Abstract
Abstract Container-grown plants of carrot ( Daucus carota L.) exposed intermittently to 0.19 or 0.25 ppm ozone throughout their growth increased in plant height and total number of leaves in spite of the development of chlorotic leaves. Leaf dry weight was unaffected by ozone, but root dry matter decreased 32 to 46%. As a result, the root weight/total dry weight ratio and root/shoot ratio declined significantly in the presence of ozone. A regression of root dry weight on chlorotic leaf dry weight explained 35% of the root loss and predicted that 1.5 g of root tissue is lost for every g of chlorotic leaf dry weight caused by ozone injury.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Intermittent ozone exposure increased plant height and total leaf number of carrot despite chlorotic leaves.
- Taxon
- carrot
Daucus carotae0 - Treatment
- exposed intermittently to 0.19 or 0.25 ppm ozone throughout their growthe0
- Outcome
- plant height and total number of leavese0
- Direction
- increasede0
- Qualifier
- in spite of the development of chlorotic leavese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Container-grown plants of carrot ( Daucus carota L.) exposed intermittently to 0.19 or 0.25 ppm ozone throughout their growth increased in plant height and total number of leaves in spite of the development of chlorotic leaves”
Claim · model-written summary
Ozone left carrot leaf dry weight unaffected.
- Taxon
- carrotDaucus carotae0
- Treatment
- ozonee1
- Outcome
- Leaf dry weighte1
- Direction
- unaffectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Container-grown plants of carrot ( Daucus carota L.) exposed intermittently to 0.19 or 0.25 ppm ozone throughout their growth increased in plant height and total number of leaves in spite of the development of chlorotic leaves”
e1“Leaf dry weight was unaffected by ozone”
Claim · model-written summary
Ozone decreased carrot root dry matter by 32 to 46%.
- Taxon
- carrotDaucus carotae0
- Treatment
- ozonee1
- Outcome
- root dry mattere2
- Direction
- decreasede2
- Value
- 32 to 46%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Container-grown plants of carrot ( Daucus carota L.) exposed intermittently to 0.19 or 0.25 ppm ozone throughout their growth increased in plant height and total number of leaves in spite of the development of chlorotic leaves”
e1“Leaf dry weight was unaffected by ozone”
e2“root dry matter decreased 32 to 46%”
Claim · model-written summary
Ozone significantly declined the root weight/total dry weight ratio and root/shoot ratio of carrot.
- Taxon
- carrotDaucus carotae0
- Treatment
- ozonee3
- Outcome
- root weight/total dry weight ratio and root/shoot ratioe3
- Direction
- declinede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Container-grown plants of carrot ( Daucus carota L.) exposed intermittently to 0.19 or 0.25 ppm ozone throughout their growth increased in plant height and total number of leaves in spite of the development of chlorotic leaves”
e3“the root weight/total dry weight ratio and root/shoot ratio declined significantly in the presence of ozone”
Claim · model-written summary
Root dry weight on chlorotic leaf dry weight regression explained 35% of carrot root loss.
- Taxon
- carrotDaucus carotae0
- Treatment
- chlorotic leaf dry weighte4
- Outcome
- root losse4
- Value
- 35%e4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Container-grown plants of carrot ( Daucus carota L.) exposed intermittently to 0.19 or 0.25 ppm ozone throughout their growth increased in plant height and total number of leaves in spite of the development of chlorotic leaves”
e4“A regression of root dry weight on chlorotic leaf dry weight explained 35% of the root loss”
Claim · model-written summary
Regression predicted that 1.5 g of carrot root tissue is lost for every g of chlorotic leaf dry weight caused by ozone injury.
- Taxon
- carrotDaucus carotae0
- Treatment
- chlorotic leaf dry weighte5
- Outcome
- root tissue is loste5
- Direction
- decreaseinferrede5
- Value
- 1.5 ge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Container-grown plants of carrot ( Daucus carota L.) exposed intermittently to 0.19 or 0.25 ppm ozone throughout their growth increased in plant height and total number of leaves in spite of the development of chlorotic leaves”
e5“predicted that 1.5 g of root tissue is lost for every g of chlorotic leaf dry weight caused by ozone injury”