 399 cm, root surface area ranged from 9 to 75 cm 2 , and root volume ranged from 0.11 to 1.12 cm 3 Seed weight was significantly correlated with all root characters with the exception of taproot length. Shoot and root dry weight were positively correlated with total root length, average root diameter, and root volume. PI 261631, an accession from Spain, produced the greatest total root length, had a root:shoot weight ratio of 0.79, and the largest root volume (1.12 cm 3 ). Plant breeders will be able to use the wide variation for root characters in their crossing and selection programs to modify root traits during cultivar development.
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Claims 11
Claim · model-written summary
Taproot length ranged from 181 to 433 mm.
- Taxon
- Pea
Lathyrus oleraceust0 - Outcome
- Taproot lengthe0
- Value
- 181 to 433 mme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Taproot length ranged from 181 to 433 mm”
t0“Pea Germplasm”
Claim · model-written summary
Root dry weight ranged from 6 to 57 mg.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- root and shoot dry weighte0
- Value
- 6 to 57 mge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root and shoot dry weight ranged from 6 to 57 mg and 13 to 104 mg, respectively”
t0“Pea Germplasm”
Claim · model-written summary
Shoot dry weight ranged from 13 to 104 mg.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- shoot dry weighte0
- Value
- 13 to 104 mge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root and shoot dry weight ranged from 6 to 57 mg and 13 to 104 mg, respectively”
t0“Pea Germplasm”
Claim · model-written summary
Total root length ranged from 54 to 399 cm.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- Total root lengthe0
- Value
- 54 to 399 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total root length ranged from 54 to 399 cm”
t0“Pea Germplasm”
Claim · model-written summary
Root surface area ranged from 9 to 75 cm 2.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- root surface areae0
- Value
- 9 to 75 cm 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root surface area ranged from 9 to 75 cm 2”
t0“Pea Germplasm”
Claim · model-written summary
Root volume ranged from 0.11 to 1.12 cm 3.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- root volumee0
- Value
- 0.11 to 1.12 cm 3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root volume ranged from 0.11 to 1.12 cm 3”
t0“Pea Germplasm”
Claim · model-written summary
Seed weight correlated significantly with root characters except taproot length.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- root characterse0
- Qualifier
- with the exception of taproot lengthe0
- Comparator
- Seed weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed weight was significantly correlated with all root characters with the exception of taproot length”
t0“Pea Germplasm”
Claim · model-written summary
Shoot and root dry weight correlated positively with total root length, average diameter, and root volume.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- total root length, average root diameter, and root volumee0
- Direction
- positivelye0
- Comparator
- Shoot and root dry weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot and root dry weight were positively correlated with total root length, average root diameter, and root volume”
t0“Pea Germplasm”
Claim · model-written summary
PI 261631 had the greatest total root length.
- Taxon
- PeaLathyrus oleraceust0
- Material
- PI 261631e0
- Outcome
- total root lengthe0
- Direction
- greateste0
- Setting
- Spaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PI 261631, an accession from Spain, produced the greatest total root length”
t0“Pea Germplasm”
Claim · model-written summary
PI 261631 had a root:shoot weight ratio of 0.79.
- Taxon
- PeaLathyrus oleraceust0
- Material
- PI 261631e1
- Outcome
- root:shoot weight ratioe0
- Value
- 0.79e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“had a root:shoot weight ratio of 0.79”
e1“PI 261631, an accession from Spain”
t0“Pea Germplasm”
Claim · model-written summary
PI 261631 had the largest root volume, 1.12 cm 3.
- Taxon
- PeaLathyrus oleraceust0
- Material
- PI 261631e0
- Outcome
- root volumee0
- Direction
- largeste0
- Value
- 1.12 cm 3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PI 261631, an accession from Spain, produced the greatest total root length, had a root:shoot weight ratio of 0.79, and the largest root volume (1.12 cm 3 )”
t0“Pea Germplasm”