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
Pollution reduced the size of stomata in Cajanus and Sorghum.
Cajanus
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“plant growth of Cajanus and Sorghum”
e2“Pollution negatively impacts on stomata structure by reducing the size of the stomata”
Claim · model-written summary
Low Zn concentrations initially increased stomatal opening in Cajanus and Sorghum.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“plant growth of Cajanus and Sorghum”
e2“Low concentrations of Zn initially increased the stomatal opening”
Claim · model-written summary
Stomata were closed in Cajanus and Sorghum at high Zn concentrations.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“plant growth of Cajanus and Sorghum”
e3“a closed stomata was found with high Zn concentrations”
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
e4“Tolerance index of Cajanus and Sorghum plants studied increase up to post flowering stage”
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
e5“Sorghum registered greater tolerance index values than Cajanus”
Claim · model-written summary
The highest decrease in total plant length of Cajanus and Sorghum was at 100ppm Zn.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“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
e1“plant growth of Cajanus and Sorghum”
e7“Zn toxicity in plants results in reduced growth of both root and shoot”
Claim · model-written summary
Total plant length decreased with increasing Zn more in Cajanus than in Sorghum.
- Treatment
- increasing Zn concentratione2
- Outcome
- total plant lengthe2
- Direction
- decreasede2
- Comparator
- Sorghume2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“however end of the research total plant length was decreased with increasing Zn concentration in Cajanus than Sorghum”
Claim · model-written summary
Growth rate of Cajanus and Sorghum was slow in the pre flowering stage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“plant growth of Cajanus and Sorghum”
e2“The growth rate was exhibited slowly in pre flowering stage, followed by a rapid increase until post flowering stage”
Claim · model-written summary
Growth rate of Cajanus and Sorghum rose rapidly until the post flowering stage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“plant growth of Cajanus and Sorghum”
e2“The growth rate was exhibited slowly in pre flowering stage, followed by a rapid increase until post flowering stage”
Claim · model-written summary
Growth rate of Cajanus and Sorghum showed a sharp decline at the end of the harvest period.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“this growth rate showed a sharp decline in the end of the harvest period in all areas Cajanus and Sorghum plants studied”
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 Zne2
- Outcome
- Flowering stagee2
- Direction
- delaye2
- Value
- nearly one monthe2
- Comparator
- the controlse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“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 plants did not produce flowers at 100ppm Zn.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“plant growth of Cajanus and Sorghum”
e2“Some plants were not even produce flowers at 100ppm Zn”
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.