Abstract
A study was conducted to evaluate the effect of different doses of nitrogen and phosphorus on the growth and development, flower spike characteristics and the vase life of gladiolus (Gladiolus grandiflorus L.) at the horticulture farm, IAAS, Rampur, Nepal, in 2014–15. One of the promising varieties, American Beauty, was used as the planting material in this experiment. Observations on the plant height, leaf number, length of spike and rachis, diameter of spike, number of florets on the spike and diameter of corm were taken to assess the effect of different combinations of nitrogen and phosphorus on gladiolus plants. The variable doses of nitrogen (75, 100 and 150 kg/ha) and phosphorus (50, 75 and 100 kg/ha) and their interaction produced a significant effect on the germination of corms and growth (height) of the plants. Nitrogen and phosphorus combination significantly affected the number of leaves during earlier stages of the plant growth. The combination of nitrogen and phosphorus did not cause significant increment on corm diameter. The higher doses of nitrogen produced a significant difference on the length of flower spikes, rachis length, spike diameter and floret width. However, the effect was found to be non-significant on number of florets on the spike. The variable doses of sucrose solution produced significant effect on the total vase life of the flower spike at room temperature. The combination 150 kg/ha nitrogen and 100 kg/ha phosphorous produced highest plant height (66.57 cm) at 75 days after planting, spike length (76.54 cm), rachis length (43.55 cm) and combination of 100 kg nitrogen/ha with 75 kg phosphorous/ha gave longest vase life (8.5 days) of cut spike (in 6% sucrose solution) as compared to the other treatments under study. Thus, the variable application of nitrogen and phosphorus significantly affects the growth, development and vase life of gladiolus. Keywords: Gladiolus, nitrogen, phosphorus, spike, vase life Cite this Article Krishna Dhakal, Dinesh Khanal, Dipendra Kumar Ayer et al . Effect of Nitrogen and Phosphorous on Growth, Development and Vase Life of Gladiolus. Research & Reviews: Journal of Agricultural Science and Technology . 2017; 6(3): 1–7p.
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Claims 11
Claim · model-written summary
Nitrogen and phosphorus doses and their interaction significantly affected corm germination and plant height.
- Treatment
- nitrogen (75, 100 and 150 kg/ha) and phosphorus (50, 75 and 100 kg/ha)e0
- Outcome
- germination of corms and growth (height)e0
GladiolusNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The variable doses of nitrogen (75, 100 and 150 kg/ha) and phosphorus (50, 75 and 100 kg/ha) and their interaction produced a significant effect on the germination of corms and growth (height) of the plants.”
t0“Gladiolus”
Claim · model-written summary
The nitrogen and phosphorus combination significantly affected leaf number early in growth.
- Treatment
- Nitrogen and phosphorus combinatione0
- Outcome
- number of leavese0
- Qualifier
- during earlier stages of the plant growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen and phosphorus combination significantly affected the number of leaves during earlier stages of the plant growth.”
t0“Gladiolus”
Claim · model-written summary
The nitrogen and phosphorus combination did not significantly increase corm diameter.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of nitrogen and phosphorus did not cause significant increment on corm diameter.”
t0“Gladiolus”
Claim · model-written summary
Higher nitrogen doses significantly affected flower spike length, rachis length and spike diameter.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher doses of nitrogen produced a significant difference on the length of flower spikes, rachis length, spike diameter and floret width.”
t0“Gladiolus”
Claim · model-written summary
Higher nitrogen doses significantly affected floret width.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher doses of nitrogen produced a significant difference on the length of flower spikes, rachis length, spike diameter and floret width.”
t0“Gladiolus”
Claim · model-written summary
The nitrogen effect on floret number per spike was not significant.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, the effect was found to be non-significant on number of florets on the spike.”
e1“The higher doses of nitrogen produced a significant difference”
t0“Gladiolus”
Claim · model-written summary
Sucrose solution doses significantly affected total flower spike vase life at room temperature.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The variable doses of sucrose solution produced significant effect on the total vase life of the flower spike at room temperature.”
t0“Gladiolus”
Claim · model-written summary
The 150 kg/ha nitrogen and 100 kg/ha phosphorus combination produced the highest height, 66.57 cm at 75 days after planting.
- Treatment
- 150 kg/ha nitrogen and 100 kg/ha phosphorouse0
- Outcome
- plant heighte0
- Direction
- higheste0
- Value
- 66.57 cme0
- Qualifier
- at 75 days after plantinge0
- Comparator
- other treatments under studye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination 150 kg/ha nitrogen and 100 kg/ha phosphorous produced highest plant height (66.57 cm) at 75 days after planting, spike length (76.54 cm), rachis length (43.55 cm)”
e1“as compared to the other treatments under study.”
t0“Gladiolus”
Claim · model-written summary
The 150 kg/ha nitrogen and 100 kg/ha phosphorus combination produced the highest spike length, 76.54 cm.
- Treatment
- 150 kg/ha nitrogen and 100 kg/ha phosphorouse0
- Outcome
- spike lengthe0
- Direction
- higheste0
- Value
- 76.54 cme0
- Comparator
- other treatments under studye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination 150 kg/ha nitrogen and 100 kg/ha phosphorous produced highest plant height (66.57 cm) at 75 days after planting, spike length (76.54 cm), rachis length (43.55 cm)”
e1“as compared to the other treatments under study.”
t0“Gladiolus”
Claim · model-written summary
The 150 kg/ha nitrogen and 100 kg/ha phosphorus combination produced the highest rachis length, 43.55 cm.
- Treatment
- 150 kg/ha nitrogen and 100 kg/ha phosphorouse0
- Outcome
- rachis lengthe0
- Direction
- higheste0
- Value
- 43.55 cme0
- Comparator
- other treatments under studye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination 150 kg/ha nitrogen and 100 kg/ha phosphorous produced highest plant height (66.57 cm) at 75 days after planting, spike length (76.54 cm), rachis length (43.55 cm)”
e1“as compared to the other treatments under study.”
t0“Gladiolus”
Claim · model-written summary
The 100 kg nitrogen/ha and 75 kg phosphorus/ha combination gave the longest cut spike vase life, 8.5 days in 6% sucrose.
- Treatment
- 100 kg nitrogen/ha with 75 kg phosphorous/hae0
- Outcome
- vase lifee0
- Direction
- longeste0
- Value
- 8.5 dayse0
- Qualifier
- in 6% sucrose solutione0
- Comparator
- other treatments under studye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combination of 100 kg nitrogen/ha with 75 kg phosphorous/ha gave longest vase life (8.5 days) of cut spike (in 6% sucrose solution) as compared to the other treatments under study.”
t0“Gladiolus”
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