Abstract
Seed priming is a pre-sowing hydration technique which leads to a physiological condition triggering germination and enhancing uniform seedling emergence. It is a promising tool for enhancing drought tolerance in plants which is essential for promoting economic development by coping up with the adverse effects of climate change on crop productivity. So, a better understanding of seed priming efficacy is required. Therefore an experiment was conducted with a view to investigating the effect of seed priming agent on the weed growth and yield performance of high yielding rice variety BRRI dhan29 sown on different dates following dry direct seeded condition in boro season. Two sowing dates viz., 20th January (early or optimum sowing as control) and 20th February (late sowing as high temperature stress during reproductive stage) and seed priming agents included NaCl (20000 and 30000 ppm), KCl (20000 and 30000 ppm), CaCl2 (20000 and 30000 ppm), CuSO4 (50 and 75 ppm), ZnSO4 (10000 and 15000 ppm), Na2MoO4 (2 and 3 ppm) and PEG (100 and 150 ppm) were used. Plant height and tillers of BRRI dhan29 were significantly enhanced when seeds were sown early (20th January) and due to seed priming at early stage and at harvest. Among the yield parameters grains panicle-1, grain yield, and straw yield were produced more by early sowing (20th January). Grains panicle-1, 1000-grain weight, and grain yield were positively influenced due to seed priming. Considering the growth and yield parameters and yield of rice, early sowing and seed priming with KCl or CaCl2 were found as the best. Seed priming produced no significant effect on the weed growth. There was no significant effect of interaction between sowing date and priming agent on crop characters and yield parameters. Therefore, seed priming with 20000 ppm KCl or 20000 ppm CaCl2 and early sowing is recommended for increasing the yield of dry direct seeded boro rice (BRRI dhan29). If somehow early sowing is not possible, seed priming with 20000 ppm KCl or 20000 ppm CaCl2 is highly recommended or mitigating temperature stress during reproductive stage and enhancing yield of BRRI dhan29 under dry direct seeded, late sowncondition.
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Claims 12
Claim · model-written summary
Early sowing significantly enhanced rice plant height and tillers.
- Taxon
- rice
Oryza sativat0 - Material
- BRRI dhan29e0
- Treatment
- sown early (20th January)e0
- Outcome
- Plant height and tillerse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant height and tillers of BRRI dhan29 were significantly enhanced when seeds were sown early (20th January)”
t0“Rice”
Claim · model-written summary
Seed priming significantly enhanced rice height and tillers.
- Taxon
- riceOryza sativat0
- Material
- BRRI dhan29e0
- Treatment
- seed priminge0
- Outcome
- Plant height and tillerse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant height and tillers of BRRI dhan29 were significantly enhanced when seeds were sown early (20th January) and due to seed priming at early stage and at harvest”
t0“Rice”
Claim · model-written summary
Early sowing produced more grains per panicle, grain yield and straw yield.
- Taxon
- riceOryza sativat0
- Treatment
- early sowing (20th January)e0
- Outcome
- grains panicle-1, grain yield, and straw yielde0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grains panicle-1, grain yield, and straw yield were produced more by early sowing (20th January)”
t0“Rice”
Claim · model-written summary
Seed priming positively influenced grains per panicle, 1000 grain weight and grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- seed priminge0
- Outcome
- Grains panicle-1, 1000-grain weight, and grain yielde0
- Direction
- positively influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grains panicle-1, 1000-grain weight, and grain yield were positively influenced due to seed priming”
t0“Rice”
Claim · model-written summary
Early sowing with KCl priming performed best on growth and yield parameters.
- Taxon
- riceOryza sativae0
- Treatment
- seed priming with KCle0
- Outcome
- growth and yield parameters and yield of ricee0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Considering the growth and yield parameters and yield of rice, early sowing and seed priming with KCl or CaCl2 were found as the best”
Claim · model-written summary
Early sowing with CaCl2 priming performed best on growth and yield parameters.
- Taxon
- riceOryza sativae0
- Treatment
- CaCl2e0
- Outcome
- growth and yield parameters and yield of ricee0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Considering the growth and yield parameters and yield of rice, early sowing and seed priming with KCl or CaCl2 were found as the best”
Claim · model-written summary
Seed priming had no statistically significant effect on weed growth.
- Taxon
- riceOryza sativat0
- Treatment
- Seed priminge0
- Outcome
- weed growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed priming produced no significant effect on the weed growth”
t0“Rice”
Claim · model-written summary
The sowing date and priming agent interaction had no statistically significant effect on crop characters and yield.
- Taxon
- riceOryza sativat0
- Treatment
- interaction between sowing date and priming agente0
- Outcome
- crop characters and yield parameterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no significant effect of interaction between sowing date and priming agent on crop characters and yield parameters”
t0“Rice”
Claim · model-written summary
The authors recommend early sowing and 20000 ppm KCl priming to increase dry direct seeded rice yield.
- Taxon
- riceOryza sativae0
- Material
- BRRI dhan29e0
- Treatment
- seed priming with 20000 ppm KCle0
- Outcome
- increasing the yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed priming with 20000 ppm KCl or 20000 ppm CaCl2 and early sowing is recommended for increasing the yield of dry direct seeded boro rice (BRRI dhan29)”
Claim · model-written summary
The authors recommend early sowing and 20000 ppm CaCl2 priming to increase dry direct seeded rice yield.
- Taxon
- riceOryza sativae0
- Material
- BRRI dhan29e0
- Treatment
- 20000 ppm CaCl2e0
- Outcome
- increasing the yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed priming with 20000 ppm KCl or 20000 ppm CaCl2 and early sowing is recommended for increasing the yield of dry direct seeded boro rice (BRRI dhan29)”
Claim · model-written summary
If early sowing is impossible, the authors recommend 20000 ppm KCl priming to mitigate temperature stress and improve yield.
- Taxon
- riceOryza sativat0
- Material
- BRRI dhan29e0
- Treatment
- seed priming with 20000 ppm KCle0
- Outcome
- mitigating temperature stress during reproductive stage and enhancing yielde0
- Qualifier
- early sowing is not possiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“If somehow early sowing is not possible, seed priming with 20000 ppm KCl or 20000 ppm CaCl2 is highly recommended or mitigating temperature stress during reproductive stage and enhancing yield of BRRI dhan29 under dry direct seeded, late sowncondition”
t0“Rice”
Claim · model-written summary
If early sowing is impossible, the authors recommend 20000 ppm CaCl2 priming to mitigate temperature stress and improve yield.
- Taxon
- riceOryza sativat0
- Material
- BRRI dhan29e0
- Treatment
- 20000 ppm CaCl2e0
- Outcome
- mitigating temperature stress during reproductive stage and enhancing yielde0
- Qualifier
- early sowing is not possiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“If somehow early sowing is not possible, seed priming with 20000 ppm KCl or 20000 ppm CaCl2 is highly recommended or mitigating temperature stress during reproductive stage and enhancing yield of BRRI dhan29 under dry direct seeded, late sowncondition”
t0“Rice”
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