Abstract
Application of nanoscale materials in agriculture for various reasons, including plant nutrition, has been an interesting multidisciplinary research component. Among the plant nutrients, silica plays an important role as a quasi-essential nutrient besides enhancing resistance against disease and pests in the plant system. In the present investigation, we report the effects of foliar spray (field experiment) of varied concentrations (250, 500, and 750 ppm) of nanoscale silica (NSiO2) and osic acid (350, 700, and 1050 ppm) on structural and biochemical processes and yield in chilli (Capsicum annuum L.). NSiO2 was prepared using the sol–gel method and characterized by UV–vis spectroscopy, dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). The DLS analysis revealed the size (26.2 nm) and ζ-potential (−43.6 mV) of NSiO2. Significant increases in plant height, chlorophyll content, carotenoids, lycopene, and superoxide dismutase enzymatic activities were recorded with particulate NSiO2 foliar application at 750 ppm. Further, we are the first to report that foliar application of particulate NSiO2 led to the formation of a silicic acid layer on epidermal cells in chilli. Hence, foliar application of particulate nanoscale silica increases the flexural rigidity of epidermal cells, the chlorophyll content, carotenoids, lycopene content, and yield in chilli.
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Claims 8
Claim · model-written summary
Foliar NSiO2 at 750 ppm significantly increased plant height of chilli in a field experiment.
- Taxon
- Chilli (Capsicum annuum L.)
Capsicum annuumt1 - Treatment
- particulate NSiO2 foliar application at 750 ppme2
- Outcome
- plant heighte2
- Direction
- increasese2
- Setting
- field experimente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Chilli (Capsicum annuum L.)”
e1“we report the effects of foliar spray (field experiment) of varied concentrations (250, 500, and 750 ppm) of nanoscale silica (NSiO2)”
e2“Significant increases in plant height, chlorophyll content, carotenoids, lycopene, and superoxide dismutase enzymatic activities were recorded with particulate NSiO2 foliar application at 750 ppm”
Claim · model-written summary
Foliar NSiO2 at 750 ppm significantly increased chlorophyll content, carotenoids and lycopene in chilli.
- Taxon
- Chilli (Capsicum annuum L.)Capsicum annuumt1
- Treatment
- particulate NSiO2 foliar application at 750 ppme2
- Outcome
- chlorophyll content, carotenoids, lycopenee2
- Direction
- increasese2
- Setting
- field experimente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Chilli (Capsicum annuum L.)”
e1“we report the effects of foliar spray (field experiment) of varied concentrations (250, 500, and 750 ppm) of nanoscale silica (NSiO2)”
e2“Significant increases in plant height, chlorophyll content, carotenoids, lycopene, and superoxide dismutase enzymatic activities were recorded with particulate NSiO2 foliar application at 750 ppm”
Claim · model-written summary
Foliar NSiO2 at 750 ppm significantly increased superoxide dismutase enzymatic activity in chilli.
- Taxon
- Chilli (Capsicum annuum L.)Capsicum annuumt1
- Treatment
- particulate NSiO2 foliar application at 750 ppme2
- Outcome
- superoxide dismutase enzymatic activitiese2
- Direction
- increasese2
- Setting
- field experimente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Chilli (Capsicum annuum L.)”
e1“we report the effects of foliar spray (field experiment) of varied concentrations (250, 500, and 750 ppm) of nanoscale silica (NSiO2)”
e2“Significant increases in plant height, chlorophyll content, carotenoids, lycopene, and superoxide dismutase enzymatic activities were recorded with particulate NSiO2 foliar application at 750 ppm”
Claim · model-written summary
NSiO2 particles had a size of 26.2 nm by DLS analysis.
Not reportedTaxon
Verbatim
e3“The DLS analysis revealed the size (26.2 nm) and ζ-potential (−43.6 mV) of NSiO2”
Claim · model-written summary
NSiO2 particles had a zeta-potential of −43.6 mV by DLS analysis.
Not reportedTaxon
Verbatim
e3“The DLS analysis revealed the size (26.2 nm) and ζ-potential (−43.6 mV) of NSiO2”
Claim · model-written summary
Foliar application of particulate NSiO2 led to the formation of a silicic acid layer on epidermal cells of chilli.
- Taxon
- Chilli (Capsicum annuum L.)Capsicum annuumt1
- Organ / stage
- epidermal cellse4
- Treatment
- foliar application of particulate NSiO2e4
- Outcome
- formation of a silicic acid layer on epidermal cellse4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Chilli (Capsicum annuum L.)”
e4“foliar application of particulate NSiO2 led to the formation of a silicic acid layer on epidermal cells in chilli”
Claim · model-written summary
Foliar application of particulate nanoscale silica increased the flexural rigidity of chilli epidermal cells.
- Taxon
- Chilli (Capsicum annuum L.)Capsicum annuumt1
- Organ / stage
- epidermal cellse5
- Treatment
- foliar application of particulate nanoscale silicae5
- Outcome
- flexural rigidity of epidermal cellse5
- Direction
- increasese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Chilli (Capsicum annuum L.)”
e5“foliar application of particulate nanoscale silica increases the flexural rigidity of epidermal cells, the chlorophyll content, carotenoids, lycopene content, and yield in chilli”
Claim · model-written summary
Foliar application of particulate nanoscale silica increased chilli yield.
- Taxon
- Chilli (Capsicum annuum L.)Capsicum annuumt1
- Treatment
- foliar application of particulate nanoscale silicae5
- Outcome
- yielde5
- Direction
- increasese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Chilli (Capsicum annuum L.)”
e5“foliar application of particulate nanoscale silica increases the flexural rigidity of epidermal cells, the chlorophyll content, carotenoids, lycopene content, and yield in chilli”
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