Abstract
Agricultural land use in coastal area covers 53% and the lands are mostly affected by salinity. Besides, the average yield of rice in these areas is very low due to salinity. Although, BRRI has developed salt registrant rice varieties, the average production can be improved through soil management. Thus, a pot experiment was conducted in the net house of Department of Agronomy, Bangladesh Agricultural University, Mymensingh, during March to August 2010 to investigate the ameliorative effect of ash application on yield and yield attributes of rice under various salinity levels. Rice var. BRRI dhan47 (a salt tolerant variety) was used in the experiment. The sodium chloride induced salinity levels were 20, 40, 60, 80 and 100 mM NaCl and the levels of ash applied were 1.5, 3, 4.5 and 6 t ha-1. Results revealed that the different levels of salinity had significant adverse effect on plant height, tillers hill-1, panicle hill-1, grains panicle-1, 1000-grain weight, grain yield, biological yield and harvest index. All the plants eventually died when they were exposed to salinity level of 40 mM NaCl or more and could not survive up to maturity. Application of ash enhanced the yield attributes and yield of rice under different salinity levels compared to those without ash. It was concluded that application of ash at the rate of 6 t ha-1 ameliorated the salinity stress effect on rice yield of BRRI dhan47.Bangladesh Agron. J. 2017, 20(1): 31-36
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Claims 5
Claim · model-written summary
Salinity significantly reduced rice height, tillers, panicles, grains, grain weight, grain yield, biological yield and harvest index.
- Taxon
- Rice
Oryza sativat0 - Treatment
- different levels of salinitye0
- Outcome
- plant height, tillers hill-1, panicle hill-1, grains panicle-1, 1000-grain weight, grain yield, biological yield and harvest indexe0
- Direction
- adverse effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“different levels of salinity had significant adverse effect on plant height, tillers hill-1, panicle hill-1, grains panicle-1, 1000-grain weight, grain yield, biological yield and harvest index”
e1“The sodium chloride induced salinity levels were 20, 40, 60, 80 and 100 mM NaCl”
t0“Rice”
Claim · model-written summary
All rice plants died at 40 mM NaCl or higher before maturity.
- Taxon
- RiceOryza sativat0
- Organ / stage
- maturitye0
- Treatment
- 40 mM NaCl or moree0
- Outcome
- plants eventually diede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the plants eventually died when they were exposed to salinity level of 40 mM NaCl or more and could not survive up to maturity”
t0“Rice”
Claim · model-written summary
Ash improved rice yield attributes under salinity relative to no ash.
- Taxon
- riceOryza sativae0
- Treatment
- Application of ashe0
- Outcome
- yield attributese0
- Direction
- enhancede0
- Comparator
- those without ashe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of ash enhanced the yield attributes and yield of rice under different salinity levels compared to those without ash”
Claim · model-written summary
Ash improved rice yield under salinity relative to no ash.
- Taxon
- riceOryza sativae0
- Treatment
- Application of ashe0
- Outcome
- yield of ricee0
- Direction
- enhancede0
- Comparator
- those without ashe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of ash enhanced the yield attributes and yield of rice under different salinity levels compared to those without ash”
Claim · model-written summary
The authors conclude that 6 t ha-1 ash ameliorates salinity effects on BRRI dhan47 yield.
- Taxon
- riceOryza sativae0
- Material
- BRRI dhan47e0
- Treatment
- ash at the rate of 6 t ha-1e0
- Outcome
- salinity stress effect on rice yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of ash at the rate of 6 t ha-1 ameliorated the salinity stress effect on rice yield of BRRI dhan47”
The same questions in other papers
salinity · yield · Oryza sativa (rice)Positive and negative results
137 papers in the same direction as this paper · 29 in the opposite direction
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