Abstract
The activity of potassium cyanide (KCN) alone or in combination with sodium azide (SA) on barley mutagenesis was studied in five different experiments. It was measured by frequencies of chlorophyll-deficient mutations per M1 spikes. The M1 plant sterility and lethality were also studied. In single treatments KCN showed no mutagenic activity, as well as a low level of injury in M1 plant sterility and lethality. On the other hand, SA treatments alone were highly effective for inducing both chlorophyll mutations and sterility, but at a low level of lethality. KCN in post- and simultaneous treatments combined with SA treatment has produced a marked reduction of the frequencies of SA-induced chlorophyll-deficient mutations and sterility. The decrease was much less when KCN was pretreatment. None of the combined treatments produced high levels of M1 plant lethality.
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Claims 9
Claim · model-written summary
KCN alone showed no mutagenic activity in barley.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- KCNe0
- Outcome
- mutagenic activitye0
- Direction
- noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“In single treatments KCN showed no mutagenic activity”
t0“barley”
Claim · model-written summary
KCN alone caused a low level of M1 plant sterility.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- KCNe0
- Outcome
- M1 plant sterilitye0
- Direction
- low levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KCN showed no mutagenic activity, as well as a low level of injury in M1 plant sterility and lethality”
t0“barley”
Claim · model-written summary
KCN alone caused a low level of M1 plant lethality.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- KCNe0
- Outcome
- lethalitye0
- Direction
- low levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KCN showed no mutagenic activity, as well as a low level of injury in M1 plant sterility and lethality”
t0“barley”
Claim · model-written summary
SA alone strongly induced chlorophyll mutations and sterility.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- SA treatments alonee0
- Outcome
- chlorophyll mutations and sterilitye0
- Direction
- highly effectivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA treatments alone were highly effective for inducing both chlorophyll mutations and sterility”
t0“barley”
Claim · model-written summary
SA alone caused low lethality.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- lethalitye0
- Direction
- low levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but at a low level of lethality”
t0“barley”
Claim · model-written summary
Post- and simultaneous KCN with SA markedly reduced SA-induced chlorophyll-deficient mutations.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- KCN in post- and simultaneous treatments combined with SA treatmente0
- Outcome
- frequencies of SA-induced chlorophyll-deficient mutationse0
- Direction
- reductione0
- Comparator
- SA treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KCN in post- and simultaneous treatments combined with SA treatment has produced a marked reduction of the frequencies of SA-induced chlorophyll-deficient mutations and sterility”
t0“barley”
Claim · model-written summary
Post- and simultaneous KCN with SA markedly reduced sterility.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- KCN in post- and simultaneous treatments combined with SA treatmente0
- Outcome
- sterilitye0
- Direction
- reductione0
- Comparator
- SA treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KCN in post- and simultaneous treatments combined with SA treatment has produced a marked reduction of the frequencies of SA-induced chlorophyll-deficient mutations and sterility”
t0“barley”
Claim · model-written summary
KCN pretreatment produced a smaller decrease.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- KCNe0
- Outcome
- decreasee0
- Direction
- much lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease was much less when KCN was pretreatment.”
t0“barley”
Claim · model-written summary
None of the combined treatments produced high M1 plant lethality.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- combined treatmentse0
- Outcome
- M1 plant lethalitye0
- Direction
- Nonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the combined treatments produced high levels of M1 plant lethality.”
t0“barley”