Abstract
A TWO FIELD trials were conducted at Sakha Agricultural Research Station 31° 07\\ N and 30° 57\\, Kafr El-Sheikh, Egypt to determine the effect of foliar application of some antioxidants and different sources of nitrogen fertilizers on growth, yield and its components of sunflower (Helianthus annuus L.) cultivar Sakha 53 during the two successive summer seasons 2014 and 2015. A split plot design with four replications was used in the present work. The main plots were randomly assigned to three different sources of nitrogen (urea, ammonium nitrate and ammonium sulfate).Sub plots were randomly devoted to antioxidants treatments i.e. spray with water as control , spray with 150 and 300 mg L-1 of ascorbic acid and spray with 250 and 500 mg L-1 of citric acid. The results revealed that, different nitrogen sources significantly affected growth, yield, yield components and yield quality of sunflower plants during the two seasons. Remarkable results noticed at nitrogen sources ammonium sulfate followed by ammonium nitrate and urea. Also, applications of the antioxidants (ascorbic acid and citric acid) were very effective in improving growth characters namely plant height, stem diameter, head diameter ,leaf area plant-1,seed yield kg fad-1, seed oil %,seed protein % and plant pigments in relative to the control treatment.
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Claims 4
Claim · model-written summary
Ammonium sulfate gave the best sunflower growth and yield results, followed by ammonium nitrate and urea.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- ammonium sulfatee0
- Outcome
- Remarkable resultse0
- Direction
- followed bye0
- Comparator
- ammonium nitrate and ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Remarkable results noticed at nitrogen sources ammonium sulfate followed by ammonium nitrate and urea.”
t0“sunflower”
Claim · model-written summary
Ascorbic acid and citric acid sprays improved sunflower growth characters relative to water control.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- antioxidants (ascorbic acid and citric acid)e0
- Outcome
- plant height, stem diameter, head diametere0
- Direction
- improvinge0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications of the antioxidants (ascorbic acid and citric acid) were very effective in improving growth characters namely plant height, stem diameter, head diameter ,leaf area plant-1,seed yield kg fad-1, seed oil %,seed protein % and plant pigments in relative to the control treatment.”
t0“sunflower”
Claim · model-written summary
Antioxidant sprays improved sunflower leaf area and seed yield relative to control.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- antioxidants (ascorbic acid and citric acid)e0
- Outcome
- leaf area plant-1,seed yield kg fad-1e0
- Direction
- improvinge0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications of the antioxidants (ascorbic acid and citric acid) were very effective in improving growth characters namely plant height, stem diameter, head diameter ,leaf area plant-1,seed yield kg fad-1, seed oil %,seed protein % and plant pigments in relative to the control treatment.”
t0“sunflower”
Claim · model-written summary
Antioxidant sprays improved sunflower seed oil, seed protein, and plant pigments relative to control.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- antioxidants (ascorbic acid and citric acid)e0
- Outcome
- seed oil %,seed protein % and plant pigmentse0
- Direction
- improvinge0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications of the antioxidants (ascorbic acid and citric acid) were very effective in improving growth characters namely plant height, stem diameter, head diameter ,leaf area plant-1,seed yield kg fad-1, seed oil %,seed protein % and plant pigments in relative to the control treatment.”
t0“sunflower”
The same questions in other papers
ascorbic acid · yield · Helianthus annuus (common sunflower)Positive and negative results
4 papers in the same direction as this paper · 1 reporting no difference from an alternative
- positive
- no effect
- positive
2 papers more in this group
See all 6 papers →citric acid · yield · Helianthus annuus (common sunflower)Results agree
1 paper in the same direction as this paper
- positive
citric acid · physiology: pigments · Helianthus annuus (common sunflower)Results agree
1 paper in the same direction as this paper
- positive
ascorbic acid · physiology: pigments · Helianthus annuus (common sunflower)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.