Paper · 2018 · Journal of Seed Science

Yield, germination and herbicide residue in seeds of preharvest desiccated wheat

Lais Tessari Perboni; Dirceu Agostinetto; Leandro Vargas; et al.

6
claims
6
verbatim quotes
14
citations
2
research areas
✓
Open access · cc-by

Abstract

Abstract: The goals of this study were to evaluate herbicide application rates at different timings for preharvest desiccation of wheat (Trial 1), as well as to evaluate the effect of the timing of herbicide desiccation at preharvest and harvest timing (Trial 2) on yield, germination, and herbicide residue in wheat seed. In Trial 1, treatments consisted of two application rates of glufosinate, glyphosate, paraquat, or paraquat+diuron and a control without application; application time periods were in the milk grain to early dough stage, soft dough to hard dough stage, and hard dough stage. In Trial 2, treatments consisted of different application time periods (milk grain to early dough stage, and soft dough to hard dough stage), different herbicides (glufosinate, 2,4-D+glyphosate, and untreated control), and different harvest times (5, 10 and 15 days after herbicide application). One thousand seeds weight, yield, first and final germination count, and herbicide residue on seeds were evaluated. Preharvest desiccation with paraquat, glufosinate, and 2,4-D+glyphosate at the milk grain to early dough stage reduces wheat yield. Regardless of the herbicide and application rate, application in the milk grain to early dough stage and soft dough to hard dough stage provides greater germination of wheat seeds, except at the lower dose of paraquat. Systemic herbicides accumulate more in wheat seeds.

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 6

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Paraquat applied at milk grain to early dough stage reduced wheat yield.

Organ / stage
milk grain to early dough stagee0
Treatment
paraquate0
Outcome
wheat yielde0
Direction
reducese0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Preharvest desiccation with paraquat, glufosinate, and 2,4-D+glyphosate at the milk grain to early dough stage reduces wheat yield”

✓ located verbatim in the source · abstract, characters 1009–1139 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Glufosinate applied at milk grain to early dough stage reduced wheat yield.

Organ / stage
milk grain to early dough stagee0
Treatment
glufosinatee0
Outcome
wheat yielde0
Direction
reducese0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Preharvest desiccation with paraquat, glufosinate, and 2,4-D+glyphosate at the milk grain to early dough stage reduces wheat yield”

✓ located verbatim in the source · abstract, characters 1009–1139 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

2,4-D+glyphosate applied at milk grain to early dough stage reduced wheat yield.

Organ / stage
milk grain to early dough stagee0
Treatment
2,4-D+glyphosatee0
Outcome
wheat yielde0
Direction
reducese0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Preharvest desiccation with paraquat, glufosinate, and 2,4-D+glyphosate at the milk grain to early dough stage reduces wheat yield”

✓ located verbatim in the source · abstract, characters 1009–1139 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Early herbicide application gave greater wheat seed germination except at low paraquat dose.

Treatment
application in the milk grain to early dough stagee0
Outcome
germination of wheat seedse0
Direction
greatere0
Qualifier
except at the lower dose of paraquate0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Regardless of the herbicide and application rate, application in the milk grain to early dough stage and soft dough to hard dough stage provides greater germination of wheat seeds, except at the lower dose of paraquat”

✓ located verbatim in the source · abstract, characters 1141–1358 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soft-dough to hard-dough herbicide application gave greater wheat seed germination except at low paraquat dose.

Treatment
soft dough to hard dough stagee0
Outcome
germination of wheat seedse0
Direction
greatere0
Qualifier
except at the lower dose of paraquate0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Regardless of the herbicide and application rate, application in the milk grain to early dough stage and soft dough to hard dough stage provides greater germination of wheat seeds, except at the lower dose of paraquat”

✓ located verbatim in the source · abstract, characters 1141–1358 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Systemic herbicides accumulated more in wheat seeds.

Outcome
herbicides accumulate more in wheat seedse0
Direction
moree0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Systemic herbicides accumulate more in wheat seeds”

✓ located verbatim in the source · abstract, characters 1360–1410 · show in text ↑

2,4-D · yield · Triticum aestivum (wheat)Results differ

116 papers: 78 positive, 38 negative or no effect

37 papers in the same direction as this paper · 78 in the opposite direction

  1. positive
  2. positive
  3. positive

112 papers more in this group

See all 116 papers →

paraquat · yield · Triticum aestivum (wheat)Positive and negative results

8 papers: 5 positive, 3 negative or no effect

2 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

glufosinate · yield · Triticum aestivum (wheat)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 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.