Abstract
Compared with own-rooted watermelon, the influence of different rootstocks on chilling tolerance of grafted watermelon seedlings and its physiological mechanisms were studied. The results showed that grafting increased the chilling tolerance. Compared with own-rooted watermelon seedlings, the grafted watermelon seedlings had lower chilling injury index, lower electrolytic leakage (%), lower MDA content, higher chlorophyll, proline content and higher activities of superoxide dismutase, ascorbate peroxidase and dehydroascorbate reductase in leaves under low temperature stress. There was a considerable difference of chilling tolerance among different grafted watermelon seedlings due to the difference of rootstock chilling tolerance. The grafted seedlings with stronger chilling tolerance had lower electrolytic leakage (%), lower MDA content, higher proline content and higher activities of superoxide dismutase, ascorbate peroxidase, dehydroascorbate reductase in leaves than those of grafted seedlings with weaker chilling tolerance. Therefore, chilling tolerance may be related to higher antioxidative ability and membrane stability in the plants. The chilling tolerance of grafted seedlings could be properly evaluated by comprehensive physiological indexes but not a single physiological index.
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Claims 9
Claim · model-written summary
Grafting increased the chilling tolerance of watermelon seedlings relative to own-rooted seedlings.
- Taxon
- watermelon
Citrullus lanatust0 - Treatment
- graftinge1
- Outcome
- chilling tolerancee1
- Direction
- increasede1
- Comparator
- own-rooted watermelon seedlingse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grafted Watermelon Seedlings”
e1“The results showed that grafting increased the chilling tolerance”
e2“Compared with own-rooted watermelon seedlings, the grafted watermelon seedlings had lower chilling injury index, lower electrolytic leakage (%), lower MDA content, higher chlorophyll, proline content and higher activities of superoxide dismutase, ascorbate peroxidase and dehydroascorbate reductase in leaves under low temperature stress”
Claim · model-written summary
Grafted watermelon seedlings had lower chilling injury index, electrolytic leakage and MDA content than own-rooted seedlings under low temperature.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- grafted watermelon seedlingse2
- Outcome
- lower chilling injury index, lower electrolytic leakage (%), lower MDA contente2
- Direction
- lowere2
- Comparator
- own-rooted watermelon seedlingse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grafted Watermelon Seedlings”
e2“Compared with own-rooted watermelon seedlings, the grafted watermelon seedlings had lower chilling injury index, lower electrolytic leakage (%), lower MDA content, higher chlorophyll, proline content and higher activities of superoxide dismutase, ascorbate peroxidase and dehydroascorbate reductase in leaves under low temperature stress”
Claim · model-written summary
Grafted watermelon seedlings had higher chlorophyll and proline content than own-rooted seedlings under low temperature.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- grafted watermelon seedlingse2
- Outcome
- higher chlorophyll, proline contente2
- Direction
- highere2
- Comparator
- own-rooted watermelon seedlingse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grafted Watermelon Seedlings”
e2“Compared with own-rooted watermelon seedlings, the grafted watermelon seedlings had lower chilling injury index, lower electrolytic leakage (%), lower MDA content, higher chlorophyll, proline content and higher activities of superoxide dismutase, ascorbate peroxidase and dehydroascorbate reductase in leaves under low temperature stress”
Claim · model-written summary
Grafted watermelon seedlings had higher leaf activities of superoxide dismutase, ascorbate peroxidase and dehydroascorbate reductase than own-rooted seedlings under low temperature.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- grafted watermelon seedlingse2
- Outcome
- higher activities of superoxide dismutase, ascorbate peroxidase and dehydroascorbate reductase in leavese2
- Direction
- highere2
- Comparator
- own-rooted watermelon seedlingse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grafted Watermelon Seedlings”
e2“Compared with own-rooted watermelon seedlings, the grafted watermelon seedlings had lower chilling injury index, lower electrolytic leakage (%), lower MDA content, higher chlorophyll, proline content and higher activities of superoxide dismutase, ascorbate peroxidase and dehydroascorbate reductase in leaves under low temperature stress”
Claim · model-written summary
Grafted seedlings with stronger chilling tolerance had lower electrolytic leakage and MDA content than those with weaker chilling tolerance.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- grafted seedlings with stronger chilling tolerancee3
- Outcome
- lower electrolytic leakage (%), lower MDA contente3
- Direction
- lowere3
- Comparator
- grafted seedlings with weaker chilling tolerancee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grafted Watermelon Seedlings”
e3“The grafted seedlings with stronger chilling tolerance had lower electrolytic leakage (%), lower MDA content, higher proline content and higher activities of superoxide dismutase, ascorbate peroxidase, dehydroascorbate reductase in leaves than those of grafted seedlings with weaker chilling tolerance”
Claim · model-written summary
Grafted seedlings with stronger chilling tolerance had higher proline content than those with weaker chilling tolerance.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- grafted seedlings with stronger chilling tolerancee3
- Outcome
- higher proline contente3
- Direction
- highere3
- Comparator
- grafted seedlings with weaker chilling tolerancee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grafted Watermelon Seedlings”
e3“The grafted seedlings with stronger chilling tolerance had lower electrolytic leakage (%), lower MDA content, higher proline content and higher activities of superoxide dismutase, ascorbate peroxidase, dehydroascorbate reductase in leaves than those of grafted seedlings with weaker chilling tolerance”
Claim · model-written summary
Grafted seedlings with stronger chilling tolerance had higher activities of superoxide dismutase, ascorbate peroxidase and dehydroascorbate reductase than those with weaker chilling tolerance.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- grafted seedlings with stronger chilling tolerancee3
- Outcome
- higher activities of superoxide dismutase, ascorbate peroxidase, dehydroascorbate reductase in leavese3
- Direction
- highere3
- Comparator
- grafted seedlings with weaker chilling tolerancee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grafted Watermelon Seedlings”
e3“The grafted seedlings with stronger chilling tolerance had lower electrolytic leakage (%), lower MDA content, higher proline content and higher activities of superoxide dismutase, ascorbate peroxidase, dehydroascorbate reductase in leaves than those of grafted seedlings with weaker chilling tolerance”
Claim · model-written summary
Chilling tolerance of watermelon may be related to higher antioxidative ability and membrane stability.
- Taxon
- watermelonCitrullus lanatust0
- Outcome
- chilling tolerancee4
- Qualifier
- higher antioxidative ability and membrane stabilitye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grafted Watermelon Seedlings”
e4“chilling tolerance may be related to higher antioxidative ability and membrane stability in the plants”
Claim · model-written summary
Chilling tolerance of grafted watermelon seedlings is better evaluated by comprehensive physiological indexes than by a single index.
- Taxon
- watermelonCitrullus lanatust0
- Outcome
- comprehensive physiological indexese5
- Qualifier
- but not a single physiological indexe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grafted Watermelon Seedlings”
e5“The chilling tolerance of grafted seedlings could be properly evaluated by comprehensive physiological indexes but not a single physiological index”
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See all 13 papers →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.