Abstract
In order to study the effects of silicon (Si) and zinc (Zn) sources on yield components, seed yield, seed oil content and nutrient concentrations in canola grain at normal and late planting dates, a field experiment was conducted as a split plot-factorial in a randomized complete block design with three replications at Ghaemshahr Agricultural Research Station during the 2017-2018 and 2018-2019 growing seasons. Planting dates as the main plot at two levels (normal planting date, late planting date), silicon fertilizer sources at three levels (control, calcium silicate, nano-Si) and zinc fertilizer sources at three levels (control, zinc sulfate, nano-Zn) were considered as sub-plots. The results showed that all the agronomical and physiological traits studied improved in the normal planting date, while delay in planting date led to a significant reduction in the traits. Application of Si and Zn by both nanoparticles (NPs) and conventional forms significantly increased the yield components, seed yield, seed oil content and nutrient uptake in grain compared to the control plants. There was no significant difference between application of nano-Si and calcium silicate in terms of rapeseed yield and quality. The nano-Zn treated plants showed both higher seed yield and higher nutrient uptake, when compared to zinc sulfate treated plants. The combined application of Si with Zn, especially in the form of nanoparticles resulted in higher seed oil content than the application of Si or Zn alone. In general, the application of Si and Zn in the form of nanoparticles at normal planting date is a promising option to increasing seed yield and improving nutrient uptake in rapeseed.
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Claims 8
Claim · model-written summary
Late planting significantly reduced studied agronomic and physiological traits.
- Taxon
- canola
.jpg?width=60)
Brassica napus var. napust0 - Treatment
- delay in planting datee0
- Outcome
- agronomical and physiological traitse0
- Direction
- reductione0
- Comparator
- normal planting datee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The results showed that all the agronomical and physiological traits studied improved in the normal planting date, while delay in planting date led to a significant reduction in the traits.”
t0“Canola”
Claim · model-written summary
Silicon and zinc nanoparticles and conventional forms increased yield components and seed yield against controls.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- Si and Zn by both nanoparticles (NPs) and conventional formse0
- Outcome
- yield components, seed yielde0
- Direction
- increasede0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Si and Zn by both nanoparticles (NPs) and conventional forms significantly increased the yield components, seed yield, seed oil content and nutrient uptake in grain compared to the control plants.”
t0“Canola”
Claim · model-written summary
Silicon and zinc applications increased seed oil content and nutrient uptake in grain.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- Si and Zn by both nanoparticles (NPs) and conventional formse0
- Outcome
- seed oil content and nutrient uptake in graine0
- Direction
- increasede0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Si and Zn by both nanoparticles (NPs) and conventional forms significantly increased the yield components, seed yield, seed oil content and nutrient uptake in grain compared to the control plants.”
t0“Canola”
Claim · model-written summary
Nano-Si and calcium silicate did not significantly differ in rapeseed yield and quality.
Verbatim
e0“There was no significant difference between application of nano-Si and calcium silicate in terms of rapeseed yield and quality.”
Claim · model-written summary
Nano-Zn produced higher seed yield than zinc sulfate.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- nano-Zne0
- Outcome
- seed yielde0
- Direction
- highere0
- Comparator
- zinc sulfatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nano-Zn treated plants showed both higher seed yield and higher nutrient uptake, when compared to zinc sulfate treated plants.”
t0“Canola”
Claim · model-written summary
Nano-Zn produced higher nutrient uptake than zinc sulfate.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- nano-Zne0
- Outcome
- nutrient uptakee0
- Direction
- highere0
- Comparator
- zinc sulfatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nano-Zn treated plants showed both higher seed yield and higher nutrient uptake, when compared to zinc sulfate treated plants.”
t0“Canola”
Claim · model-written summary
Combined silicon and zinc, especially as nanoparticles, increased seed oil content over either alone.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- combined application of Si with Zne0
- Outcome
- seed oil contente0
- Direction
- highere0
- Qualifier
- especially in the form of nanoparticlese0
- Comparator
- application of Si or Zn alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combined application of Si with Zn, especially in the form of nanoparticles resulted in higher seed oil content than the application of Si or Zn alone.”
t0“Canola”
Claim · model-written summary
The authors recommend nanoparticle silicon and zinc at normal planting for yield and nutrient uptake.
Verbatim
e0“In general, the application of Si and Zn in the form of nanoparticles at normal planting date is a promising option to increasing seed yield and improving nutrient uptake in rapeseed.”
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