Abstract
Poor seed germination is a crucial yield-limiting factor when winter wheat is sown under low temperature. The objective of this study was to evaluate the role of ascorbic acid (AsA) in the extenuation of the harmful effects of low temperature at early and reproductive stages of wheat during 2016–2017 (15 November to 15 December). A two-year experiment was conducted using a randomized complete block design with split plot arrangement and with three replicates. Sowing dates (15 November and 15 December) were allotted to the main plot while seed priming (control, hydro-priming, and AsA priming) were allotted to the sub-plot. Results demonstrated that AsA priming significantly boosted different yield characteristics including chlorophyll content, tillers per unit area, number of grains per spike, and 1000-grain weight, contributing higher productivity and biomass during 2016–2017. The results further revealed that AsA could induce the up-regulation of diverse antioxidants (super oxide dismutase (SOD), peroxidase (POD), and catalase (CAT)), thus offsetting the adverse effects of sub-supra optimum temperatures of late sowing wheat. It is therefore concluded in this work that AsA priming enhances stand establishment, yield and yield-related traits, antioxidant enzyme activities, and chlorophyll contents when wheat is sown under low temperature.
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Claims 5
Claim · model-written summary
Ascorbic acid priming significantly boosted tillers per unit area, number of grains per spike and 1000-grain weight of winter wheat compared with control.
- Taxon
- winter wheat
Triticum aestivume0 - Treatment
- AsA priminge1
- Outcome
- tillers per unit area, number of grains per spike, and 1000-grain weighte1
- Direction
- boostede1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Poor seed germination is a crucial yield-limiting factor when winter wheat is sown under low temperature”
e1“AsA priming significantly boosted different yield characteristics including chlorophyll content, tillers per unit area, number of grains per spike, and 1000-grain weight”
e2“seed priming (control, hydro-priming, and AsA priming)”
Claim · model-written summary
Ascorbic acid priming significantly boosted chlorophyll content of winter wheat compared with control.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- AsA priminge1
- Outcome
- chlorophyll contente1
- Direction
- boostede1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Poor seed germination is a crucial yield-limiting factor when winter wheat is sown under low temperature”
e1“AsA priming significantly boosted different yield characteristics including chlorophyll content, tillers per unit area, number of grains per spike, and 1000-grain weight”
e2“seed priming (control, hydro-priming, and AsA priming)”
Claim · model-written summary
Ascorbic acid priming gave higher productivity and biomass of winter wheat compared with control.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- AsA priminge1
- Outcome
- productivity and biomasse3
- Direction
- highere3
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Poor seed germination is a crucial yield-limiting factor when winter wheat is sown under low temperature”
e1“AsA priming significantly boosted different yield characteristics including chlorophyll content, tillers per unit area, number of grains per spike, and 1000-grain weight”
e2“seed priming (control, hydro-priming, and AsA priming)”
e3“contributing higher productivity and biomass”
Claim · model-written summary
Ascorbic acid could induce up-regulation of diverse antioxidants in winter wheat sown under low temperature, which the authors suggest offsets the adverse effects of late sowing.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- AsAe4
- Gene
- super oxide dismutase (SOD), peroxidase (POD), and catalase (CAT)e4
- Outcome
- diverse antioxidantse4
- Direction
- up-regulatione4
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Poor seed germination is a crucial yield-limiting factor when winter wheat is sown under low temperature”
e2“seed priming (control, hydro-priming, and AsA priming)”
e4“AsA could induce the up-regulation of diverse antioxidants (super oxide dismutase (SOD), peroxidase (POD), and catalase (CAT))”
Claim · model-written summary
Ascorbic acid priming enhances stand establishment of wheat sown under low temperature, according to the authors.
- Taxon
- wheatTriticum aestivume5
- Treatment
- AsA priminge5
- Outcome
- stand establishmente5
- Direction
- enhancese5
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“seed priming (control, hydro-priming, and AsA priming)”
e5“AsA priming enhances stand establishment, yield and yield-related traits, antioxidant enzyme activities, and chlorophyll contents when wheat is sown under low temperature”
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