Abstract
The recent availability of soybean cultivars with resistance to dicamba herbicide has increased the risk of injury in susceptible cultivars, mainly as a result of particle drift. To predict and identify the damage caused by this herbicide requires great accuracy. The objective of this work was to evaluate the injury caused by the simulated drift of dicamba on soybean (nonresistant to dicamba) plants assessed visually and using the Triangular Greenness Index (TGI) from images obtained from Remotely Piloted Aircraft (RPA). The study was conducted in a randomized complete block design with four replications during the 2019/2020 growing season, and the treatments consisted of the application of six doses of dicamba (0, 0.28, 0.56, 5.6, 28, and 112 g acid equivalent dicamba ha−1) on soybean plants at the third node growth stage. For the evaluation of treatments using the TGI technique, spectral data acquired through a Red Green Blue (RGB) sensor attached to an RPA was used. The variables studied were the visual estimation of injury, TGI response at 7 and 21 days after application, plant height, and crop yield. The exposure to the herbicide caused a reduction in plant height and crop yield. Vegetation indices, such as TGI, have the potential to be used in the evaluation of injury caused by dicamba, and may be used to cover large areas in a less subjective way than visual assessments.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 3
Claim · model-written summary
Dicamba exposure reduced soybean plant height.
- Taxon
- soybean
Glycine maxe1 - Treatment
- six doses of dicamba (0, 0.28, 0.56, 5.6, 28, and 112 g acid equivalent dicamba ha−1)e1
- Outcome
- plant heighte0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The exposure to the herbicide caused a reduction in plant height and crop yield.”
e1“six doses of dicamba (0, 0.28, 0.56, 5.6, 28, and 112 g acid equivalent dicamba ha−1) on soybean plants”
Claim · model-written summary
Dicamba exposure reduced soybean crop yield.
- Taxon
- soybeanGlycine maxe1
- Treatment
- six doses of dicamba (0, 0.28, 0.56, 5.6, 28, and 112 g acid equivalent dicamba ha−1)e1
- Outcome
- crop yielde0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The exposure to the herbicide caused a reduction in plant height and crop yield.”
e1“six doses of dicamba (0, 0.28, 0.56, 5.6, 28, and 112 g acid equivalent dicamba ha−1) on soybean plants”
Claim · model-written summary
The authors considered TGI vegetation indices potentially useful for assessing dicamba injury over large areas with less subjectivity than visual assessment.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- evaluation of injury caused by dicambae0
- Qualifier
- have the potentiale0
- Comparator
- visual assessmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vegetation indices, such as TGI, have the potential to be used in the evaluation of injury caused by dicamba, and may be used to cover large areas in a less subjective way than visual assessments.”
t0“Soybean”
The same questions in other papers
dicamba · growth · Glycine max (soybean)Results differ
19 papers in the same direction as this paper · 10 in the opposite direction
- positive
- negative
- negative
26 papers more in this group
See all 30 papers →dicamba · yield · Glycine max (soybean)Results differ
37 papers in the same direction as this paper · 11 in the opposite direction
- positive
- negative
- negative
45 papers more in this group
See all 49 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.