Abstract
The increasing fodder demand in West African livestock production systems has prompted sorghum (Sorghum bicolor (L.) Moench) breeding programmes to develop dual-purpose varieties that produce grain for human consumption and fodder for livestock. This study examines the possibility of improving sorghum stalks quality of a photoperiodic variety, using two genes, which are known to improve straw digestibility by livestock. Three near-isogenic lines carrying either the brown midrib (bmr-12) allele, the juiciness (d) allele, or both alleles, were developed from an elite photoperiodic dual-purpose variety. Trials with three sowing dates were conducted from 2020 to 2021. Phenology, morphology and stem chemical composition were measured. Lines carrying bmr-12 allele showed a greater reduction in stem lignin content, than those carrying the 'd' allele alone. The two alleles have no cumulative effect on lignin content or stalk digestibility. Delayed sowing improved stalk digestibility significantly, but it is not an appropriate agronomic solution as it drastically reduces crop growth. The utilisation of the brown midrib trait appears to be a promising method of enhancing stalk digestibility; while preserving the climate adaptation provided by photoperiodism. These results pave way for new dual-purpose sorghum varieties in sub-Saharan Africa, contributing to the intensification of peri-urban livestock production.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Lines carrying the bmr-12 allele showed a greater reduction in stem lignin content than lines carrying the d allele alone.
- Material
- Lines carrying bmr-12 allelee0
- Treatment
- carrying bmr-12 allelee0
- Gene
- bmr-12e0
- Outcome
- stem lignin contente0
- Direction
- reductione0
- Comparator
- 'd' allelee0
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lines carrying bmr-12 allele showed a greater reduction in stem lignin content, than those carrying the 'd' allele alone”
t0“photoperiod-sensitive sorghum”
Claim · model-written summary
The two alleles had no cumulative effect on lignin content or stalk digestibility.
- Treatment
- The two allelese1
- Outcome
- cumulative effect on lignin content or stalk digestibilitye1
- Direction
- no cumulative effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The two alleles have no cumulative effect on lignin content or stalk digestibility”
t0“photoperiod-sensitive sorghum”
Claim · model-written summary
Delayed sowing significantly improved stalk digestibility.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Delayed sowing improved stalk digestibility significantly, but it is not an appropriate agronomic solution as it drastically reduces crop growth”
t0“photoperiod-sensitive sorghum”
Claim · model-written summary
Delayed sowing drastically reduces crop growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Delayed sowing improved stalk digestibility significantly, but it is not an appropriate agronomic solution as it drastically reduces crop growth”
t0“photoperiod-sensitive sorghum”
Claim · model-written summary
The brown midrib trait appears to be a promising method of enhancing stalk digestibility.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The utilisation of the brown midrib trait appears to be a promising method of enhancing stalk digestibility; while preserving the climate adaptation provided by photoperiodism”
t0“photoperiod-sensitive sorghum”
Claim · model-written summary
The brown midrib trait appears to preserve the climate adaptation provided by photoperiodism.
- Treatment
- brown midrib traite3
- Outcome
- climate adaptation provided by photoperiodisme3
- Direction
- preservinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The utilisation of the brown midrib trait appears to be a promising method of enhancing stalk digestibility; while preserving the climate adaptation provided by photoperiodism”
t0“photoperiod-sensitive sorghum”
Claim · model-written summary
The results pave the way for new dual-purpose sorghum varieties in sub-Saharan Africa.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“These results pave way for new dual-purpose sorghum varieties in sub-Saharan Africa”
t0“photoperiod-sensitive sorghum”
The same questions in other papers
sowing time · quality: grain · SorghumPositive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- positive
3 papers more in this group
See all 7 papers →sowing time · growth · SorghumPositive and negative results
8 papers in the same direction as this paper · 15 in the opposite direction
- positive
- positive
- 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.