Abstract
The effects of different agents on seed germination and growth characteristics of tobacco varieties with different drought tolerance were studied in this paper.Seeds of two tobacco varieties with different drought tolerance were primed in different concentration solutions of paclobutrazol,calcium chloride,proline and salicylic acid.Then,the germination,seedling growth and physiological changes under drought stress(simulating with 15% polyethylene glycol 6000) were measured.The results showed that the germination and seedling growth were inhibited,however,the activities of ascorbate peroxidase(APX),catalase(CAT),peroxidase(POD) and superoxide dismutase(SOD) in tobacco seedlings were enhanced and the malondialdehyde(MDA) concentration were decreased after treated with paclobutrazol(PP333).The germination parameters,root length,seedling length,seedling fresh and dry weight were improved,the activities of APX,CAT,POD and SOD were enhanced and the MDA concentration were decreased in two tobacco varieties after treated with calcium chloride,proline and salicylic acid.The treatment of 80 mg·L-1 salicylic acid had the best effects among all treatments,suggesting that this treatment can be used to improve drought tolerance of tobacco seeds and seedlings.
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 7
Claim · model-written summary
Paclobutrazol inhibited germination and seedling growth under drought.
- Taxon
- tobacco
Nicotiana tabacume2 - Treatment
- paclobutrazol(PP333)e1
- Outcome
- germination and seedling growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the germination and seedling growth were inhibited”
e1“after treated with paclobutrazol(PP333)”
e2“tobacco seedlings”
Claim · model-written summary
Paclobutrazol enhanced APX, CAT, POD and SOD activities in tobacco seedlings.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- paclobutrazol(PP333)e1
- Outcome
- activities of ascorbate peroxidase(APX),catalase(CAT),peroxidase(POD) and superoxide dismutase(SOD)e0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of ascorbate peroxidase(APX),catalase(CAT),peroxidase(POD) and superoxide dismutase(SOD) in tobacco seedlings were enhanced”
e1“after treated with paclobutrazol(PP333)”
Claim · model-written summary
Paclobutrazol decreased MDA concentration in tobacco seedlings.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- paclobutrazol(PP333)e0
- Outcome
- malondialdehyde(MDA) concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the malondialdehyde(MDA) concentration were decreased after treated with paclobutrazol(PP333)”
e1“tobacco seedlings”
Claim · model-written summary
Calcium chloride, proline and salicylic acid improved tobacco germination and seedling growth measures.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- calcium chloride,proline and salicylic acide1
- Outcome
- germination parameters,root length,seedling length,seedling fresh and dry weighte0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination parameters,root length,seedling length,seedling fresh and dry weight were improved”
e1“in two tobacco varieties after treated with calcium chloride,proline and salicylic acid”
Claim · model-written summary
Calcium chloride, proline and salicylic acid enhanced APX, CAT, POD and SOD activities in tobacco.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- calcium chloride,proline and salicylic acide1
- Outcome
- activities of APX,CAT,POD and SODe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of APX,CAT,POD and SOD were enhanced”
e1“in two tobacco varieties after treated with calcium chloride,proline and salicylic acid”
Claim · model-written summary
Calcium chloride, proline and salicylic acid decreased MDA concentration in tobacco.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- calcium chloride,proline and salicylic acide1
- Outcome
- MDA concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the MDA concentration were decreased”
e1“in two tobacco varieties after treated with calcium chloride,proline and salicylic acid”
Claim · model-written summary
Priming with 80 mg·L-1 salicylic acid had the best effects among treatments.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- 80 mg·L-1 salicylic acide0
- Outcome
- best effectse0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment of 80 mg·L-1 salicylic acid had the best effects among all treatments”
e1“tobacco seeds and seedlings”
The same questions in other papers
salicylic acid · physiology: antioxidant enzymes · Nicotiana tabacum (tobacco)Results differ
6 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
5 papers more in this group
See all 9 papers →salicylic acid · growth · Nicotiana tabacum (tobacco)Results differ
6 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
9 papers more in this group
See all 13 papers →paclobutrazol · growth · Nicotiana tabacum (tobacco)Positive and negative results
1 in the opposite direction
- positive
proline · physiology: oxidative · Nicotiana tabacum (tobacco)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
salicylic acid · physiology: oxidative · Nicotiana tabacum (tobacco)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
4 papers more in this group
See all 8 papers →calcium chloride dihydrate · physiology: oxidative · Nicotiana tabacum (tobacco)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
4 papers more in this group
See all 8 papers →proline · physiology: antioxidant enzymes · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- positive
proline · growth · Nicotiana tabacum (tobacco)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.