Abstract
Aims: Rice grown in late Rabi season frequently results poor germination and establishment because of exposure to extreme low temperature or chilling stress. Seed priming is an effective seed treating technique for uniform and good germination in various crops under different abiotic stresses. The present study was undertaken to assess the role of different seed priming agents in seed germination and seedling growth of rice (BRRI Dhan 29) under chilling stress (CS). Place and Duration of Study: a pot experiment was carried out at the Department of Seed Science and Technology, Bangladesh Agricultural University during Late November – Mid December 2021. Methodology: The rice seeds (BRRI Dhan 29) were soaked in different priming agents (hydro-priming, 20 mM proline and glycine betaine) for 30 min. The primed seeds were exposed to cold stress (under 5°C) in the refrigerator. The untreated seeds were used as control. Results: The outcomes shown that proline (Pro) and glycine betaine (GB) priming had a favorable effect on germination and survival rate, shoot and root length, shoot and root weight, and photosynthetic pigments of leaves under CS. Among the treatments, Pro and GB at 20 mM and warm water performed better; while priming with tap water and Pro and GB at a concentration of demonstrated insignificant performance over control but considerable over stress in the majority of the parameters. The findings showed that seed priming generally has a favorable effect on germination and survival, shoot and root length and weight, and leaf chlorophyll content. Conclusion: Proline, betaine, or warm water priming (at 45°C for 5 min.) can be thought of as a lasting priming agent. This means that priming may be an efficient strategy to boost seed germination and better seedling growth of rice under chilling stress.
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Claims 8
Claim · model-written summary
Proline and glycine betaine seed priming had a favorable effect on germination and survival rate under chilling stress.
- Taxon
- rice
Oryza sativae0 - Treatment
- proline (Pro) and glycine betaine (GB) priminge1
- Outcome
- germination and survival ratee1
- Direction
- favorablee1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling growth of rice (BRRI Dhan 29) under chilling stress”
e1“The outcomes shown that proline (Pro) and glycine betaine (GB) priming had a favorable effect on germination and survival rate, shoot and root length, shoot and root weight, and photosynthetic pigments of leaves under CS”
e2“The untreated seeds were used as control”
Claim · model-written summary
Proline and glycine betaine seed priming had a favorable effect on shoot and root length under chilling stress.
- Taxon
- riceOryza sativae0
- Treatment
- proline (Pro) and glycine betaine (GB) priminge1
- Outcome
- shoot and root lengthe1
- Direction
- favorablee1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling growth of rice (BRRI Dhan 29) under chilling stress”
e1“The outcomes shown that proline (Pro) and glycine betaine (GB) priming had a favorable effect on germination and survival rate, shoot and root length, shoot and root weight, and photosynthetic pigments of leaves under CS”
e2“The untreated seeds were used as control”
Claim · model-written summary
Proline and glycine betaine seed priming had a favorable effect on shoot and root weight under chilling stress.
- Taxon
- riceOryza sativae0
- Treatment
- proline (Pro) and glycine betaine (GB) priminge1
- Outcome
- shoot and root weighte1
- Direction
- favorablee1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling growth of rice (BRRI Dhan 29) under chilling stress”
e1“The outcomes shown that proline (Pro) and glycine betaine (GB) priming had a favorable effect on germination and survival rate, shoot and root length, shoot and root weight, and photosynthetic pigments of leaves under CS”
e2“The untreated seeds were used as control”
Claim · model-written summary
Proline and glycine betaine seed priming had a favorable effect on photosynthetic pigments of leaves under chilling stress.
- Taxon
- riceOryza sativae0
- Organ / stage
- leavese1
- Treatment
- proline (Pro) and glycine betaine (GB) priminge1
- Outcome
- photosynthetic pigments of leavese1
- Direction
- favorablee1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling growth of rice (BRRI Dhan 29) under chilling stress”
e1“The outcomes shown that proline (Pro) and glycine betaine (GB) priming had a favorable effect on germination and survival rate, shoot and root length, shoot and root weight, and photosynthetic pigments of leaves under CS”
e2“The untreated seeds were used as control”
Claim · model-written summary
Among treatments, priming with proline and glycine betaine at 20 mM and warm water performed better.
- Taxon
- riceOryza sativae0
- Treatment
- Pro and GB at 20 mM and warm watere5
- Outcome
- performed bettere5
- Direction
- bettere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling growth of rice (BRRI Dhan 29) under chilling stress”
e5“Among the treatments, Pro and GB at 20 mM and warm water performed better”
Claim · model-written summary
Priming with tap water and the lower-concentration priming agents showed insignificant performance over control.
- Taxon
- riceOryza sativae0
- Treatment
- priming with tap watere6
- Outcome
- insignificant performancee6
- Comparator
- controle6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling growth of rice (BRRI Dhan 29) under chilling stress”
e6“priming with tap water and Pro and GB at a concentration of demonstrated insignificant performance over control”
Claim · model-written summary
Priming may be an efficient strategy to boost seed germination and seedling growth of rice under chilling stress.
- Taxon
- riceOryza sativae7
- Outcome
- efficient strategy to boost seed germinatione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“priming may be an efficient strategy to boost seed germination and better seedling growth of rice under chilling stress”
Claim · model-written summary
Proline, betaine or warm water priming can be considered a lasting priming agent for rice.
- Taxon
- riceOryza sativae0
- Outcome
- lasting priming agente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling growth of rice (BRRI Dhan 29) under chilling stress”
e1“Proline, betaine, or warm water priming (at 45°C for 5 min.) can be thought of as a lasting priming agent”
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See all 19 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.