Abstract
In order to investigate the effect of different ratios of ammonium: nitrate on the photosynthesis and fatty acid composition in canola (Brassica napus L.) under different levels of salinity, an experiment was conducted as a factorial based on complete randomize design at Agricultural Research Center in East Azerbaijan in 2010. The first factor was different ratios of nitrogen sources to ammonium: nitrate at four levels as 0: 100, 25: 75, 50:50 and 75: 25 and the second factor was two levels of salinity as 0 and 200 mM NaCl. Results showed that the highest fresh and dry weights, leaf area and relative water content (RWC), photosynthesis rate and potassium concentration in the leaves were obtained at ammonium: nitrate (50: 50) in non-saline condition. With increasing salinity, fresh and dry weights, leaf area, relative water content (RWC), photosynthesis and leaf potassium were significantly reduced. It seems that with increasing salinity the application of nitrogen (nitrate to ammonium) ratio of 50/50 caused less injure in crop. In treatments using high amounts of ammonium by canola, higher levels of fatty acids was obtained than feeding conditions with nitrate. The highest ratio of fatty acids was measured in saline conditions when the application of nitrate :ammonium was as 25:75.
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Claims 7
Claim · model-written summary
Ammonium:nitrate 50:50 in non-saline condition gave the highest fresh weight, dry weight and leaf area of canola.
- Taxon
- canola
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Brassica napus var. napuse1 - Treatment
- ammonium: nitrate (50: 50)e2
- Outcome
- fresh and dry weights, leaf areae2
- Direction
- higheste2
- Qualifier
- in non-saline conditione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“effect of different ratios of ammonium: nitrate on the photosynthesis and fatty acid composition in canola (Brassica napus L.) under different levels of salinity”
e2“the highest fresh and dry weights, leaf area and relative water content (RWC), photosynthesis rate and potassium concentration in the leaves were obtained at ammonium: nitrate (50: 50) in non-saline condition”
Claim · model-written summary
Ammonium:nitrate 50:50 in non-saline condition gave the highest relative water content, photosynthesis rate and leaf potassium concentration of canola.
- Taxon
- canolaBrassica napus var. napuse1
- Organ / stage
- leavese2
- Treatment
- ammonium: nitrate (50: 50)e2
- Outcome
- relative water content (RWC), photosynthesis rate and potassium concentration in the leavese2
- Direction
- higheste2
- Qualifier
- in non-saline conditione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“effect of different ratios of ammonium: nitrate on the photosynthesis and fatty acid composition in canola (Brassica napus L.) under different levels of salinity”
e2“the highest fresh and dry weights, leaf area and relative water content (RWC), photosynthesis rate and potassium concentration in the leaves were obtained at ammonium: nitrate (50: 50) in non-saline condition”
Claim · model-written summary
With increasing salinity, fresh and dry weights and leaf area of canola were significantly reduced.
- Taxon
- canolaBrassica napus var. napuse1
- Treatment
- increasing salinitye3
- Outcome
- fresh and dry weights, leaf areae3
- Direction
- significantly reducede3
- Qualifier
- 200 mM NaCle4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“effect of different ratios of ammonium: nitrate on the photosynthesis and fatty acid composition in canola (Brassica napus L.) under different levels of salinity”
e3“With increasing salinity, fresh and dry weights, leaf area, relative water content (RWC), photosynthesis and leaf potassium were significantly reduced”
e4“the second factor was two levels of salinity as 0 and 200 mM NaCl”
Claim · model-written summary
With increasing salinity, relative water content, photosynthesis and leaf potassium of canola were significantly reduced.
- Taxon
- canolaBrassica napus var. napuse1
- Organ / stage
- leafe3
- Treatment
- increasing salinitye3
- Outcome
- relative water content (RWC), photosynthesis and leaf potassiume3
- Direction
- significantly reducede3
- Qualifier
- 200 mM NaCle4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“effect of different ratios of ammonium: nitrate on the photosynthesis and fatty acid composition in canola (Brassica napus L.) under different levels of salinity”
e3“With increasing salinity, fresh and dry weights, leaf area, relative water content (RWC), photosynthesis and leaf potassium were significantly reduced”
e4“the second factor was two levels of salinity as 0 and 200 mM NaCl”
Claim · model-written summary
Under increasing salinity, the ammonium:nitrate ratio of 50/50 seemed to cause less injury in canola.
- Taxon
- canolaBrassica napus var. napuse1
- Treatment
- nitrogen (nitrate to ammonium) ratio of 50/50e5
- Outcome
- injure in crope5
- Direction
- lesse5
- Qualifier
- with increasing salinitye5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“effect of different ratios of ammonium: nitrate on the photosynthesis and fatty acid composition in canola (Brassica napus L.) under different levels of salinity”
e5“It seems that with increasing salinity the application of nitrogen (nitrate to ammonium) ratio of 50/50 caused less injure in crop”
Claim · model-written summary
High ammonium supply gave higher levels of fatty acids in canola than nitrate feeding.
- Taxon
- canolaBrassica napus var. napuse6
- Treatment
- high amounts of ammoniume6
- Outcome
- levels of fatty acidse6
- Direction
- highere6
- Comparator
- feeding conditions with nitratee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“In treatments using high amounts of ammonium by canola, higher levels of fatty acids was obtained than feeding conditions with nitrate”
Claim · model-written summary
The highest fatty acid ratio in canola was measured in saline conditions with nitrate:ammonium of 25:75.
- Taxon
- canolaBrassica napus var. napuse1
- Treatment
- the application of nitrate :ammonium was as 25:75e7
- Outcome
- ratio of fatty acidse7
- Direction
- higheste7
- Qualifier
- in saline conditionse7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“effect of different ratios of ammonium: nitrate on the photosynthesis and fatty acid composition in canola (Brassica napus L.) under different levels of salinity”
e7“The highest ratio of fatty acids was measured in saline conditions when the application of nitrate :ammonium was as 25:75”
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See all 79 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.