Abstract
Naked oat (Avena sativa L.) harvested in the province of Quebec, Canada, develops on average 10% covered grains and sometimes more. The objective of this study was to determine the effect of soil type, herbicides and their application stages on the proportion of covered grains in naked oat genotypes. Three genotypes were evaluated over 2 yr at two experimental sites. At each site, trials were seeded on two different soil types and each entry was treated with one of three types of herbicides: bromoxynil/MCPA, dicamba/MCPA and thifensulfuron methyl/tribenuron methyl, and compared with a weed-free check. The herbicides were applied at Zadoks 12-13 and 22-23. Results showed that dicamba/MCPA herbicide, applied at Zadoks 12-13, increased covered grains compared with the weed-free check and more covered grains were produced with the application made at Zadoks 22-23. However, differences in genotype reactions were observed. Few differences were found among the other weed control treatments. The application of dicamba/MCPA at Zadoks 22-23 decreased yield and test weight, but increased kernel weight. The other weed control treatments had no effect on agronomic characteristics.Key words: Avena sativa, herbicide, dicamba/MCPA, soil type, covered grains
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Claims 7
Claim · model-written summary
Dicamba/MCPA herbicide applied at Zadoks 12-13 increased covered grains of naked oat compared with the weed-free check.
- Taxon
- Avena sativa
Avena sativae0 - Treatment
- dicamba/MCPA herbicide, applied at Zadoks 12-13e1
- Outcome
- covered grainse1
- Direction
- increasede1
- Comparator
- weed-free checke1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Naked oat (Avena sativa L.)”
e1“Results showed that dicamba/MCPA herbicide, applied at Zadoks 12-13, increased covered grains compared with the weed-free check”
Claim · model-written summary
Application at Zadoks 22-23 produced more covered grains in naked oat.
- Taxon
- Avena sativaAvena sativae0
- Treatment
- the application made at Zadoks 22-23e2
- Outcome
- covered grainse2
- Direction
- moree2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Naked oat (Avena sativa L.)”
e2“more covered grains were produced with the application made at Zadoks 22-23”
Claim · model-written summary
Genotype reactions differed among naked oat genotypes under the herbicide treatments.
- Taxon
- Avena sativaAvena sativae0
- Outcome
- genotype reactionse3
- Qualifier
- differencese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Naked oat (Avena sativa L.)”
e3“differences in genotype reactions were observed”
Claim · model-written summary
Dicamba/MCPA applied at Zadoks 22-23 decreased yield and test weight of naked oat.
- Taxon
- Avena sativaAvena sativae0
- Treatment
- dicamba/MCPA at Zadoks 22-23e4
- Outcome
- yield and test weighte4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Naked oat (Avena sativa L.)”
e4“The application of dicamba/MCPA at Zadoks 22-23 decreased yield and test weight, but increased kernel weight”
Claim · model-written summary
Dicamba/MCPA applied at Zadoks 22-23 increased kernel weight of naked oat.
- Taxon
- Avena sativaAvena sativae0
- Treatment
- dicamba/MCPA at Zadoks 22-23e4
- Outcome
- kernel weighte4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Naked oat (Avena sativa L.)”
e4“The application of dicamba/MCPA at Zadoks 22-23 decreased yield and test weight, but increased kernel weight”
Claim · model-written summary
Other weed control treatments had no effect on agronomic characteristics of naked oat.
- Taxon
- Avena sativaAvena sativae0
- Treatment
- other weed control treatmentse5
- Outcome
- agronomic characteristicse5
- Direction
- had no effecte5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Naked oat (Avena sativa L.)”
e5“The other weed control treatments had no effect on agronomic characteristics”
Claim · model-written summary
Few differences were found among the other weed control treatments in naked oat.
- Taxon
- Avena sativaAvena sativae0
- Outcome
- differencese6
- Qualifier
- Few differences were found among the other weed control treatmentse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Naked oat (Avena sativa L.)”
e6“Few differences were found among the other weed control treatments”
The same questions in other papers
(4-chloro-2-methylphenoxy)acetic acid · yield · Avena sativa (oats)Results differ
4 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 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.