Abstract
Selenium (Se) is an essential element to humans, animals and plants, but little is known about roles of Se in yield and antioxidant enzyme activities of rice. In this study, sodium selenate with 10 (T1), 30 (T2) and 50 (T3) mol L -1 concentrations and distilled water (CK) were sprayed onto rice cultivars, or more precisely Meixiangzhan-2 at rupturing stage during the experiments in South China, 2017. Treatments were arranged in a split-plot design with three replications. The result showed that spraying 10, 30 and 50 mol L -1 sodium selenate at rupturing stage could improve the activities of oxidant enzymes such as peroxidase (POD), superoxide (SOD) and catalase (CAT) and lower the malonaldehyde (MDA) concentrations at filling stage. Furthermore, Se applications could enhance the chlorophyll content at middle and late phase of filling stage and grain yield at maturity. Therefore, Se applications could alleviate the detrimental effects of rice leaf senescence by regulating the activity of enzymatic antioxidants and also increasing chlorophyll content at the filling stage which will be helpful to sustain growth and yield formation in rice production.
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Claims 5
Claim · model-written summary
Spraying sodium selenate at rupturing stage improved the activities of peroxidase, superoxide dismutase and catalase at filling stage.
- Taxon
- rice
Oryza sativae0 - Material
- Meixiangzhan-2e0
- Treatment
- sodium selenate at rupturing stagee1
- Gene
- peroxidase (POD), superoxide (SOD) and catalase (CAT)e1
- Outcome
- activities of oxidant enzymese1
- Direction
- improvee1
- Comparator
- distilled water (CK)e0
- Setting
- South China, 2017e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this study, sodium selenate with 10 (T1), 30 (T2) and 50 (T3) mol L -1 concentrations and distilled water (CK) were sprayed onto rice cultivars, or more precisely Meixiangzhan-2 at rupturing stage during the experiments in South China, 2017”
e1“spraying 10, 30 and 50 mol L -1 sodium selenate at rupturing stage could improve the activities of oxidant enzymes such as peroxidase (POD), superoxide (SOD) and catalase (CAT) and lower the malonaldehyde (MDA) concentrations at filling stage”
Claim · model-written summary
Spraying sodium selenate at rupturing stage lowered malonaldehyde concentrations at filling stage.
- Taxon
- riceOryza sativae0
- Organ / stage
- filling stagee1
- Treatment
- sodium selenate at rupturing stagee1
- Outcome
- malonaldehyde (MDA) concentrationse1
- Direction
- lowere1
- Comparator
- distilled water (CK)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this study, sodium selenate with 10 (T1), 30 (T2) and 50 (T3) mol L -1 concentrations and distilled water (CK) were sprayed onto rice cultivars, or more precisely Meixiangzhan-2 at rupturing stage during the experiments in South China, 2017”
e1“spraying 10, 30 and 50 mol L -1 sodium selenate at rupturing stage could improve the activities of oxidant enzymes such as peroxidase (POD), superoxide (SOD) and catalase (CAT) and lower the malonaldehyde (MDA) concentrations at filling stage”
Claim · model-written summary
Se applications increased chlorophyll content at the middle and late phase of filling stage.
- Taxon
- riceOryza sativae0
- Organ / stage
- middle and late phase of filling stagee2
- Treatment
- Se applicationse2
- Outcome
- chlorophyll contente2
- Direction
- enhancee2
- Comparator
- distilled water (CK)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this study, sodium selenate with 10 (T1), 30 (T2) and 50 (T3) mol L -1 concentrations and distilled water (CK) were sprayed onto rice cultivars, or more precisely Meixiangzhan-2 at rupturing stage during the experiments in South China, 2017”
e2“Furthermore, Se applications could enhance the chlorophyll content at middle and late phase of filling stage and grain yield at maturity”
Claim · model-written summary
Se applications increased grain yield at maturity.
- Taxon
- riceOryza sativae0
- Organ / stage
- maturitye2
- Treatment
- Se applicationse2
- Outcome
- grain yielde2
- Direction
- enhancee2
- Comparator
- distilled water (CK)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this study, sodium selenate with 10 (T1), 30 (T2) and 50 (T3) mol L -1 concentrations and distilled water (CK) were sprayed onto rice cultivars, or more precisely Meixiangzhan-2 at rupturing stage during the experiments in South China, 2017”
e2“Furthermore, Se applications could enhance the chlorophyll content at middle and late phase of filling stage and grain yield at maturity”
Claim · model-written summary
Se applications may alleviate the detrimental effects of rice leaf senescence by regulating the activity of enzymatic antioxidants.
- Taxon
- riceOryza sativae3
- Treatment
- Se applicationse3
- Outcome
- detrimental effects of rice leaf senescencee3
- Qualifier
- by regulating the activity of enzymatic antioxidantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Se applications could alleviate the detrimental effects of rice leaf senescence by regulating the activity of enzymatic antioxidants”
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