Abstract
Abstract The aim of the study was to investigate the effects of biostimulants on the resistance to freezing under laboratory-controlled cold conditions and on the growth, development, overwintering and productivity of winter rapeseed and winter wheat in natural field experiments. The effect of free amino acids, macroelements and microelements that contain biostimulants Ruter AA, Terra Sorb and Razormin was tested on cultivars of rapeseed, ‘Hornet H’, and winter wheat, ‘Skagen’ and ‘Kovas’, applying morphometrical methods. We found that biostimulants applied to rapeseed at BBCH 13–14 stage and to wheat at BBCH 14–15 stage under controlled cold stress conditions increased the freezing tolerance of seedlings. Biostimulants more actively increased the freezing resistance of rapeseed seedlings at –5°C compared to that of wheat seedlings. The temperature of –7°C was mortal to rape seedlings, while the resistance of wheat seedlings increased under the influence of the tested biostimulants compared to that of the control seedlings. In natural field experiments, these biostimulants produced a significant effect on plant growth in autumn, acclimation to the cold, plant overwintering, vegetation renewal and, due to this, formation of productivity elements. The effects of Razormin (200 mL/ha), Terra Sorb (2 L/ha) and Ruter AA (1 L/ha) were significantly higher on growth parameters of winter wheat compared to the productivity of winter rapeseed.
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Claims 7
Claim · model-written summary
Biostimulants increased freezing tolerance of rapeseed seedlings under controlled cold stress.
- Taxon
- rapeseede0
- Organ / stage
- BBCH 13–14 stagee0
- Treatment
- biostimulantse0
- Outcome
- freezing tolerance of seedlingse0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“We found that biostimulants applied to rapeseed at BBCH 13–14 stage and to wheat at BBCH 14–15 stage under controlled cold stress conditions increased the freezing tolerance of seedlings.”
Claim · model-written summary
Biostimulants increased freezing tolerance of wheat seedlings under controlled cold stress.
- Taxon
- wheat
Triticum aestivume0 - Organ / stage
- BBCH 14–15 stagee0
- Treatment
- biostimulantse0
- Outcome
- freezing tolerance of seedlingse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We found that biostimulants applied to rapeseed at BBCH 13–14 stage and to wheat at BBCH 14–15 stage under controlled cold stress conditions increased the freezing tolerance of seedlings.”
Claim · model-written summary
At –5°C, biostimulants increased rapeseed seedling freezing resistance more than wheat seedling resistance.
Verbatim
e0“Biostimulants more actively increased the freezing resistance of rapeseed seedlings at –5°C compared to that of wheat seedlings.”
Claim · model-written summary
At –7°C, rape seedlings died.
- Taxon
- rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Outcome
- mortal to rape seedlingse0
- Qualifier
- –7°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“The temperature of –7°C was mortal to rape seedlings, while the resistance of wheat seedlings increased under the influence of the tested biostimulants compared to that of the control seedlings.”
Claim · model-written summary
At –7°C, biostimulants increased wheat seedling resistance relative to controls.
- Taxon
- wheatTriticum aestivume0
- Treatment
- tested biostimulantse0
- Outcome
- resistance of wheat seedlingse0
- Direction
- increasede0
- Qualifier
- –7°Ce0
- Comparator
- control seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The temperature of –7°C was mortal to rape seedlings, while the resistance of wheat seedlings increased under the influence of the tested biostimulants compared to that of the control seedlings.”
Claim · model-written summary
Biostimulants significantly affected autumn growth, cold acclimation, overwintering, vegetation renewal and productivity elements in field experiments.
- Taxon
- plante0
- Treatment
- these biostimulantse0
- Outcome
- plant growth in autumn, acclimation to the cold, plant overwinteringe0
- Setting
- natural field experimentse0
Not reportedComparatorDirection
Verbatim
e0“In natural field experiments, these biostimulants produced a significant effect on plant growth in autumn, acclimation to the cold, plant overwintering, vegetation renewal and, due to this, formation of productivity elements.”
Claim · model-written summary
Razormin, Terra Sorb and Ruter AA had significantly higher effects on winter wheat growth parameters than on winter rapeseed productivity.
- Taxon
- winter wheatTriticum aestivume0
- Outcome
- growth parameters of winter wheate0
- Direction
- significantly highere0
- Comparator
- winter rapeseede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of Razormin (200 mL/ha), Terra Sorb (2 L/ha) and Ruter AA (1 L/ha) were significantly higher on growth parameters of winter wheat compared to the productivity of winter rapeseed.”
The same questions in other papers
other · disease · Triticum aestivum (wheat)Positive and negative results
10 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
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See all 13 papers →other · tolerance: abiotic · Triticum aestivum (wheat)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.