Abstract
A pot experiment was carried out during 2014 and 2015 seasons to study the effect of nitrogen fertilization (0, 1, 2 and 3 g N pot-1) in the form of calcium nitrate Ca (NO3)2 (15.5% N) and four spray levels with ascorbic acid (0, 50 and 100 ppm) on growth, essential oil content and chemical composition of rosemary plant. Plastic pots of 25 cm diameter were used. Experimental treatments were laid out in a split plot design. Tow cuts were taken each season. Application of nitrogen up to 3 g N pot-1 enhanced all studied growth parameters in terms of plant height, number of branches, fresh and dry weight of leaves as well as total chlorophyll, total carbohydrates, N, P, K contents. Essential oil content was enhanced by adding of nitrogen up to 2 g N pot-1, thereafter more increase in nitrogen, significantly decreased essential oil content. Spraying rosemary plants with ascorbic acid up to 100 ppm, significantly enhanced plant height, branch number, fresh and dry weight of leaves and essential oil content as well as total chlorophyll, total carbohydrates, N, P and K contents. Rosemary plants fertilized with 3 g N pot-1 and sprayed with 100 ppm ascorbic acid gave the highest value of each of plant height, number of branches, fresh and dry weight of leaves, total chlorophyll and total carbohydrates, while the highest essential oil percentage was obtained from plants fertilized with 2 g N pot-1 and sprayed with 100 ppm of ascorbic acid. Alpha-pinene, Eucalyptol, Linalool, Camphor, Endo-borneol and Cis-pinane were the major constituents of the essential oil profile, over all combinations of nitrogen and ascorbic acid levels in both cuts.
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Claims 9
Claim · model-written summary
Nitrogen up to 3 g N pot-1 enhanced rosemary growth traits.
- Taxon
- ROSEMARY PLANT
Salvia rosmarinust0 - Treatment
- nitrogen up to 3 g N pot-1e0
- Outcome
- plant height, number of branches, fresh and dry weight of leavese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of nitrogen up to 3 g N pot-1 enhanced all studied growth parameters in terms of plant height, number of branches, fresh and dry weight of leaves”
t0“ROSEMARY PLANT”
Claim · model-written summary
Nitrogen up to 3 g N pot-1 enhanced rosemary chlorophyll, carbohydrate, and nutrient contents.
- Taxon
- ROSEMARY PLANTSalvia rosmarinust0
- Treatment
- nitrogen up to 3 g N pot-1e1
- Outcome
- total chlorophyll, total carbohydrates, N, P, K contentse0
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total chlorophyll, total carbohydrates, N, P, K contents”
e1“Application of nitrogen up to 3 g N pot-1 enhanced”
t0“ROSEMARY PLANT”
Claim · model-written summary
Nitrogen up to 2 g N pot-1 enhanced rosemary essential oil content.
- Taxon
- ROSEMARY PLANTSalvia rosmarinust0
- Treatment
- nitrogen up to 2 g N pot-1e0
- Outcome
- Essential oil contente0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Essential oil content was enhanced by adding of nitrogen up to 2 g N pot-1”
t0“ROSEMARY PLANT”
Claim · model-written summary
Nitrogen beyond 2 g N pot-1 significantly decreased rosemary essential oil content.
- Taxon
- ROSEMARY PLANTSalvia rosmarinust0
- Treatment
- more increase in nitrogene0
- Outcome
- essential oil contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thereafter more increase in nitrogen, significantly decreased essential oil content”
t0“ROSEMARY PLANT”
Claim · model-written summary
Ascorbic acid up to 100 ppm significantly enhanced rosemary growth traits and essential oil content.
- Taxon
- rosemary plantsSalvia rosmarinuse0
- Treatment
- ascorbic acid up to 100 ppme0
- Outcome
- plant height, branch number, fresh and dry weight of leaves and essential oil contente0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying rosemary plants with ascorbic acid up to 100 ppm, significantly enhanced plant height, branch number, fresh and dry weight of leaves and essential oil content”
Claim · model-written summary
Ascorbic acid up to 100 ppm significantly enhanced rosemary chlorophyll, carbohydrates, and nutrients.
- Taxon
- rosemary plantsSalvia rosmarinuse0
- Treatment
- ascorbic acid up to 100 ppme0
- Outcome
- total chlorophyll, total carbohydrates, N, P and K contentse1
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying rosemary plants with ascorbic acid up to 100 ppm, significantly enhanced”
e1“total chlorophyll, total carbohydrates, N, P and K contents”
Claim · model-written summary
Combined 3 g N pot-1 and 100 ppm ascorbic acid produced the highest rosemary growth and biochemical trait values.
- Taxon
- Rosemary plantsSalvia rosmarinuse0
- Treatment
- fertilized with 3 g N pot-1 and sprayed with 100 ppm ascorbic acide0
- Outcome
- plant height, number of branches, fresh and dry weight of leaves, total chlorophyll and total carbohydratese0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rosemary plants fertilized with 3 g N pot-1 and sprayed with 100 ppm ascorbic acid gave the highest value of each of plant height, number of branches, fresh and dry weight of leaves, total chlorophyll and total carbohydrates”
Claim · model-written summary
Combined 2 g N pot-1 and 100 ppm ascorbic acid produced the highest rosemary essential oil percentage.
- Taxon
- ROSEMARY PLANTSalvia rosmarinust0
- Treatment
- fertilized with 2 g N pot-1 and sprayed with 100 ppm of ascorbic acide0
- Outcome
- essential oil percentagee0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest essential oil percentage was obtained from plants fertilized with 2 g N pot-1 and sprayed with 100 ppm of ascorbic acid”
t0“ROSEMARY PLANT”
Claim · model-written summary
Six named compounds were major constituents of rosemary essential oil across treatments and cuts.
- Taxon
- ROSEMARY PLANTSalvia rosmarinust0
- Outcome
- Alpha-pinene, Eucalyptol, Linalool, Camphor, Endo-borneol and Cis-pinane were the major constituentse0
- Qualifier
- over all combinations of nitrogen and ascorbic acid levels in both cutse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alpha-pinene, Eucalyptol, Linalool, Camphor, Endo-borneol and Cis-pinane were the major constituents of the essential oil profile, over all combinations of nitrogen and ascorbic acid levels in both cuts”
t0“ROSEMARY PLANT”
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See all 6 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.