Abstract
Salinity causes cellular damage and limits crop productivity. Accumulation of organic compound is one of the major adaptive mechanisms for salinity tolerance in plants. The main objective of the present study was to mitigate the adverse effects of soil salinity in rice through organic amendments like proline and organic manure. The field experiments were conducted at the farmers field of Batiaghata upazilla under Khulna district with aman rice. The soil was silty clay loam having pH 7.2, EC 6.6 dS/m, CEC 26 meq/100 g soil and organic matter 0.84%. Rice variety BR 23 was used as a test crop. There were 15 treatment combinations with different doses of proline and organic manures. Recommended doses of N, P, K, S and Zn fertilizers were applied to all the experimental plots. Proline was applied as foliar spray at seedling and/or vegetative stages. Organic manures were added to soils during final land preparation. The experiments were laid out in a randomized complete block design with three replications. Significant reductions in growth and yield of rice were observed under saline conditions. Application of both proline and organic manures significantly increased growth, yield contributing characters, and grain and straw yields of rice under salinity conditions. There were no significant variations in growth and yield of rice due to use of different doses of proline and organic manure. Increased nutrient uptake and K+/Na+ ratio were observed in rice due to proline as well as organic manure application under saline conditions. The present study suggests that exogenous proline or organic manure confers tolerance to salinity in rice by increasing K+/Na+ ratio and nutrient uptake.Asian J. Med. Biol. Res. December 2015, 1(3): 478-486
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Claims 5
Claim · model-written summary
Salinity significantly reduced the growth and yield of rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- saline conditionse0
- Outcome
- growth and yielde0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant reductions in growth and yield of rice were observed under saline conditions”
Claim · model-written summary
Proline and organic manures together significantly increased grain and straw yields of rice under salinity.
- Taxon
- riceOryza sativae2
- Treatment
- proline and organic manurese2
- Outcome
- grain and straw yieldse2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Application of both proline and organic manures significantly increased growth, yield contributing characters, and grain and straw yields of rice under salinity conditions”
Claim · model-written summary
Different doses of proline and organic manure did not significantly change rice growth and yield.
- Taxon
- riceOryza sativae3
- Treatment
- different doses of proline and organic manuree3
- Outcome
- growth and yielde3
- Direction
- no significant variationse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“There were no significant variations in growth and yield of rice due to use of different doses of proline and organic manure”
Claim · model-written summary
Proline as well as organic manure application increased nutrient uptake and the K+/Na+ ratio in rice under saline conditions.
- Taxon
- riceOryza sativae4
- Treatment
- proline as well as organic manure applicatione4
- Outcome
- nutrient uptake and K+/Na+ ratioe4
- Direction
- Increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Increased nutrient uptake and K+/Na+ ratio were observed in rice due to proline as well as organic manure application under saline conditions”
Claim · model-written summary
Exogenous proline or organic manure appears to confer salinity tolerance in rice by increasing the K+/Na+ ratio and nutrient uptake.
- Taxon
- riceOryza sativae5
- Treatment
- exogenous proline or organic manuree5
- Outcome
- tolerance to salinitye5
- Qualifier
- by increasing K+/Na+ ratio and nutrient uptakee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The present study suggests that exogenous proline or organic manure confers tolerance to salinity in rice by increasing K+/Na+ ratio and nutrient uptake”
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