Abstract
This experiment was conducted to study the effect of photoperiod on growth characteristics in chrysanthemum cv. Zembla during 1st October 2014 to 20th December 2014 in naturally ventilated greenhouse at Centre for Protected Cultivation Technology (CPCT), IARI, New Delhi. Chrysanthemum cv. Zembla was exposed under different photoperiodic treatments of day length extension illuminating from high pressure sodium (HPS) for 6, 9, 12, 15 days @ 15 h/day in growth chamber. All the growth parameters (plant height, number of leaves, internode length and leaf area)varied significantly during different stages of growth and found that the increase in photoperiod by 15 days using high pressure sodium (HPS) lighting resulted in a significant increase in stem elongation and leaf number. Increased plant height (46.25 and 42.70 cm), internodal length (2.70 and 2.63 cm) and leaf number (32.75 and 29.75) were observed in cv. Zembla due to long day extension treatments as compared to the control. Flower bud appeared at the earliest (57 days) in the plants without any exposure to the photoperiod. However, flower opening delayed with increase in day length exposure from 6 days (66 days) to 15 days (68 days) treatments. The results also revealed that supplemental high pressure sodium lighting significantly increased in plant height, internodal length as well as leaves number with increase in day length (photoperiod).
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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
A 15-day photoperiod extension with HPS lighting significantly increased stem elongation and leaf number in chrysanthemum.
- Taxon
- Chrysanthemum
.jpeg?width=60)
Chrysanthemume0 - Treatment
- high pressure sodium (HPS) lightinge1
- Outcome
- stem elongation and leaf numbere1
- Direction
- significant increasee1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“Chrysanthemum cv. Zembla was exposed under different photoperiodic treatments”
e1“the increase in photoperiod by 15 days using high pressure sodium (HPS) lighting resulted in a significant increase in stem elongation and leaf number”
e2“Increased plant height (46.25 and 42.70 cm), internodal length (2.70 and 2.63 cm) and leaf number (32.75 and 29.75) were observed in cv. Zembla due to long day extension treatments as compared to the control”
Claim · model-written summary
Long day extension increased plant height of chrysanthemum cv. Zembla (46.25 and 42.70 cm) compared with the control.
- Taxon
- ChrysanthemumChrysanthemume0
- Treatment
- long day extension treatmentse2
- Outcome
- plant heighte2
- Direction
- Increasede2
- Value
- 46.25 and 42.70 cme2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chrysanthemum cv. Zembla was exposed under different photoperiodic treatments”
e2“Increased plant height (46.25 and 42.70 cm), internodal length (2.70 and 2.63 cm) and leaf number (32.75 and 29.75) were observed in cv. Zembla due to long day extension treatments as compared to the control”
Claim · model-written summary
Long day extension increased internodal length of chrysanthemum cv. Zembla (2.70 and 2.63 cm) compared with the control.
- Taxon
- ChrysanthemumChrysanthemume0
- Treatment
- long day extension treatmentse2
- Outcome
- internodal lengthe2
- Direction
- Increasede2
- Value
- 2.70 and 2.63 cme2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chrysanthemum cv. Zembla was exposed under different photoperiodic treatments”
e2“Increased plant height (46.25 and 42.70 cm), internodal length (2.70 and 2.63 cm) and leaf number (32.75 and 29.75) were observed in cv. Zembla due to long day extension treatments as compared to the control”
Claim · model-written summary
Long day extension increased leaf number of chrysanthemum cv. Zembla (32.75 and 29.75) compared with the control.
- Taxon
- ChrysanthemumChrysanthemume0
- Treatment
- long day extension treatmentse2
- Outcome
- leaf numbere2
- Direction
- Increasede2
- Value
- 32.75 and 29.75e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chrysanthemum cv. Zembla was exposed under different photoperiodic treatments”
e2“Increased plant height (46.25 and 42.70 cm), internodal length (2.70 and 2.63 cm) and leaf number (32.75 and 29.75) were observed in cv. Zembla due to long day extension treatments as compared to the control”
Claim · model-written summary
Flower bud appeared earliest (57 days) in chrysanthemum plants without photoperiod exposure.
- Taxon
- ChrysanthemumChrysanthemume0
- Outcome
- Flower bud appearede3
- Value
- 57 dayse3
- Qualifier
- in the plants without any exposure to the photoperiode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chrysanthemum cv. Zembla was exposed under different photoperiodic treatments”
e3“Flower bud appeared at the earliest (57 days) in the plants without any exposure to the photoperiod”
Claim · model-written summary
Increasing day length exposure from 6 to 15 days delayed flower opening of chrysanthemum (66 to 68 days).
- Taxon
- ChrysanthemumChrysanthemume0
- Treatment
- day length exposuree4
- Outcome
- flower openinge4
- Direction
- delayede4
- Value
- 68 dayse4
- Comparator
- 6 days (66 days)e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chrysanthemum cv. Zembla was exposed under different photoperiodic treatments”
e4“flower opening delayed with increase in day length exposure from 6 days (66 days) to 15 days (68 days) treatments”
Claim · model-written summary
Growth parameters of chrysanthemum varied significantly during different stages of growth.
- Taxon
- ChrysanthemumChrysanthemume0
- Organ / stage
- different stages of growthe5
- Outcome
- growth parameterse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chrysanthemum cv. Zembla was exposed under different photoperiodic treatments”
e5“All the growth parameters (plant height, number of leaves, internode length and leaf area)varied significantly during different stages of growth”
The same questions in other papers
sodium atom · growth · ChrysanthemumPositive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
1 paper more in this group
See all 5 papers →light · growth · ChrysanthemumPositive and negative results
46 papers in the same direction as this paper · 15 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
59 papers more in this group
See all 63 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.