Abstract
Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops and/or biofuel feedstocks for temperate climates. In field studies conducted at Urbana, IL, USA, fourteen USDA sorghum landrace accessions and three commercial sorghum accessions were evaluated for their growth habits and regrowth potential. In Canonical Discriminant Analysis (CDA) analysis, the first two canonical variates were significant and accounted for 86% of the among-accession variability. Unmown tiller number, regrowth tiller number, and regrowth biomass best discriminated between accessions in CDA and scattergrams. The accessions clustered into three subgroups. Three multi-stemmed accessions (two commercial varieties and one USDA accession) with an ability to regrow clustered away from the bulk of the USDA sorghums. Multi-stemmed accessions are useful for breeding improved summer annual cover crops that are tall, produce copious amounts of biomass, and rapidly regrow after defoliation; although propensity to lodging and poor germination of accessions will need attention. Additionally, landrace sorghum accessions in the USDA germplasm collection are useful for breeding cover crop and biofuel feedstocks, due to their great height and biomass production, although it will be necessary to select for improved regrowth potential. Crosses between USDA landraces and the commercially available multi-stemmed accessions could lead to a sorghum cover crop and biofuel plant with great biomass and height and ability to regrow following defoliation.
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Claims 9
Claim · model-written summary
Multi-stemmed sorghum accessions clustered away from the bulk of the USDA sorghum accessions.
- Material
- multi-stemmed accessionse1
- Outcome
- clusterede1
- Qualifier
- away from the bulk of the USDA sorghumse1
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops”
e1“Three multi-stemmed accessions (two commercial varieties and one USDA accession) with an ability to regrow clustered away from the bulk of the USDA sorghums”
Claim · model-written summary
The sorghum accessions clustered into three subgroups.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops”
e2“The accessions clustered into three subgroups”
Claim · model-written summary
The first two canonical variates accounted for 86% of among-accession variability in sorghum.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops”
e3“In Canonical Discriminant Analysis (CDA) analysis, the first two canonical variates were significant and accounted for 86% of the among-accession variability”
Claim · model-written summary
Unmown tiller number, regrowth tiller number and regrowth biomass best discriminated between sorghum accessions.
- Outcome
- Unmown tiller number, regrowth tiller number, and regrowth biomasse4
- Qualifier
- best discriminated between accessionse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops”
e4“Unmown tiller number, regrowth tiller number, and regrowth biomass best discriminated between accessions”
Claim · model-written summary
Multi-stemmed sorghum accessions are useful for breeding improved summer annual cover crops.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops”
e5“Multi-stemmed accessions are useful for breeding improved summer annual cover crops that are tall, produce copious amounts of biomass, and rapidly regrow after defoliation”
Claim · model-written summary
Propensity to lodging and poor germination are problems of sorghum accessions that need attention.
- Outcome
- propensity to lodging and poor germinatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops”
e6“propensity to lodging and poor germination of accessions will need attention”
Claim · model-written summary
Landrace sorghum accessions in the USDA germplasm collection are useful for breeding cover crops and biofuel feedstocks because of their great height and biomass production.
- Material
- landrace sorghum accessions in the USDA germplasm collectione7
- Outcome
- breeding cover crop and biofuel feedstockse7
- Qualifier
- great height and biomass productione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops”
e7“landrace sorghum accessions in the USDA germplasm collection are useful for breeding cover crop and biofuel feedstocks, due to their great height and biomass production”
Claim · model-written summary
Crosses between USDA landraces and multi-stemmed accessions could lead to a sorghum cover crop and biofuel plant with great biomass, height and regrowth.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops”
e1“Crosses between USDA landraces and the commercially available multi-stemmed accessions could lead to a sorghum cover crop and biofuel plant with great biomass and height and ability to regrow following defoliation”
Claim · model-written summary
Sorghum regrowth potential needs improvement through selection.
- Outcome
- improved regrowth potentiale1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypes of sorghum species (Sorghum sp.) have characteristics making them valuable summer annual cover crops”
e1“it will be necessary to select for improved regrowth potential”