Abstract
The study is designed to investigate whether chlorophyll meter content readings (SPAD) can be used as to determine the tolerance in canola cultivars against arthropods. 10 canola cultivars were tested for chlorophyll limits (SPAD readings) in un-infested & infested plants at four to six leaves stage, flowering stage and pod stage at 15 days interval of aphid infestation. Feeding by mustard aphid L. erysimi K caused significant loss of chlorophyll in the infested plants of leaves un-infested plants have significantly higher chlorophyll than infested plant. The results showed that among various cultivars of canola differed significantly amongst the un-infested & infested plants of different canola cultivars there is significant difference in chlorophyll content. The results was multiplication of aphids/plant infestation (70.83) revealed that aphid density was significantly higher on Abaseen (367.75 aphid/plant) and lower on KS-75 (162.00 aphid/plant). In control, (un-infested plant) KS-75 was significantly higher (44.00 chlorophyll content/leaf) and Oscar lower (41.00 chlorophyll content/leaf). Among the artificially aphid infested plants, KS-75 (23.75 chlorophyll content/leaf) followed by Oscar (21.00 chlorophyll content/leaf) significantly higher while Abaseen (12.25) followed by Zahoor (12.75) lower. The chlorophyll content losses were significantly higher in Omega (30.75) followed by Shiralee (30.25) and lower in KS-75 (20.25) followed by (20.75) in Oscar. In term of infestation cause significantly low in KS-75 (46.02%) followed by Oscar (49.70%) while high in Omega (71.10%) followed by Abaseen (70.83%) respectively. The chlorophyll meter readings a positive correlation between and (%) infestation was over time strengthening and culminated at the physiological harvesting stage. It was a clear indication that the potential of the chlorophyll meter readings has to be used for the selection of susceptible/tolerant cultivars and may permit modern canola crop in the climate change scenarios to be grown at wider range of environments.
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Claims 19
Claim · model-written summary
Mustard aphid feeding significantly reduced chlorophyll in infested canola leaves relative to uninfested leaves.
- Taxon
- canola cultivars
.jpg?width=60)
Brassica napus var. napust0 - Treatment
- Feeding by mustard aphid L. erysimi Ke0
- Interactor
- mustard aphid L. erysimi Ke0pest
- Outcome
- chlorophylle0
- Direction
- losse0
- Comparator
- un-infested plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Feeding by mustard aphid L. erysimi K caused significant loss of chlorophyll in the infested plants of leaves un-infested plants have significantly higher chlorophyll than infested plant”
t0“canola cultivars”
Claim · model-written summary
Canola cultivars differed significantly in chlorophyll content under infestation states.
- Taxon
- canola cultivarsBrassica napus var. napust0
- Outcome
- chlorophyll contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there is significant difference in chlorophyll content”
t0“canola cultivars”
Claim · model-written summary
Aphid density was higher on Abaseen at 367.75 aphid/plant.
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Abaseene0
- Interactor
- aphide0pest
- Outcome
- aphid densitye0
- Direction
- highere0
- Value
- 367.75 aphid/plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“aphid density was significantly higher on Abaseen (367.75 aphid/plant)”
t0“canola cultivars”
Claim · model-written summary
Uninfested KS-75 had higher chlorophyll content, 44.00 chlorophyll content/leaf.
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- KS-75e0
- Outcome
- chlorophyll content/leafe0
- Direction
- highere0
- Value
- 44.00 chlorophyll content/leafe0
Not reportedQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KS-75 was significantly higher (44.00 chlorophyll content/leaf)”
t0“canola cultivars”
Claim · model-written summary
Uninfested Oscar had lower chlorophyll content, 41.00 chlorophyll content/leaf.
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Oscare0
- Outcome
- chlorophyll content/leafe0
- Direction
- lowere0
- Value
- 41.00 chlorophyll content/leafe0
Not reportedQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oscar lower (41.00 chlorophyll content/leaf)”
t0“canola cultivars”
Claim · model-written summary
In aphid-infested canola, KS-75 had higher chlorophyll content (23.75 chlorophyll content/leaf).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- KS-75e0
- Outcome
- chlorophyll content/leafe0
- Direction
- highere0
- Value
- 23.75 chlorophyll content/leafe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the artificially aphid infested plants, KS-75 (23.75 chlorophyll content/leaf) followed by Oscar (21.00 chlorophyll content/leaf) significantly higher while Abaseen (12.25) followed by Zahoor (12.75) lower”
t0“canola cultivars”
Claim · model-written summary
In aphid-infested canola, Oscar had higher chlorophyll content (21.00 chlorophyll content/leaf).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Oscare0
- Outcome
- chlorophyll content/leafe0
- Direction
- highere0
- Value
- 21.00 chlorophyll content/leafe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the artificially aphid infested plants, KS-75 (23.75 chlorophyll content/leaf) followed by Oscar (21.00 chlorophyll content/leaf) significantly higher while Abaseen (12.25) followed by Zahoor (12.75) lower”
t0“canola cultivars”
Claim · model-written summary
In aphid-infested canola, Abaseen had lower chlorophyll content (12.25).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Abaseene0
- Outcome
- chlorophyll content/leafe0
- Direction
- lowere0
- Value
- 12.25e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the artificially aphid infested plants, KS-75 (23.75 chlorophyll content/leaf) followed by Oscar (21.00 chlorophyll content/leaf) significantly higher while Abaseen (12.25) followed by Zahoor (12.75) lower”
t0“canola cultivars”
Claim · model-written summary
In aphid-infested canola, Zahoor had lower chlorophyll content (12.75).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Zahoore0
- Outcome
- chlorophyll content/leafe0
- Direction
- lowere0
- Value
- 12.75e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the artificially aphid infested plants, KS-75 (23.75 chlorophyll content/leaf) followed by Oscar (21.00 chlorophyll content/leaf) significantly higher while Abaseen (12.25) followed by Zahoor (12.75) lower”
t0“canola cultivars”
Claim · model-written summary
Chlorophyll loss was higher in Omega (30.75).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Omegae0
- Outcome
- chlorophyll content lossese0
- Direction
- highere0
- Value
- 30.75e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content losses were significantly higher in Omega (30.75) followed by Shiralee (30.25) and lower in KS-75 (20.25) followed by (20.75) in Oscar”
t0“canola cultivars”
Claim · model-written summary
Chlorophyll loss was higher in Shiralee (30.25).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Shiraleee0
- Outcome
- chlorophyll content lossese0
- Direction
- highere0
- Value
- 30.25e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content losses were significantly higher in Omega (30.75) followed by Shiralee (30.25) and lower in KS-75 (20.25) followed by (20.75) in Oscar”
t0“canola cultivars”
Claim · model-written summary
Chlorophyll loss was lower in KS-75 (20.25).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- KS-75e0
- Outcome
- chlorophyll content lossese0
- Direction
- lowere0
- Value
- 20.25e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content losses were significantly higher in Omega (30.75) followed by Shiralee (30.25) and lower in KS-75 (20.25) followed by (20.75) in Oscar”
t0“canola cultivars”
Claim · model-written summary
Chlorophyll loss was lower in Oscar (20.75).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Oscare0
- Outcome
- chlorophyll content lossese0
- Direction
- lowere0
- Value
- 20.75e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content losses were significantly higher in Omega (30.75) followed by Shiralee (30.25) and lower in KS-75 (20.25) followed by (20.75) in Oscar”
t0“canola cultivars”
Claim · model-written summary
Infestation was low in KS-75 (46.02%).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- KS-75e0
- Outcome
- infestatione0
- Direction
- lowe0
- Value
- 46.02%e0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In term of infestation cause significantly low in KS-75 (46.02%) followed by Oscar (49.70%) while high in Omega (71.10%) followed by Abaseen (70.83%) respectively”
t0“canola cultivars”
Claim · model-written summary
Infestation was low in Oscar (49.70%).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Oscare0
- Outcome
- infestatione0
- Direction
- lowe0
- Value
- 49.70%e0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In term of infestation cause significantly low in KS-75 (46.02%) followed by Oscar (49.70%) while high in Omega (71.10%) followed by Abaseen (70.83%) respectively”
t0“canola cultivars”
Claim · model-written summary
Infestation was high in Omega (71.10%).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Omegae0
- Outcome
- infestatione0
- Direction
- highe0
- Value
- 71.10%e0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In term of infestation cause significantly low in KS-75 (46.02%) followed by Oscar (49.70%) while high in Omega (71.10%) followed by Abaseen (70.83%) respectively”
t0“canola cultivars”
Claim · model-written summary
Infestation was high in Abaseen (70.83%).
- Taxon
- canola cultivarsBrassica napus var. napust0
- Material
- Abaseene0
- Outcome
- infestatione0
- Direction
- highe0
- Value
- 70.83%e0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In term of infestation cause significantly low in KS-75 (46.02%) followed by Oscar (49.70%) while high in Omega (71.10%) followed by Abaseen (70.83%) respectively”
t0“canola cultivars”
Claim · model-written summary
The correlation between chlorophyll meter readings and infestation percentage strengthened over time to physiological harvest.
- Taxon
- canola cultivarsBrassica napus var. napust0
- Organ / stage
- physiological harvesting stagee0
- Outcome
- chlorophyll meter readingse0
- Direction
- positivee0
- Comparator
- (%) infestatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll meter readings a positive correlation between and (%) infestation was over time strengthening and culminated at the physiological harvesting stage”
t0“canola cultivars”
Claim · model-written summary
The authors suggest chlorophyll meter readings for selecting susceptible or tolerant canola cultivars.
- Taxon
- canola cultivarsBrassica napus var. napust0
- Outcome
- selection of susceptible/tolerant cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the potential of the chlorophyll meter readings has to be used for the selection of susceptible/tolerant cultivars”
t0“canola cultivars”
The same questions in other papers
infection · physiology: pigments · Brassica napus (oilseed rape)Results agree
1 paper in the same direction as this paper
- negative
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.