Abstract
ABSTRACT The scarcity of registered herbicides that are effective in controlling monocotyledonous weeds is a risk for sorghum growing in Brazil. Therefore, this study aims to evaluate the tolerance of sorghum grain hybrids to the post-emergence application of tembotrione. Two experiments were carried out in the field in the Southwest of Goiás (Santa Helena de Goiás and Montividiu). Eleven grain sorghum hybrids were evaluated in Santa Helena de Goiás and three hybrids were evaluated in Montividiu, in association with five doses of tembotrione, always with the addition of atrazine to the application mixture. Herbicide treatments were applied in post-emergence when sorghum plants had six to seven leaves developed (V6/V7). Sorghum hybrids showed variations in tolerance to the herbicide tembotrione, demonstrating different responses in terms of phytotoxicity, plant height, stem diameter, shoot dry biomass and yield. Tembotrione causes reductions in the yield of grain sorghum, in average percentages ranging from 25.9 to 61.9%, depending on the dose used, demonstrating that it is not selective for the crop. The results obtained indicate low potential use of tembotrione for grain sorghum at the doses evaluated, in association with atrazine, in areas of soils with both more clayey texture and sandier texture.
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Claims 4
Claim · model-written summary
Sorghum hybrids varied in tembotrione tolerance across phytotoxicity, height, stem diameter, biomass and yield.
- Treatment
- herbicide tembotrionee0
- Outcome
- phytotoxicity, plant height, stem diameter, shoot dry biomass and yielde0
SorghumNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum hybrids showed variations in tolerance to the herbicide tembotrione, demonstrating different responses in terms of phytotoxicity, plant height, stem diameter, shoot dry biomass and yield.”
Claim · model-written summary
Tembotrione reduced sorghum grain yield by 25.9 to 61.9% depending on dose.
- Taxon
- grain sorghum
Sorghum bicolore0 - Treatment
- Tembotrionee0
- Outcome
- yielde0
- Direction
- reductionse0
- Value
- 25.9 to 61.9%e0
- Qualifier
- depending on the dose usede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tembotrione causes reductions in the yield of grain sorghum, in average percentages ranging from 25.9 to 61.9%, depending on the dose used”
Claim · model-written summary
The authors judged tembotrione nonselective for grain sorghum.
- Taxon
- grain sorghumSorghum bicolore1
- Outcome
- not selective for the crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is not selective for the crop”
e1“yield of grain sorghum”
Claim · model-written summary
The authors indicate low potential for tembotrione with atrazine at tested doses on both clayey and sandier soils.
- Taxon
- grain sorghumSorghum bicolore0
- Treatment
- tembotrionee0
- Outcome
- low potential use of tembotrionee0
- Qualifier
- at the doses evaluated, in association with atrazinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“low potential use of tembotrione for grain sorghum at the doses evaluated, in association with atrazine, in areas of soils with both more clayey texture and sandier texture”
The same questions in other papers
tembotrione · yield · Sorghum bicolor (sorghum)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- no effect
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.