Abstract
In this study we investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum. The anatomical changes of leaf was observed under Zn effect. Pollution negatively impacts on stomata structure by reducing the size of the stomata. Low concentrations of Zn initially increased the stomatal opening, followed by a closed stomata was found with high Zn concentrations. Tolerance index of Cajanus and Sorghum plants studied increase up to post flowering stage. Sorghum registered greater tolerance index values than Cajanus. The highest decrease in total plant length was noted at 100ppm Zn in both Cajanus and Sorghum. Zn toxicity in plants results in reduced growth of both root and shoot, however end of the research total plant length was decreased with increasing Zn concentration in Cajanus than Sorghum. The growth rate was exhibited slowly in pre flowering stage, followed by a rapid increase until post flowering stage, this growth rate showed a sharp decline in the end of the harvest period in all areas Cajanus and Sorghum plants studied. Flowering stage of Cajanus and Sorghum exhibited nearly one month delay in 50ppm and 100ppm Zn concentrations when compare to the controls. Some plants were not even produce flowers at 100ppm Zn.
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Claims 13
Claim · model-written summary
Low Zn concentrations initially increased stomatal opening in Cajanus and Sorghum.
- Treatment
- Low concentrations of Zne1
- Outcome
- stomatal openinge1
- Direction
- increasede1
- Qualifier
- initiallye1
Cajanus
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Low concentrations of Zn initially increased the stomatal opening”
e2“investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum”
Claim · model-written summary
High Zn concentrations resulted in closed stomata in Cajanus and Sorghum.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“followed by a closed stomata was found with high Zn concentrations”
e3“investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum”
Claim · model-written summary
Pollution reduced the size of stomata in Cajanus and Sorghum.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Pollution negatively impacts on stomata structure by reducing the size of the stomata”
e3“investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum”
Claim · model-written summary
Tolerance index of Cajanus and Sorghum increased up to the post flowering stage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Tolerance index of Cajanus and Sorghum plants studied increase up to post flowering stage”
e3“investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum”
Claim · model-written summary
Sorghum had greater tolerance index values than Cajanus.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Sorghum registered greater tolerance index values than Cajanus”
Claim · model-written summary
The largest decrease in total plant length occurred at 100ppm Zn in both Cajanus and Sorghum.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“The highest decrease in total plant length was noted at 100ppm Zn in both Cajanus and Sorghum”
Claim · model-written summary
Zn toxicity reduced growth of both root and shoot in Cajanus and Sorghum.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Zn toxicity in plants results in reduced growth of both root and shoot”
e3“investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum”
Claim · model-written summary
Total plant length decreased more with increasing Zn concentration in Cajanus than in Sorghum.
- Treatment
- increasing Zn concentratione0
- Outcome
- total plant lengthe0
- Direction
- decreasede0
- Comparator
- Sorghume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total plant length was decreased with increasing Zn concentration in Cajanus than Sorghum”
Claim · model-written summary
Growth rate of Cajanus and Sorghum increased rapidly from pre-flowering to post-flowering stage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The growth rate was exhibited slowly in pre flowering stage, followed by a rapid increase until post flowering stage”
e3“investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum”
Claim · model-written summary
Growth rate of Cajanus and Sorghum declined sharply at the end of the harvest period.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“this growth rate showed a sharp decline in the end of the harvest period”
e3“investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum”
Claim · model-written summary
Flowering of Cajanus and Sorghum was delayed by nearly one month at 50ppm and 100ppm Zn compared with controls.
- Treatment
- 50ppm and 100ppm Zne0
- Outcome
- Flowering stagee0
- Direction
- delaye0
- Value
- nearly one monthe0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flowering stage of Cajanus and Sorghum exhibited nearly one month delay in 50ppm and 100ppm Zn concentrations when compare to the controls”
Claim · model-written summary
Some Cajanus and Sorghum plants did not produce flowers at 100ppm Zn.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Some plants were not even produce flowers at 100ppm Zn”
e3“investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum”
Claim · model-written summary
Zn effect changed anatomical features of leaves of Cajanus and Sorghum.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The anatomical changes of leaf was observed under Zn effect”
e3“investigated the Zn effect on stomatal behavior and plant growth of Cajanus and Sorghum”
The same questions in other papers
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pollution · physiology: gas exchange · SorghumResults agree
2 papers in the same direction as this paper
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heavy metal · growth · CajanusResults agree
2 papers in the same direction as this paper
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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.