Abstract
The paclobutrazol is one of plant growth regulators from triazoles group that is able to protect plants against environmental stress conditions. This experiment was carried out to investigate paclobutrazol (0, 25 and 50 mg/L) effects on reduction of injuries caused by low temperature (5±1ÂoC) stress in two cultivars of Phaseolus vulgaris [Daneshkadeh cv. (white bean) and Sayyad cv. (red bean)]. The results showed that low temperature stress, reduced fresh weight and dry matter and also reduced length of shoots and roots and leaf chlorophyll contents but increased electrolyte leakage percentage. Paclobutrazol treatment reduced fresh weight and dry matter and length of shoots but increased root dry weight and root development. Moreover, paclobutrazol-treated plants, when exposed to the cold stress condition, showed electrolyte leakage percentage less than control plants. Treatment of seedlings with paclobutrazol led to an increase in chlorophyll contents, either in stress or non stress conditions. White bean was more sensitive to cold than red bean and paclobutrazol affected white bean more than red bean. Therefore, it could be concluded that paclobutrazol treatment improved ability of plant responses to the cold stress and this effect was more remarkable in cold sensitive cultivars.
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Claims 11
Claim · model-written summary
Low temperature stress reduced fresh weight and dry matter of bean plantlets.
- Taxon
- Phaseolus vulgaris
Phaseolus vulgarist0 - Treatment
- low temperature stresse1
- Outcome
- fresh weight and dry mattere1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e1“low temperature stress, reduced fresh weight and dry matter and also reduced length of shoots and roots and leaf chlorophyll contents but increased electrolyte leakage percentage”
Claim · model-written summary
Low temperature stress reduced the length of shoots and roots of bean plantlets.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- low temperature stresse1
- Outcome
- length of shoots and rootse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e1“low temperature stress, reduced fresh weight and dry matter and also reduced length of shoots and roots and leaf chlorophyll contents but increased electrolyte leakage percentage”
Claim · model-written summary
Low temperature stress reduced leaf chlorophyll contents of bean plantlets.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- low temperature stresse1
- Outcome
- leaf chlorophyll contentse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e1“low temperature stress, reduced fresh weight and dry matter and also reduced length of shoots and roots and leaf chlorophyll contents but increased electrolyte leakage percentage”
Claim · model-written summary
Low temperature stress increased electrolyte leakage percentage of bean plantlets.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- low temperature stresse1
- Outcome
- electrolyte leakage percentagee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e1“low temperature stress, reduced fresh weight and dry matter and also reduced length of shoots and roots and leaf chlorophyll contents but increased electrolyte leakage percentage”
Claim · model-written summary
Paclobutrazol reduced fresh weight, dry matter and shoot length of bean plantlets.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- Paclobutrazole2
- Outcome
- fresh weight and dry matter and length of shootse2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e2“Paclobutrazol treatment reduced fresh weight and dry matter and length of shoots but increased root dry weight and root development”
Claim · model-written summary
Paclobutrazol increased root dry weight and root development of bean plantlets.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- Paclobutrazole2
- Outcome
- root dry weight and root developmente2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e2“Paclobutrazol treatment reduced fresh weight and dry matter and length of shoots but increased root dry weight and root development”
Claim · model-written summary
Paclobutrazol-treated plants under cold stress showed lower electrolyte leakage percentage than control plants.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- paclobutrazole3
- Outcome
- electrolyte leakage percentagee3
- Direction
- lesse3
- Comparator
- control plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e3“Moreover, paclobutrazol-treated plants, when exposed to the cold stress condition, showed electrolyte leakage percentage less than control plants”
Claim · model-written summary
Paclobutrazol increased chlorophyll contents of bean seedlings in stress and non-stress conditions.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- paclobutrazole4
- Outcome
- chlorophyll contentse4
- Direction
- increasee4
- Qualifier
- either in stress or non stress conditionse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e4“Treatment of seedlings with paclobutrazol led to an increase in chlorophyll contents, either in stress or non stress conditions”
Claim · model-written summary
White bean was more sensitive to cold than red bean.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Material
- White beane5
- Outcome
- sensitive to colde5
- Direction
- moree5
- Comparator
- red beane5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e5“White bean was more sensitive to cold than red bean”
Claim · model-written summary
Paclobutrazol affected white bean more than red bean.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Material
- white beane6
- Treatment
- paclobutrazole6
- Outcome
- affected white beane6
- Direction
- moree6
- Comparator
- red beane6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e6“paclobutrazol affected white bean more than red bean”
Claim · model-written summary
Paclobutrazol improved the ability of bean plant responses to cold stress, more remarkably in cold-sensitive cultivars.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- paclobutrazole7
- Outcome
- ability of plant responses to the cold stresse7
- Direction
- improvede7
- Qualifier
- more remarkable in cold sensitive cultivarse7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris”
e7“paclobutrazol treatment improved ability of plant responses to the cold stress and this effect was more remarkable in cold sensitive cultivars”
The same questions in other papers
paclobutrazol · growth · Phaseolus vulgaris (common bean)Results differ
6 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
6 papers more in this group
See all 10 papers →paclobutrazol · physiology: pigments · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- positive
cold · physiology: pigments · Phaseolus vulgaris (common bean)Positive and negative results
1 in the opposite direction
- positive
cold · physiology: oxidative · Phaseolus vulgaris (common bean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
cold · growth · Phaseolus vulgaris (common bean)Results agree
9 papers in the same direction as this paper
- negative
- no effect
- negative
6 papers more in this group
See all 10 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.