Abstract
Abstract Plastic film mulching cultivation under non‐flooded condition (PFMC), a new high‐efficiency and water‐saving cultivation technique, has been adopted and developed in many regions of china since the 1980s. Field experiments were conducted to evaluate the effects of PFMC on rice quality in three agro‐ecosystems (plain, basin and mountainous area) in 2001. The experiment consisted of three treatments, which were conventional flooded cultivation (CFC), PFMC and non‐mulching cultivation (NMC) under non‐flooded condition in a randomized complete block design with three replications. Compared with CFC, PFMC increased head‐milled rice recovery (with the exception of plain area), rice transparency and alkali spreading value, but slightly decreased gel consistency and obviously decreased chalky grain rate. Compared with NMC, those quality traits under PFMC were changeable at different sites. There were no significant differences for brown rice rate (except hilly area), milling rice quality and amylose content across treatments. In addition, nutritional quality under PFMC was notably improved in comparison with CFC and NMC. With few exceptions, the protein content, total amino acid content, individual amino acid content and Lys content of rice decreased in the order of PFMC > NMC > CFC. In general, rice quality is affected by each agro‐ecosystem and cultivation system to different degrees. PFMC had more influence on rice quality in hilly region than plain and basin regions. Copyright © 2006 Society of Chemical Industry
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Claims 11
Claim · model-written summary
Compared with CFC, PFMC increased head-milled rice recovery, except at the plain area.
- Taxon
- rice
Oryza sativae1 - Treatment
- PFMCe1
- Outcome
- head‐milled rice recoverye1
- Direction
- increasede1
- Qualifier
- with the exception of plain areae1
- Comparator
- CFCe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Compared with CFC, PFMC increased head‐milled rice recovery (with the exception of plain area)”
Claim · model-written summary
Compared with CFC, PFMC increased rice transparency and alkali spreading value.
- Taxon
- riceOryza sativae2
- Treatment
- PFMCe1
- Outcome
- rice transparency and alkali spreading valuee2
- Direction
- increasede1
- Comparator
- CFCe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Compared with CFC, PFMC increased head‐milled rice recovery (with the exception of plain area)”
e2“rice transparency and alkali spreading value”
Claim · model-written summary
Compared with CFC, PFMC slightly decreased rice gel consistency.
- Taxon
- riceOryza sativae1
- Treatment
- PFMCe1
- Outcome
- gel consistencye3
- Direction
- slightly decreasede3
- Comparator
- CFCe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Compared with CFC, PFMC increased head‐milled rice recovery (with the exception of plain area)”
e3“slightly decreased gel consistency”
Claim · model-written summary
Compared with CFC, PFMC obviously decreased chalky grain rate.
- Taxon
- riceOryza sativae1
- Treatment
- PFMCe1
- Outcome
- chalky grain ratee4
- Direction
- obviously decreasede4
- Comparator
- CFCe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Compared with CFC, PFMC increased head‐milled rice recovery (with the exception of plain area)”
e4“obviously decreased chalky grain rate”
Claim · model-written summary
Compared with NMC, rice quality traits under PFMC were changeable across sites.
- Taxon
- riceOryza sativae1
- Treatment
- PFMCe5
- Outcome
- quality traitse5
- Qualifier
- changeable at different sitese5
- Comparator
- NMCe5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Compared with CFC, PFMC increased head‐milled rice recovery (with the exception of plain area)”
e5“Compared with NMC, those quality traits under PFMC were changeable at different sites”
Claim · model-written summary
Brown rice rate showed no significant difference across PFMC, CFC and NMC treatments, except at hilly area.
- Taxon
- riceOryza sativae6
- Treatment
- PFMCe1
- Outcome
- brown rice ratee6
- Direction
- no significant differencese6
- Qualifier
- except hilly areae6
- Comparator
- across treatmentse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Compared with CFC, PFMC increased head‐milled rice recovery (with the exception of plain area)”
e6“There were no significant differences for brown rice rate (except hilly area), milling rice quality and amylose content across treatments”
Claim · model-written summary
Milling rice quality and amylose content showed no significant difference across PFMC, CFC and NMC treatments.
- Taxon
- riceOryza sativae6
- Treatment
- PFMCe1
- Outcome
- milling rice quality and amylose contente6
- Direction
- no significant differencese6
- Comparator
- across treatmentse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Compared with CFC, PFMC increased head‐milled rice recovery (with the exception of plain area)”
e6“There were no significant differences for brown rice rate (except hilly area), milling rice quality and amylose content across treatments”
Claim · model-written summary
PFMC notably improved nutritional quality of rice in comparison with CFC and NMC.
- Taxon
- riceOryza sativae1
- Treatment
- PFMCe2
- Outcome
- nutritional qualitye2
- Direction
- notably improvede2
- Comparator
- CFC and NMCe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Compared with CFC, PFMC increased head‐milled rice recovery (with the exception of plain area)”
e2“nutritional quality under PFMC was notably improved in comparison with CFC and NMC”
Claim · model-written summary
Protein content, total amino acid content and individual amino acid content of rice decreased in the order PFMC > NMC > CFC, with few exceptions.
- Taxon
- riceOryza sativae3
- Treatment
- PFMCe3
- Outcome
- protein content, total amino acid content, individual amino acid contente3
- Direction
- decreased in the order of PFMC > NMC > CFCe3
- Qualifier
- With few exceptionse3
- Comparator
- NMC > CFCe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“With few exceptions, the protein content, total amino acid content, individual amino acid content and Lys content of rice decreased in the order of PFMC > NMC > CFC”
Claim · model-written summary
Lys content of rice decreased in the order PFMC > NMC > CFC, with few exceptions.
- Taxon
- riceOryza sativae3
- Treatment
- PFMCe3
- Outcome
- Lys contente3
- Direction
- decreased in the order of PFMC > NMC > CFCe3
- Qualifier
- With few exceptionse3
- Comparator
- NMC > CFCe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“With few exceptions, the protein content, total amino acid content, individual amino acid content and Lys content of rice decreased in the order of PFMC > NMC > CFC”
Claim · model-written summary
PFMC had more influence on rice quality in hilly region than in plain and basin regions.
- Taxon
- riceOryza sativae4
- Treatment
- PFMCe4
- Outcome
- rice qualitye4
- Direction
- more influencee4
- Comparator
- plain and basin regionse4
- Setting
- hilly regione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“PFMC had more influence on rice quality in hilly region than plain and basin regions”
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