Abstract
Witchweed ( Striga spp.) infestations are the greatest obstacle to sorghum [ Sorghum bicolor (L.) Moench] grain production in many areas in Africa. The objective of this study was to evaluate the efficacy of herbicide seed treatments for controlling Striga infestation of sorghum. Seeds of an acetolactate synthase (ALS) herbicide–tolerant sorghum hybrid were treated with two ALS‐inhibiting herbicides. Treatments included three rates of imazapyr (IMI), three rates of metsulfuron‐methyl (MET), and an untreated control group. In greenhouse trials, observations at 32, 46, and 60 d after planting showed that seeds treated with the highest herbicide rates had the fewest Striga attachments and the greatest delay in attachment. All plants in the untreated group died at or before sorghum flowering; however, herbicide seed treatments, particularly metsulfuron, reduced Striga emergence and significantly increased sorghum grain yield and dry matter production. Field studies comparing seed treatments produced similar results with delayed Striga emergence and fewer emerged Striga plants in herbicide‐treated plots. These studies indicate that herbicide seed treatments may provide a highly effective tool for managing Striga in sorghum.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 8
Claim · model-written summary
High herbicide rates led to the fewest Striga attachments.
Sorghum
StrigaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum hybrid were treated with two ALS‐inhibiting herbicides”
e1“seeds treated with the highest herbicide rates had the fewest Striga attachments”
Claim · model-written summary
High herbicide rates gave the greatest delay in Striga attachment.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum hybrid were treated with two ALS‐inhibiting herbicides”
e1“seeds treated with the highest herbicide rates had the fewest Striga attachments and the greatest delay in attachment”
Claim · model-written summary
Untreated sorghum plants died by flowering.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All plants in the untreated group died at or before sorghum flowering”
Claim · model-written summary
Herbicide seed treatments reduced Striga emergence.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“herbicide seed treatments, particularly metsulfuron, reduced Striga emergence”
e1“sorghum hybrid were treated with two ALS‐inhibiting herbicides”
Claim · model-written summary
Herbicide seed treatments significantly increased sorghum grain yield and dry matter production.
- Treatment
- herbicide seed treatmentse0
- Outcome
- sorghum grain yield and dry matter productione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“herbicide seed treatments, particularly metsulfuron, reduced Striga emergence and significantly increased sorghum grain yield and dry matter production”
Claim · model-written summary
Field seed treatments delayed Striga emergence.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field studies comparing seed treatments produced similar results with delayed Striga emergence”
e1“sorghum grain yield”
Claim · model-written summary
Field seed treatments yielded fewer emerged Striga plants.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fewer emerged Striga plants in herbicide‐treated plots”
e1“sorghum grain yield”
Claim · model-written summary
The authors suggest herbicide seed treatments as a Striga management tool in sorghum.
- Outcome
- managing Striga in sorghume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“herbicide seed treatments may provide a highly effective tool for managing Striga in sorghum”
The same questions in other papers
herbicide · yield · SorghumResults differ
51 papers in the same direction as this paper · 11 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- negative
- no effect
62 papers more in this group
See all 66 papers →herbicide · Striga · SorghumPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
seed treatment · yield · SorghumPositive and negative results
33 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
32 papers more in this group
See all 36 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.