Abstract
Rapeseed (Brassica napus L.) encounters a number of difficulties during mechanized harvest as a result of rapid changes in the ripeness of its canopy. Chemical agents such as diquat, glyphosate and glufosinate ammonium accelerate the ripening of rapeseed plants and improve their uniformity. Their application affects the qualitative composition of rapeseed and, as a result, determines the applicability of the material produced for food or energy. This study determined certain quality parameters of rapeseed cv. Californium following the application of diquat, glyphosate and glufosinate ammonium at different stages of canopy ripeness. The preparations, especially when applied at the optimum stage of ripeness, resulted in an increase in the content of basic components such as protein and fat in the seeds. Changes in the fatty acid composition of seeds treated with chemicals at different stages of plant ripeness were not uniform. However, the sum of unsaturated fatty acids increased compared with the control samples after application of these preparations (especially diquat and glufosinate ammonium). The acid and peroxide values obtained for the seed samples were significantly higher, but most of the chemicals used decreased the values of those parameters. The strongest negative effect on seed quality was that of glyphosate, resulting in high values in acid number, especially at optimum time of application (at seed moisture of 12–16% and pod moisture of about 25%, or 29 d from the onset of flowering).
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Claims 6
Claim · model-written summary
Application of the preparations, especially at the optimum stage of ripeness, increased protein and fat content of rapeseed seeds.
- Taxon
- rapeseede0
- Material
- Californiume0
- Treatment
- diquat, glyphosate and glufosinate ammoniume0
- Outcome
- content of basic components such as protein and fate1
- Direction
- increasee1
- Qualifier
- especially when applied at the optimum stage of ripenesse1
Not reportedComparator
Verbatim
e0“This study determined certain quality parameters of rapeseed cv. Californium following the application of diquat, glyphosate and glufosinate ammonium at different stages of canopy ripeness”
e1“The preparations, especially when applied at the optimum stage of ripeness, resulted in an increase in the content of basic components such as protein and fat in the seeds”
Claim · model-written summary
Changes in fatty acid composition of rapeseed seeds treated with the chemicals at different ripeness stages were not uniform.
- Taxon
- rapeseede0
- Material
- Californiume0
- Treatment
- diquat, glyphosate and glufosinate ammoniume0
- Outcome
- fatty acid compositione1
Not reportedComparatorDirection
Verbatim
e0“This study determined certain quality parameters of rapeseed cv. Californium following the application of diquat, glyphosate and glufosinate ammonium at different stages of canopy ripeness”
e1“Changes in the fatty acid composition of seeds treated with chemicals at different stages of plant ripeness were not uniform”
Claim · model-written summary
The sum of unsaturated fatty acids increased compared with control samples after the preparations, especially diquat and glufosinate ammonium.
Verbatim
e0“This study determined certain quality parameters of rapeseed cv. Californium following the application of diquat, glyphosate and glufosinate ammonium at different stages of canopy ripeness”
e1“the sum of unsaturated fatty acids increased compared with the control samples after application of these preparations (especially diquat and glufosinate ammonium)”
Claim · model-written summary
Acid and peroxide values of the seed samples were significantly higher.
Verbatim
e0“This study determined certain quality parameters of rapeseed cv. Californium following the application of diquat, glyphosate and glufosinate ammonium at different stages of canopy ripeness”
e1“The acid and peroxide values obtained for the seed samples were significantly higher”
Claim · model-written summary
Most of the chemicals used decreased the acid and peroxide values.
- Taxon
- rapeseede0
- Material
- Californiume0
- Treatment
- diquat, glyphosate and glufosinate ammoniume0
- Outcome
- values of those parameterse1
- Direction
- decreasede1
Not reportedComparator
Verbatim
e0“This study determined certain quality parameters of rapeseed cv. Californium following the application of diquat, glyphosate and glufosinate ammonium at different stages of canopy ripeness”
e1“most of the chemicals used decreased the values of those parameters”
Claim · model-written summary
Glyphosate had the strongest negative effect on seed quality, giving high acid number, especially at the optimum time of application.
- Taxon
- rapeseede0
- Material
- Californiume0
- Treatment
- glyphosatee1
- Outcome
- acid numbere1
- Direction
- high valuese1
- Qualifier
- especially at optimum time of applicatione2
Not reportedComparator
Verbatim
e0“This study determined certain quality parameters of rapeseed cv. Californium following the application of diquat, glyphosate and glufosinate ammonium at different stages of canopy ripeness”
e1“The strongest negative effect on seed quality was that of glyphosate, resulting in high values in acid number”
e2“especially at optimum time of application (at seed moisture of 12–16% and pod moisture of about 25%, or 29 d from the onset of flowering)”
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See all 37 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.