Abstract
The present study was based on the general hypothesis that boron may affect the accumulation and utilization of other nutrients in plant. For this purpose a field experiment was carried out to find out the influence of boron on the different nutrients content in FCV tobacco (Nicotiana tabacum L.) at TRS Khan Garhi, Mardan, during 2010-2011. Two varieties TM-2008 and Speight G-28 were tested and six levels of boron (0, 0.5, 1, 2, 3 and 5 kg·ha-1) were applied in the form of boric acid, in randomized complete block design in split plot arrangement and replicated thrice. Results indicated that the yield of tobacco crop increased with 1 kg·B·ha-1 and then decreased sequence wise in both varieties. N and P concentrations were significantly affected by applied boron. Similarly, potassium was increased which is a good indication for a better quality of tobacco crop. Application of boron significantly increased the concentrations of boron nutrients ratios such as K/B; Cl/B and Mn/Fe were decreased while K/Cl and Zn/Cu ratios were increased at lower boron concentrations but decreased at higher concentrations of boron. The fertilizer use efficiency of both the cultivars showed similar trend; however, Speight G-28 was more efficient than TM-2008 in boron accumulation. The overall results revealed that the application of boron should be encouraged for balancing nutrients concentration, thus getting higher yield in the prevailing conditions.
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Claims 11
Claim · model-written summary
Tobacco yield increased at 1 kg·B·ha-1 in both varieties.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- 1 kg·B·ha-1e0
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results indicated that the yield of tobacco crop increased with 1 kg·B·ha-1 and then decreased sequence wise in both varieties.”
Claim · model-written summary
Tobacco yield subsequently decreased with increasing boron in both varieties.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- borone1
- Outcome
- yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results indicated that the yield of tobacco crop increased with 1 kg·B·ha-1 and then decreased sequence wise in both varieties.”
e1“N and P concentrations were significantly affected by applied boron.”
Claim · model-written summary
Applied boron significantly affected N and P concentrations.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- applied borone0
- Outcome
- N and P concentrationse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N and P concentrations were significantly affected by applied boron.”
t0“Tobacco”
Claim · model-written summary
Potassium increased following boron application.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- borone1
- Outcome
- potassiume0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similarly, potassium was increased which is a good indication for a better quality of tobacco crop.”
e1“N and P concentrations were significantly affected by applied boron.”
Claim · model-written summary
Boron application significantly increased boron concentrations.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- Application of borone0
- Outcome
- concentrations of borone0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of boron significantly increased the concentrations of boron nutrients ratios such as K/B; Cl/B and Mn/Fe were decreased”
t0“Tobacco”
Claim · model-written summary
K/B, Cl/B and Mn/Fe ratios decreased with boron application.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- Application of borone0
- Outcome
- K/B; Cl/B and Mn/Fee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of boron significantly increased the concentrations of boron nutrients ratios such as K/B; Cl/B and Mn/Fe were decreased”
t0“Tobacco”
Claim · model-written summary
K/Cl and Zn/Cu ratios increased at lower boron concentrations.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- lower boron concentrationse0
- Outcome
- K/Cl and Zn/Cu ratiose0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K/Cl and Zn/Cu ratios were increased at lower boron concentrations but decreased at higher concentrations of boron.”
t0“Tobacco”
Claim · model-written summary
K/Cl and Zn/Cu ratios decreased at higher boron concentrations.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- higher concentrations of borone0
- Outcome
- K/Cl and Zn/Cu ratiose0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K/Cl and Zn/Cu ratios were increased at lower boron concentrations but decreased at higher concentrations of boron.”
t0“Tobacco”
Claim · model-written summary
Both cultivars showed similar fertilizer use efficiency trends.
- Taxon
- TobaccoNicotiana tabacumt0
- Outcome
- fertilizer use efficiencye0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fertilizer use efficiency of both the cultivars showed similar trend”
t0“Tobacco”
Claim · model-written summary
Speight G-28 accumulated boron more efficiently than TM-2008.
- Taxon
- TobaccoNicotiana tabacumt0
- Material
- Speight G-28e0
- Outcome
- boron accumulatione0
- Direction
- more efficiente0
- Comparator
- TM-2008e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Speight G-28 was more efficient than TM-2008 in boron accumulation.”
t0“Tobacco”
Claim · model-written summary
Boron application should be encouraged to balance nutrients and obtain higher yield under prevailing conditions.
- Taxon
- TobaccoNicotiana tabacumt0
- Outcome
- application of borone0
- Qualifier
- prevailing conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The overall results revealed that the application of boron should be encouraged for balancing nutrients concentration, thus getting higher yield in the prevailing conditions.”
t0“Tobacco”
The same questions in other papers
boron atom · nutrient: content · Nicotiana tabacum (tobacco)Results differ
4 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
3 papers more in this group
See all 7 papers →boron atom · yield · Nicotiana tabacum (tobacco)Positive and negative results
7 in the opposite direction
- positive
- positive
- positive
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.