Abstract
The present study was conducted on cut stems of standard chrysanthemum var. Thai Ching Queen to assess the effect of ethrel, STS, 6-BAP and TDZ on post harvest senescence of florets and yellowing of leaves. The stems were harvested when ¾th outer florets were fully expanded and treated with ethrel (50 and 100 µM), STS (0.1 and 0.2 mM), 6- BAP (50 and 100µM) and TDZ (5 and 10 µM) for 24 h. After the treatments, the stems were placed in distilled water. One set of stems were similarly treated with water represented control. The stems treated with ethrel exhibited early senescence of florets and yellowing of leaves which was associated with decrease in MSI, loss of chlorophyll and respiratory metabolites (total soluble and reducing sugars), accumulation of H2O2 content, increase in lipid peroxidation and loss in activity of antioxidant enzymes viz. peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT). BAP and TDZ treatments prolonged post harvest longevity of florets as well as leaves. This effect was associated with increased activities of antioxidant enzymes. BAP and TDZ treatments, also reduced the production of H2O2, minimized lipid peroxidation, maintained respirable substrates and improved water uptake of the stems. TDZ was found to be most effective for delaying floret senescence as well as yellowing of leaves in cut stems of chrysanthemum.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 12
Claim · model-written summary
Ethrel caused early floret senescence and leaf yellowing in cut chrysanthemum stems.
- Taxon
- Chrysanthemum
.jpeg?width=60)
Chrysanthemumt0 - Treatment
- ethrele0
- Outcome
- early senescence of florets and yellowing of leavese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“The stems treated with ethrel exhibited early senescence of florets and yellowing of leaves”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
Ethrel treated stems showed decreased MSI, chlorophyll and respiratory sugars.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- ethrele1
- Outcome
- MSI, loss of chlorophyll and respiratory metabolites (total soluble and reducing sugars)e0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decrease in MSI, loss of chlorophyll and respiratory metabolites (total soluble and reducing sugars)”
e1“stems treated with ethrel”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
Ethrel treated stems accumulated H2O2.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- ethrele1
- Outcome
- H2O2 contente0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulation of H2O2 content”
e1“stems treated with ethrel”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
Ethrel treated stems showed increased lipid peroxidation.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- ethrele1
- Outcome
- lipid peroxidatione0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in lipid peroxidation”
e1“stems treated with ethrel”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
Ethrel treated stems lost activity of POD, SOD and CAT antioxidant enzymes.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- ethrele1
- Outcome
- activity of antioxidant enzymes viz. peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT)e0
- Direction
- losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“loss in activity of antioxidant enzymes viz. peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT)”
e1“stems treated with ethrel”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
BAP prolonged postharvest longevity of florets and leaves.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- BAPe0
- Outcome
- post harvest longevity of florets as well as leavese0
- Direction
- prolongede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BAP and TDZ treatments prolonged post harvest longevity of florets as well as leaves”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
TDZ prolonged postharvest longevity of florets and leaves.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- TDZe0
- Outcome
- post harvest longevity of florets as well as leavese0
- Direction
- prolongede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BAP and TDZ treatments prolonged post harvest longevity of florets as well as leaves”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
BAP increased antioxidant enzyme activities.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- BAPe0
- Outcome
- activities of antioxidant enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BAP and TDZ treatments prolonged post harvest longevity of florets as well as leaves. This effect was associated with increased activities of antioxidant enzymes”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
TDZ increased antioxidant enzyme activities.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- TDZe0
- Outcome
- activities of antioxidant enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BAP and TDZ treatments prolonged post harvest longevity of florets as well as leaves. This effect was associated with increased activities of antioxidant enzymes”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
BAP reduced H2O2 production and lipid peroxidation, maintained respirable substrates, and improved stem water uptake.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- BAPe0
- Outcome
- production of H2O2, minimized lipid peroxidation, maintained respirable substrates and improved water uptake of the stemse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BAP and TDZ treatments, also reduced the production of H2O2, minimized lipid peroxidation, maintained respirable substrates and improved water uptake of the stems”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
TDZ reduced H2O2 production and lipid peroxidation, maintained respirable substrates, and improved stem water uptake.
- Taxon
- ChrysanthemumChrysanthemumt0
- Treatment
- TDZe0
- Outcome
- production of H2O2, minimized lipid peroxidation, maintained respirable substrates and improved water uptake of the stemse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BAP and TDZ treatments, also reduced the production of H2O2, minimized lipid peroxidation, maintained respirable substrates and improved water uptake of the stems”
t0“Chrysanthemum (Chrysanthemum morifolium Ramat)”
Claim · model-written summary
TDZ was the most effective treatment for delaying floret senescence and leaf yellowing.
- Taxon
- chrysanthemumChrysanthemume0
- Treatment
- TDZe0
- Outcome
- floret senescence as well as yellowing of leavese0
- Direction
- delayinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TDZ was found to be most effective for delaying floret senescence as well as yellowing of leaves in cut stems of chrysanthemum”
The same questions in other papers
(2-chloroethyl)phosphonic acid · physiology: pigments · ChrysanthemumPositive and negative results
1 in the opposite direction
- positive
N-benzyladenine · pest · ChrysanthemumPositive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 papers →Thidiazuron · physiology: water · ChrysanthemumResults agree
1 paper in the same direction as this paper
- positive
Thidiazuron · pest · ChrysanthemumResults agree
1 paper in the same direction as this paper
- positive
N-benzyladenine · physiology: antioxidant enzymes · ChrysanthemumResults agree
1 paper in the same direction as this paper
- positive
N-benzyladenine · physiology: water · ChrysanthemumResults agree
2 papers in the same direction as this paper
- positive
- positive
Thidiazuron · disease · ChrysanthemumResults agree
3 papers in the same direction as this paper
- positive
- positive
- 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.