Abstract
Abstract Metribuzin [4‐amino‐6‐ tert ‐butyl‐3‐(methylthio)‐ as ‐triazin‐5(4H)one] controls several species of troublesome annual broadleaf weeds in soybeans [ Glycine max (L.) Merr.] but it sometimes causes excessive crop injury. To determine the extent to which this injury is caused by differential sensitivity of cultivars to metribuzin, we evaluated the response of approximately 250 soybean cultivars to soil‐incorporated metribuzin in field experiments in 1973 and 1974. Most cultivars were relatively tolerant of metribuzin at 0.56 kg/ha. At 0.84 and 1.7 kg/ha, many entries were severely injured or killed. Some of the most sensitive cultivars were ‘Altona,’ ‘Hurrelbrink,’ ‘Norman,’ ‘Portage,’ ‘Semmes,’ ‘Tracy,’ and ‘Vansoy.’ These cultivars, and possibly others with only moderate resistance to metribuzin, should probably be avoided when metribuzin is to be used for weed control.
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Claims 5
Claim · model-written summary
Most soybean cultivars tolerated metribuzin at 0.56 kg/ha.
- Taxon
- soybeans
Glycine maxt0 - Material
- Most cultivarse0
- Treatment
- metribuzin at 0.56 kg/hae0
- Outcome
- relatively tolerante0
- Direction
- relatively tolerante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most cultivars were relatively tolerant of metribuzin at 0.56 kg/ha.”
t0“soybeans [ Glycine max (L.) Merr.]”
Claim · model-written summary
Many cultivars were severely injured or killed at 0.84 kg/ha metribuzin.
- Taxon
- soybeansGlycine maxt0
- Material
- many entriese0
- Treatment
- 0.84e0
- Outcome
- severely injured or killede0
- Direction
- severely injured or killede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 0.84 and 1.7 kg/ha, many entries were severely injured or killed.”
t0“soybeans [ Glycine max (L.) Merr.]”
Claim · model-written summary
Many cultivars were severely injured or killed at 1.7 kg/ha metribuzin.
- Taxon
- soybeansGlycine maxt0
- Material
- many entriese0
- Treatment
- 1.7 kg/hae0
- Outcome
- severely injured or killede0
- Direction
- severely injured or killede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 0.84 and 1.7 kg/ha, many entries were severely injured or killed.”
t0“soybeans [ Glycine max (L.) Merr.]”
Claim · model-written summary
Altona, Hurrelbrink, Norman, Portage, Semmes, Tracy, and Vansoy were among the most metribuzin-sensitive cultivars.
- Taxon
- soybeansGlycine maxt0
- Material
- ‘Altona,’ ‘Hurrelbrink,’ ‘Norman,’ ‘Portage,’ ‘Semmes,’ ‘Tracy,’ and ‘Vansoy.’e0
- Outcome
- most sensitivee0
- Direction
- most sensitivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some of the most sensitive cultivars were ‘Altona,’ ‘Hurrelbrink,’ ‘Norman,’ ‘Portage,’ ‘Semmes,’ ‘Tracy,’ and ‘Vansoy.’”
t0“soybeans [ Glycine max (L.) Merr.]”
Claim · model-written summary
The authors advise avoiding metribuzin-sensitive cultivars when using the herbicide.
- Taxon
- soybeansGlycine maxt0
- Material
- These cultivarse0
- Outcome
- should probably be avoidede0
- Qualifier
- when metribuzin is to be used for weed controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These cultivars, and possibly others with only moderate resistance to metribuzin, should probably be avoided when metribuzin is to be used for weed control.”
t0“soybeans [ Glycine max (L.) Merr.]”
The same questions in other papers
metribuzin · disease · Glycine max (soybean)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.