Abstract
Growth retardants have been proven to prevent excessive stem elongation and reduce internode length in plants by inhibiting the effect of cell division and enlargement of cell in plants. This study was aimed to evaluate the effect of concentrations of daminozide and maleic hydrazide on growth, physiology and flowering of chrysanthemum cultivar Punch under protected condition. The treatments composed of two growth retardants: daminozide at four different concentrations (1000, 1500, 2000 and 2500 ppm) with three frequencies (7, 14 and 21 days after darkening) and maleic hydrazide at three different concentrations (500, 750 and 1000 ppm) with two frequencies (7 and 21 days after darkening) along with control (no spray given). Hence based on the results obtained, it can be concluded that single application of daminozide at 2500 ppm at seven days after darkening reduced the plant height at considerable height (34.33, 83.33 and 103.58 cm) at critical stages and improved total leaf area (1694.55 and 1745.27 cm2) at bud appearance and peak flowering stage and showed earliness in flowering and days to harvest (44.72 and 81.33 day), increased pedicel length (5.87 cm), cut stem girth (3.24 cm), stem fresh weight (68.00 g/stem) and chlorophyll (1.93, 2.53 and 2.80 mg/g) and soluble protein content (65.66, 72.33 and 80.66 mg/g) at critical stages. Increased cut stem yield (77.34 stems/m2) and improved vase life (12.50 day) were also recorded. This may be recommended to improve growth and flower quality of ‘Punch’ chrysanthemum under greenhouse conditions. Key words: Chrysanthemum, daminozide, maleic hydrazide, growth, flowering.
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Claims 11
Claim · model-written summary
A single application of daminozide at 2500 ppm seven days after darkening reduced chrysanthemum plant height (34.33, 83.33 and 103.58 cm at critical stages) relative to the unsprayed control.
- Taxon
- chrysanthemum
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Chrysanthemumt0 - Material
- Puncht0
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- plant heighte3
- Direction
- reducede3
- Value
- 34.33, 83.33 and 103.58 cme3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“reduced the plant height at considerable height (34.33, 83.33 and 103.58 cm)”
Claim · model-written summary
Daminozide at 2500 ppm seven days after darkening improved chrysanthemum total leaf area (1694.55 and 1745.27 cm2) at bud appearance and peak flowering stage relative to the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Material
- Puncht0
- Organ / stage
- bud appearance and peak flowering stagee3
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- total leaf areae3
- Direction
- improvede3
- Value
- 1694.55 and 1745.27 cm2e3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“improved total leaf area (1694.55 and 1745.27 cm2) at bud appearance and peak flowering stage”
Claim · model-written summary
Daminozide at 2500 ppm seven days after darkening gave earlier flowering and shorter days to harvest (44.72 and 81.33 days) in chrysanthemum relative to the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Material
- Puncht0
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- earliness in flowering and days to harveste3
- Direction
- earlinesse3
- Value
- 44.72 and 81.33 daye3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“showed earliness in flowering and days to harvest (44.72 and 81.33 day)”
Claim · model-written summary
Daminozide at 2500 ppm seven days after darkening increased chrysanthemum pedicel length (5.87 cm) relative to the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Material
- Puncht0
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- pedicel lengthe3
- Direction
- increasede3
- Value
- 5.87 cme3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“increased pedicel length (5.87 cm)”
Claim · model-written summary
Daminozide at 2500 ppm seven days after darkening increased chrysanthemum cut stem girth (3.24 cm) relative to the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Material
- Puncht0
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- cut stem girthe3
- Direction
- increasede3
- Value
- 3.24 cme3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“increased pedicel length (5.87 cm), cut stem girth (3.24 cm)”
Claim · model-written summary
Daminozide at 2500 ppm seven days after darkening increased chrysanthemum stem fresh weight (68.00 g/stem) relative to the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Material
- Puncht0
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- stem fresh weighte3
- Direction
- increasede3
- Value
- 68.00 g/steme3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“increased pedicel length (5.87 cm), cut stem girth (3.24 cm), stem fresh weight (68.00 g/stem)”
Claim · model-written summary
Daminozide at 2500 ppm seven days after darkening increased chrysanthemum chlorophyll (1.93, 2.53 and 2.80 mg/g at critical stages) relative to the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Material
- Puncht0
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- chlorophylle3
- Direction
- increasede3
- Value
- 1.93, 2.53 and 2.80 mg/ge3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“increased pedicel length (5.87 cm), cut stem girth (3.24 cm), stem fresh weight (68.00 g/stem) and chlorophyll (1.93, 2.53 and 2.80 mg/g)”
Claim · model-written summary
Daminozide at 2500 ppm seven days after darkening increased chrysanthemum soluble protein content (65.66, 72.33 and 80.66 mg/g at critical stages) relative to the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Material
- Puncht0
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- soluble protein contente3
- Direction
- increasede3
- Value
- 65.66, 72.33 and 80.66 mg/ge3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“increased pedicel length (5.87 cm), cut stem girth (3.24 cm), stem fresh weight (68.00 g/stem) and chlorophyll (1.93, 2.53 and 2.80 mg/g) and soluble protein content (65.66, 72.33 and 80.66 mg/g)”
Claim · model-written summary
Daminozide at 2500 ppm seven days after darkening increased chrysanthemum cut stem yield (77.34 stems/m2) relative to the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Material
- Puncht0
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- cut stem yielde3
- Direction
- Increasede3
- Value
- 77.34 stems/m2e3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“Increased cut stem yield (77.34 stems/m2)”
Claim · model-written summary
Daminozide at 2500 ppm seven days after darkening improved chrysanthemum vase life (12.50 days) relative to the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Material
- Puncht0
- Treatment
- daminozide at 2500 ppm at seven days after darkeninge1
- Outcome
- vase lifee3
- Direction
- improvede3
- Value
- 12.50 daye3
- Comparator
- control (no spray given)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chrysanthemum var. Punch”
e1“daminozide at 2500 ppm at seven days after darkening”
e2“control (no spray given)”
e3“improved vase life (12.50 day)”
Claim · model-written summary
The authors recommend this treatment to improve growth and flower quality of chrysanthemum Punch under greenhouse conditions.
- Taxon
- chrysanthemumChrysanthemume0
- Outcome
- growth and flower qualitye0
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This may be recommended to improve growth and flower quality of ‘Punch’ chrysanthemum under greenhouse conditions”
The same questions in other papers
Daminozide · quality: postharvest · ChrysanthemumPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
Daminozide · growth · ChrysanthemumPositive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
4 papers more in this group
See all 8 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.