Paper · 2015 · Plant Genetic Resources

Assessment of the variability of Senegalese landraces for phenology and sugar yield components to broaden the genetic pool of multi-purpose sorghum

Thierry Klanvi Tovignan; Delphine Luquet; Daniel Fonceka; et al.

11
claims
25
verbatim quotes
5
citations
3
research areas
—
Not open access

Abstract

Sweet sorghum is highly coveted to contribute and take up food and energy challenges. A collection of 84 West Africa landraces mostly from Senegal and four control cultivars were screened to identify relevant accessions and trait combination for multi-purpose (sugar/grain/biomass). The implication of photoperiod sensitivity was particularly addressed. A total of 20 traits related to phenology, morphology, grain and sugar production were assessed in two sowing dates (July and August) at CNRA Bambey in Senegal. Late sowing resulted in shortened vegetative phase and a significant decrease in traits related to plant size, stem sugar, biomass and grain productions. Broad-sense heritability was moderate to high for most of the phenology, morphology, grain and sugar-related traits, suggesting their interest for breeding. All the traits related to plant size were positively correlated with plant sugar production except plant height. A cluster analysis identified three groups contrasting in their ability to combine sugar, grain or fodder production based on 18 traits measured for the early sowing. Clusters I and III were suitable for one purpose: grain and sugar, respectively. Cluster II was the most suitable for multi-purpose, showing the best trade-off among grain, sugar and vegetative biomass production. The best accessions for stem sugar yield belonged to durra, caudatum and their intermediate types. The relationship between internode size and sweetness should be further studied, in particular exploring their relationship with internode tissue anatomy. Further studies are also needed to evaluate the role that stay-green can play in sugar yield maintenance under post-flowering drought.

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Claims 11

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Late sowing shortened the vegetative phase of sorghum.

Taxon
sorghumSorghumt0
Organ / stage
vegetative phasee1
Treatment
Late sowinge1
Outcome
vegetative phasee1
Direction
shortenede1
Setting
CNRA Bambey in Senegale2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e1

“Late sowing resulted in shortened vegetative phase and a significant decrease in traits related to plant size, stem sugar, biomass and grain productions”

✓ located verbatim in the source · abstract, characters 515–667 · show in text ↑
e2

“assessed in two sowing dates (July and August) at CNRA Bambey in Senegal”

✓ located verbatim in the source · abstract, characters 441–513 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Late sowing significantly decreased traits related to plant size in sorghum.

Taxon
sorghumSorghumt0
Treatment
Late sowinge1
Outcome
traits related to plant sizee1
Direction
decreasee1
Setting
CNRA Bambey in Senegale2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e1

“Late sowing resulted in shortened vegetative phase and a significant decrease in traits related to plant size, stem sugar, biomass and grain productions”

✓ located verbatim in the source · abstract, characters 515–667 · show in text ↑
e2

“assessed in two sowing dates (July and August) at CNRA Bambey in Senegal”

✓ located verbatim in the source · abstract, characters 441–513 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Late sowing significantly decreased stem sugar, biomass and grain production in sorghum.

Taxon
sorghumSorghumt0
Treatment
Late sowinge1
Outcome
stem sugar, biomass and grain productionse1
Direction
decreasee1
Setting
CNRA Bambey in Senegale2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e1

“Late sowing resulted in shortened vegetative phase and a significant decrease in traits related to plant size, stem sugar, biomass and grain productions”

✓ located verbatim in the source · abstract, characters 515–667 · show in text ↑
e2

“assessed in two sowing dates (July and August) at CNRA Bambey in Senegal”

✓ located verbatim in the source · abstract, characters 441–513 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Broad-sense heritability was moderate to high for most phenology, morphology, grain and sugar-related traits of sorghum.

Taxon
sorghumSorghumt0
Outcome
Broad-sense heritabilitye3
Value
moderate to highe3
Qualifier
for most of the phenology, morphology, grain and sugar-related traitse3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e3

“Broad-sense heritability was moderate to high for most of the phenology, morphology, grain and sugar-related traits”

✓ located verbatim in the source · abstract, characters 669–784 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Traits related to plant size were positively correlated with plant sugar production in sorghum, except plant height.

Taxon
sorghumSorghumt0
Treatment
traits related to plant sizee4
Outcome
plant sugar productione4
Direction
positively correlatede4
Qualifier
except plant heighte4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e4

“All the traits related to plant size were positively correlated with plant sugar production except plant height”

✓ located verbatim in the source · abstract, characters 826–937 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

A cluster analysis of 18 early-sown traits identified three groups of sorghum contrasting in their ability to combine sugar, grain or fodder production.

Taxon
sorghumSorghumt0
Outcome
ability to combine sugar, grain or fodder productione5
Value
three groupse5
Qualifier
based on 18 traits measured for the early sowinge5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e5

“A cluster analysis identified three groups contrasting in their ability to combine sugar, grain or fodder production based on 18 traits measured for the early sowing”

✓ located verbatim in the source · abstract, characters 939–1104 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cluster I was suitable for grain production.

Taxon
sorghumSorghumt0
Material
Clusters Ie6
Outcome
suitable for one purposee6
Qualifier
graine6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e6

“Clusters I and III were suitable for one purpose: grain and sugar, respectively”

✓ located verbatim in the source · abstract, characters 1106–1185 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cluster III was suitable for sugar production.

Taxon
sorghumSorghumt0
Material
IIIe6
Outcome
suitable for one purposee6
Qualifier
sugare6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e6

“Clusters I and III were suitable for one purpose: grain and sugar, respectively”

✓ located verbatim in the source · abstract, characters 1106–1185 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Cluster II was the most suitable for multi-purpose use of sorghum, with the best trade-off among grain, sugar and vegetative biomass production.

Taxon
sorghumSorghumt0
Material
Cluster IIe7
Outcome
most suitable for multi-purposee7
Qualifier
best trade-off among grain, sugar and vegetative biomass productione7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e7

“Cluster II was the most suitable for multi-purpose, showing the best trade-off among grain, sugar and vegetative biomass production”

✓ located verbatim in the source · abstract, characters 1187–1318 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The best accessions for stem sugar yield belonged to durra, caudatum and their intermediate types of sorghum.

Taxon
sorghumSorghumt0
Material
durra, caudatum and their intermediate typese7
Outcome
best accessions for stem sugar yielde7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e7

“The best accessions for stem sugar yield belonged to durra, caudatum and their intermediate types”

✓ located verbatim in the source · abstract, characters 1320–1417 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors suggest that the sorghum traits have interest for breeding.

Taxon
sorghumSorghumt0
Outcome
interest for breedinge7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“multi-purpose sorghum”

✓ located verbatim in the source · title, characters 126–147 · show in text ↑
e7

“suggesting their interest for breeding”

✓ located verbatim in the source · abstract, characters 786–824 · show in text ↑

sowing time · growth · SorghumPositive and negative results

24 papers: 15 positive, 9 negative or no effect

8 papers in the same direction as this paper · 15 in the opposite direction

  1. positive
  2. positive
  3. positive

20 papers more in this group

See all 24 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.