Abstract
The direct toxic effect of atmospheric pollutant such as sulphur dioxide on plants has been well documented. It is essentially a potent phytotoxic gas and its toxicity to plant is manifested in typical chronic or acute foliar symptom injury. The mode and extent of damage caused by this pollutant to pomegranate has not been precisely and systematically studied. Under such circumstances, the present investigation was undertaken under simulating condition to find out the possible extent of adaptability of pomegranate in SO2 emission of our state. The effect of varying levels of sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3h under simulated conditions on pomegranate revealed that the important traits like leaf number, leaf area, fresh weight, dry weight and chlorophyll content in leaves were adversely affected by SO2 level. SO2 1.0ppm with 3h exposure found to be more harmful. However, no significant variation was seen amongst the treatments in respect of tissue fresh and dry weight when compared with that of control (ambient SO2). On the other hand, sulphur content in tissues increase progressively with increasing levels of SO2 and time of fumigation and the variation observed within treatments was significant to each other. It is suggested that the lowest concentration of SO2 (0.25 ppm) used in this study is more than sufficient to bring about a significant changes in most of the parameters studied. Tropical Agricultural Research and Extension 16(1): 2013: page 21-24
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Claims 6
Claim · model-written summary
Sulphur dioxide fumigation adversely affected leaf number, leaf area and fresh weight of pomegranate.
- Taxon
- pomegranate
Punica granatume0 - Treatment
- sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3he0
- Outcome
- leaf number, leaf area, fresh weighte1
- Direction
- decreaseinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of varying levels of sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3h under simulated conditions on pomegranate”
e1“leaf number, leaf area, fresh weight, dry weight and chlorophyll content in leaves were adversely affected by SO2 level”
Claim · model-written summary
Sulphur dioxide fumigation adversely affected dry weight and chlorophyll content in pomegranate leaves.
- Taxon
- pomegranatePunica granatume0
- Treatment
- sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3he0
- Outcome
- dry weight and chlorophyll content in leavese1
- Direction
- decreaseinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of varying levels of sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3h under simulated conditions on pomegranate”
e1“leaf number, leaf area, fresh weight, dry weight and chlorophyll content in leaves were adversely affected by SO2 level”
Claim · model-written summary
The SO2 level of 1.0 ppm with 3 h exposure was more harmful to pomegranate.
- Taxon
- pomegranatePunica granatume0
- Treatment
- SO2 1.0ppm with 3h exposuree2
- Outcome
- more harmfule2
- Direction
- more harmfule2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of varying levels of sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3h under simulated conditions on pomegranate”
e2“SO2 1.0ppm with 3h exposure found to be more harmful”
Claim · model-written summary
Tissue fresh and dry weight showed no significant variation between SO2 treatments and ambient SO2 control.
- Taxon
- pomegranatePunica granatume0
- Treatment
- sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3he0
- Outcome
- tissue fresh and dry weighte3
- Direction
- no_changeinferrede3
- Comparator
- control (ambient SO2)e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of varying levels of sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3h under simulated conditions on pomegranate”
e3“However, no significant variation was seen amongst the treatments in respect of tissue fresh and dry weight when compared with that of control (ambient SO2)”
Claim · model-written summary
Sulphur content in pomegranate tissues increased progressively with SO2 level and fumigation time.
- Taxon
- pomegranatePunica granatume0
- Treatment
- increasing levels of SO2 and time of fumigatione4
- Outcome
- sulphur content in tissuese4
- Direction
- increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of varying levels of sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3h under simulated conditions on pomegranate”
e4“sulphur content in tissues increase progressively with increasing levels of SO2 and time of fumigation”
Claim · model-written summary
The lowest SO2 concentration of 0.25 ppm is suggested to be sufficient to cause significant changes in most parameters.
- Taxon
- pomegranatePunica granatume0
- Treatment
- lowest concentration of SO2 (0.25 ppm)e5
- Outcome
- most of the parameters studiede5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of varying levels of sulphur dioxide (0.25, 0.5 and 1.0ppm) fumigated for 1, 2 and 3h under simulated conditions on pomegranate”
e5“It is suggested that the lowest concentration of SO2 (0.25 ppm) used in this study is more than sufficient to bring about a significant changes in most of the parameters studied”
The same questions in other papers
solarization · growth · Punica granatum (pomegranate)Positive and negative results
1 in the opposite direction
- positive
solarization · physiology: pigments · Punica granatum (pomegranate)Positive and negative results
1 in the opposite direction
- 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.