Abstract
Alternate wetting and drying irrigation (AWD) plays crucial roles in regulating the cooking and eating quality of rice (Oryza sativa L.). However, it remains unclear about how AWD influences rice cooking and eating quality. Lipid and free fatty acids in grains are positively related with cooking and eating quality of rice. In this study, Yangdao 6 (YD6, a conventional taste indica inbred) and Nanjing 9108 (NJ9108, a superior taste japonica inbred) were planted in the field with conventional irrigation (CI), alternate wetting and moderate drying irrigation (AWMD), and alternate wetting and severe drying irrigation (AWSD) from 10 days after transplanting to maturity. The relationships between the biosynthesis of lipid and free fatty acids in grains and cooking and eating quality of rice were investigated. Compared with CI treatment, the AWMD significantly increased contents of lipid, total free fatty acids (TFFAs), free unsaturated fatty acids (FUFAs), linoleic acid, and oleic acid in milled rice by promoting activities of the enzymes associated with lipid synthesis, while AWSD regime exerted the opposite effect. Correlation analysis showed that higher contents of lipid, TFFAs, FUFAs, linoleic acid, and oleic acid were more beneficial to improvement in rice cooking and eating quality. These results demonstrated that AWMD regime could improve cooking and eating quality of milled rice by optimizing lipid and fatty acid synthesis in rice grains.
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Claims 6
Claim · model-written summary
Moderate drying irrigation increased lipid, total free fatty acid and free unsaturated fatty acid contents versus conventional irrigation.
- Taxon
- rice (Oryza sativa L.)
Oryza sativae2 - Organ / stage
- milled ricee0
- Treatment
- alternate wetting and moderate drying irrigation (AWMD)e1
- Outcome
- contents of lipid, total free fatty acids (TFFAs), free unsaturated fatty acids (FUFAs)e0
- Direction
- increasede0
- Comparator
- CI treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with CI treatment, the AWMD significantly increased contents of lipid, total free fatty acids (TFFAs), free unsaturated fatty acids (FUFAs), linoleic acid, and oleic acid in milled rice”
e1“alternate wetting and moderate drying irrigation (AWMD)”
e2“rice (Oryza sativa L.)”
Claim · model-written summary
Moderate drying irrigation increased linoleic acid and oleic acid contents versus conventional irrigation.
- Taxon
- rice (Oryza sativa L.)Oryza sativae2
- Treatment
- alternate wetting and moderate drying irrigation (AWMD)e1
- Outcome
- linoleic acid, and oleic acide0
- Direction
- increasede0
- Comparator
- CI treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with CI treatment, the AWMD significantly increased contents of lipid, total free fatty acids (TFFAs), free unsaturated fatty acids (FUFAs), linoleic acid, and oleic acid in milled rice”
e1“alternate wetting and moderate drying irrigation (AWMD)”
e2“rice (Oryza sativa L.)”
Claim · model-written summary
Severe drying irrigation had the opposite effect on grain lipid and free fatty acid contents.
- Taxon
- rice (Oryza sativa L.)Oryza sativae3
- Treatment
- alternate wetting and severe drying irrigation (AWSD)e2
- Outcome
- contents of lipid, total free fatty acids (TFFAs), free unsaturated fatty acids (FUFAs), linoleic acid, and oleic acid in milled ricee1
- Direction
- opposite effecte0
- Comparator
- CI treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while AWSD regime exerted the opposite effect”
e1“Compared with CI treatment, the AWMD significantly increased contents of lipid, total free fatty acids (TFFAs), free unsaturated fatty acids (FUFAs), linoleic acid, and oleic acid in milled rice”
e2“alternate wetting and severe drying irrigation (AWSD)”
e3“rice (Oryza sativa L.)”
Claim · model-written summary
Activities of enzymes associated with lipid synthesis were promoted by moderate drying irrigation.
- Taxon
- rice (Oryza sativa L.)Oryza sativae3
- Treatment
- alternate wetting and moderate drying irrigation (AWMD)e2
- Outcome
- activities of the enzymes associated with lipid synthesise0
- Direction
- promotinge0
- Comparator
- CI treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by promoting activities of the enzymes associated with lipid synthesis”
e1“Compared with CI treatment, the AWMD significantly increased contents of lipid”
e2“alternate wetting and moderate drying irrigation (AWMD)”
e3“rice (Oryza sativa L.)”
Claim · model-written summary
Higher grain lipid and fatty acid contents were associated with better cooking and eating quality.
- Taxon
- rice (Oryza sativa L.)Oryza sativae1
- Compound
- lipid, TFFAs, FUFAs, linoleic acid, and oleic acide0
- Outcome
- rice cooking and eating qualitye0
- Direction
- improvemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher contents of lipid, TFFAs, FUFAs, linoleic acid, and oleic acid were more beneficial to improvement in rice cooking and eating quality”
e1“rice (Oryza sativa L.)”
Claim · model-written summary
Moderate drying irrigation could improve cooking and eating quality of milled rice.
- Taxon
- rice (Oryza sativa L.)Oryza sativae1
- Treatment
- AWMD regimee0
- Outcome
- cooking and eating quality of milled ricee0
- Direction
- improvee0
- Qualifier
- optimizing lipid and fatty acid synthesis in rice grainse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AWMD regime could improve cooking and eating quality of milled rice by optimizing lipid and fatty acid synthesis in rice grains”
e1“rice (Oryza sativa L.)”
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See all 15 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.